mirror of
https://github.com/processone/ejabberd.git
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2202 lines
78 KiB
TeX
2202 lines
78 KiB
TeX
\documentclass[a4paper,10pt]{article}
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%% Packages
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\usepackage{float}
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\usepackage{graphics}
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\usepackage{hevea}
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\usepackage[pdftex,colorlinks,unicode,urlcolor=blue,linkcolor=blue,
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pdftitle=Ejabberd\ Installation\ and\ Operation\ Guide,pdfauthor=Alexey\
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Shchepin,pdfsubject=ejabberd,pdfkeywords=ejabberd,
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pdfpagelabels=false]{hyperref}
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\usepackage{makeidx}
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%\usepackage{showidx} % Only for verifying the index entries.
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\usepackage{verbatim}
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\usepackage{geometry}
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%% Index
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\makeindex
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% Remove the index anchors from the HTML version to save size and bandwith.
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\newcommand{\ind}[1]{\begin{latexonly}\index{#1}\end{latexonly}}
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%% Images
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\newcommand{\logoscale}{0.7}
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\newcommand{\imgscale}{0.58}
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\newcommand{\insimg}[1]{\insscaleimg{\imgscale}{#1}}
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\newcommand{\insscaleimg}[2]{
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\imgsrc{#2}{}
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\begin{latexonly}
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\scalebox{#1}{\includegraphics{#2}}
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\end{latexonly}
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}
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%% Various
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\newcommand{\bracehack}{\def\{{\char"7B}\def\}{\char"7D}}
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\newcommand{\titem}[1]{\item[\bracehack\texttt{#1}]}
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\newcommand{\ns}[1]{\texttt{#1}}
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\newcommand{\jid}[1]{\texttt{#1}}
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\newcommand{\option}[1]{\texttt{#1}}
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\newcommand{\poption}[1]{{\bracehack\texttt{#1}}}
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\newcommand{\node}[1]{\texttt{#1}}
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\newcommand{\term}[1]{\texttt{#1}}
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\newcommand{\shell}[1]{\texttt{#1}}
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\newcommand{\ejabberd}{\texttt{ejabberd}}
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\newcommand{\Jabber}{Jabber}
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%% Modules
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\newcommand{\module}[1]{\texttt{#1}}
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\newcommand{\modannounce}{\module{mod\_announce}}
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\newcommand{\modconfigure}{\module{mod\_configure}}
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\newcommand{\moddisco}{\module{mod\_disco}}
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\newcommand{\modirc}{\module{mod\_irc}}
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\newcommand{\modlast}{\module{mod\_last}}
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\newcommand{\modmuc}{\module{mod\_muc}}
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\newcommand{\modmuclog}{\module{mod\_muc\_log}}
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\newcommand{\modecho}{\module{mod\_echo}}
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\newcommand{\modoffline}{\module{mod\_offline}}
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\newcommand{\modprivacy}{\module{mod\_privacy}}
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\newcommand{\modprivate}{\module{mod\_private}}
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\newcommand{\modpubsub}{\module{mod\_pubsub}}
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\newcommand{\modregister}{\module{mod\_register}}
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\newcommand{\modroster}{\module{mod\_roster}}
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\newcommand{\modservicelog}{\module{mod\_service\_log}}
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\newcommand{\modsharedroster}{\module{mod\_shared\_roster}}
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\newcommand{\modstats}{\module{mod\_stats}}
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\newcommand{\modtime}{\module{mod\_time}}
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\newcommand{\modvcard}{\module{mod\_vcard}}
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\newcommand{\modversion}{\module{mod\_version}}
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%% Common options
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\newcommand{\iqdiscitem}[1]{\titem{iqdisc} \ind{options!iqdisc}This specifies
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the processing discipline for #1 IQ queries
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(see section~\ref{sec:modiqdiscoption}).}
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\newcommand{\hostitem}[1]{
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\titem{hosts} \ind{options!hosts} This option defines the hostnames of the
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service (see section~\ref{sec:modhostsoption}). If neither \texttt{hosts} nor
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the old \texttt{host} is present, the prefix ``\jid{#1.}'' is added to all
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\ejabberd{} hostnames.
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}
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%% Title page
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\include{version}
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\title{Ejabberd \version\ Installation and Operation Guide}
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\author{Alexey Shchepin \\
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\ahrefurl{mailto:alexey@sevcom.net} \\
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\ahrefurl{xmpp:aleksey@jabber.ru}}
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%% Options
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\newcommand{\marking}[1]{#1} % Marking disabled
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\newcommand{\quoting}[2][yozhik]{} % Quotes disabled
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\newcommand{\new}{\begin{latexonly}\marginpar{\textsc{new}}\end{latexonly}} % Highlight new features
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\newcommand{\improved}{\begin{latexonly}\marginpar{\textsc{improved}}\end{latexonly}} % Highlight improved features
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\newcommand{\moreinfo}[1]{} % Hide details
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%% Footnotes
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\begin{latexonly}
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\global\parskip=9pt plus 3pt minus 1pt
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\global\parindent=0pt
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\gdef\ahrefurl#1{\href{#1}{\texttt{#1}}}
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\gdef\footahref#1#2{#2\footnote{\href{#1}{\texttt{#1}}}}
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\end{latexonly}
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\newcommand{\tjepref}[2]{\footahref{http://www.jabber.org/jeps/jep-#1.html}{#2}}
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\newcommand{\jepref}[1]{\tjepref{#1}{JEP-#1}}
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\begin{document}
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\label{sec:titlepage}
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\begin{titlepage}
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\maketitle{}
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\begin{center}
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{\insscaleimg{\logoscale}{logo.png}
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\par
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}
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\end{center}
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\begin{quotation}\textit{I can thoroughly recommend ejabberd for ease of setup --
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Kevin Smith, Current maintainer of the Psi project}\end{quotation}
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\end{titlepage}
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% Set the page counter to 2 so that the titlepage and the second page do not
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% have the same page number. This fixes the PDFLaTeX warning "destination with
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% the same identifier".
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\begin{latexonly}
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\setcounter{page}{2}
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\end{latexonly}
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\tableofcontents{}
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% Input introduction.tex
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\input{introduction}
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\section{Installation from Source}
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\label{sec:installation}
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\ind{installation}
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\subsection{Installation Requirements}
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\label{sec:installreq}
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\subsubsection{``Unix-like'' operating systems}
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\label{sec:installrequnix}
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\ind{installation!requirements for ``Unix-like'' operating systems}
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To compile \ejabberd{} on a ``Unix-like'' operating system, you need:
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\begin{itemize}
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\item GNU Make;
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\item GCC;
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\item libexpat 1.95 or higher;
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\item Erlang/OTP R9C-2 or higher;
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\item OpenSSL 0.9.6 or higher (optional).
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\item Zlib 1.2.3 or higher (optional).
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\item GNU Iconv 1.8 or higher (optional, not needed at all on systems with GNU libc).
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\end{itemize}
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\subsubsection{Windows}
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\label{sec:installreqwin}
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\ind{installation!requirements for Windows}
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To compile \ejabberd{} on a Windows flavour, you need:
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\begin{itemize}
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\item MS Visual C++ 6.0 Compiler
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\item \footahref{http://erlang.org/download.html}{Erlang/OTP R9C-2 or higher}
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\item \footahref{http://sourceforge.net/project/showfiles.php?group\_id=10127\&package\_id=11277}{Expat 1.95.7 or higher}
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\item
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\footahref{http://www.gnu.org/software/libiconv/}{GNU Iconv 1.9.1}
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(optional)
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\item \footahref{http://www.slproweb.com/products/Win32OpenSSL.html}{Shining Light OpenSSL}
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(to enable SSL connections)
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\item \footahref{http://www.zlib.net/}{Zlib 1.2.3 or higher}
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\end{itemize}
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\subsection{Obtaining \ejabberd{}}
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\label{sec:obtaining}
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\ind{download}
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Released versions of \ejabberd{} can be obtained from \\
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\ahrefurl{http://www.process-one.net/en/projects/ejabberd/download.html}.
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\ind{Subversion repository}
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The latest development version can be retrieved from the Subversion repository\@.
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\begin{verbatim}
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svn co http://svn.process-one.net/ejabberd/trunk ejabberd
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\end{verbatim}
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\subsection{Compilation}
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\label{sec:compilation}
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\ind{compilation}
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\subsubsection{``Unix-like'' operating systems}
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\label{sec:compilationunix}
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\ind{compilation!on ``Unix-like'' operating systems}
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Compile \ejabberd{} on a ``Unix-like'' operating system by executing:
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\begin{verbatim}
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./configure
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make
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su
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make install
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\end{verbatim}
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These commands will:
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\begin{itemize}
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\item install \ejabberd{} into the directory \verb|/var/lib/ejabberd|,
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\item install the configuration file into \verb|/etc/ejabberd|,
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\item create a directory called \verb|/var/log/ejabberd| to store log files.
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\end{itemize}
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\subsubsection{Windows}
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\label{sec:compilationwin}
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\ind{compilation!on Windows}
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\begin{itemize}
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\item Install Erlang emulator (for example, into \verb|C:\Program Files\erl5.3|).
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\item Install Expat library into \verb|C:\Program Files\Expat-1.95.7|
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directory.
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Copy file \verb|C:\Program Files\Expat-1.95.7\Libs\libexpat.dll|
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to your Windows system directory (for example, \verb|C:\WINNT| or
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\verb|C:\WINNT\System32|)
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\item Build and install the Iconv library into the directory
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\verb|C:\Program Files\iconv-1.9.1|.
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Copy file \verb|C:\Program Files\iconv-1.9.1\bin\iconv.dll| to your
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Windows system directory (more installation instructions can be found in the
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file README.woe32 in the iconv distribution).
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Note: instead of copying libexpat.dll and iconv.dll to the Windows
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directory, you can add the directories
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\verb|C:\Program Files\Expat-1.95.7\Libs| and
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\verb|C:\Program Files\iconv-1.9.1\bin| to the \verb|PATH| environment
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variable.
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\item While in the directory \verb|ejabberd\src| run:
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\begin{verbatim}
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configure.bat
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nmake -f Makefile.win32
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\end{verbatim}
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\item Edit the file \verb|ejabberd\src\ejabberd.cfg| and run
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\begin{verbatim}
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werl -s ejabberd -name ejabberd
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\end{verbatim}
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\end{itemize}
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\subsection{Starting}
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\label{sec:starting}
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\ind{starting}
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Execute the following command to start \ejabberd{}:
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\begin{verbatim}
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erl -pa /var/lib/ejabberd/ebin -name ejabberd -s ejabberd
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\end{verbatim}
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or
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\begin{verbatim}
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erl -pa /var/lib/ejabberd/ebin -sname ejabberd -s ejabberd
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\end{verbatim}
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In the latter case the Erlang node will be identified using only the first part
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of the host name, i.\,e. other Erlang nodes outside this domain can't contact
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this node.
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Note that when using the above command, \ejabberd{} will search for the
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configuration file in the current directory and will use the current directory
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for storing its user database and for logging.
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To specify the path to the configuration file, the log files and the Mnesia
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database directory, you may use the following command:
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\begin{verbatim}
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erl -pa /var/lib/ejabberd/ebin \
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-sname ejabberd \
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-s ejabberd \
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-ejabberd config \"/etc/ejabberd/ejabberd.cfg\" \
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log_path \"/var/log/ejabberd/ejabberd.log\" \
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-sasl sasl_error_logger \{file,\"/var/log/ejabberd/sasl.log\"\} \
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-mnesia dir \"/var/lib/ejabberd/spool\"
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\end{verbatim}
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You can find other useful options in the Erlang manual page
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(\shell{erl -man erl}).
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To use more than 1024 connections, you should set the environment variable
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\verb|ERL_MAX_PORTS|:
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\begin{verbatim}
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export ERL_MAX_PORTS=32000
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\end{verbatim}
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Note that with this value, \ejabberd{} will use more memory (approximately 6\,MB
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more).
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To reduce memory usage, you may set the environment variable
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\verb|ERL_FULLSWEEP_AFTER|:
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\begin{verbatim}
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export ERL_FULLSWEEP_AFTER=0
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\end{verbatim}
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But in this case \ejabberd{} can start to work slower.
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\section{Configuration}
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\label{sec:configuration}
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\subsection{Initial Configuration}
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\label{sec:initconfig}
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\ind{configuration file}
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The configuration file will be loaded the first time you start \ejabberd{}. The
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content from this file will be parsed and stored in a database. Subsequently the
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configuration will be loaded from the database and any commands in the
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configuration file are appended to the entries in the database. The
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configuration file contains a sequence of Erlang terms. Lines beginning with a
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\term{`\%'} sign are ignored. Each term is a tuple of which the first element is
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the name of an option, and any further elements are that option's values. If the
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configuration file do not contain for instance the ``hosts'' option, the old
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host name(s) stored in the database will be used.
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You can override the old values stored in the database by adding next lines to
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the configuration file:
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\begin{verbatim}
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override_global.
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override_local.
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override_acls.
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\end{verbatim}
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With these lines the old global options, local options and ACLs will be removed
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before new ones are added.
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\subsubsection{Host Names}
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\label{sec:confighostname}
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\ind{options!hosts}\ind{host names}
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The option \option{hosts} defines a list containing one or more domains that
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\ejabberd{} will serve.
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Examples:
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\begin{itemize}
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\item Serving one domain:
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\begin{itemize}
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\item \begin{verbatim}
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{hosts, ["example.org"]}.
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\end{verbatim}
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\item Backwards compatibility with older \ejabberd{} versions can be retained
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with:
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\begin{verbatim}
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{host, "example.org"}.
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\end{verbatim}
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\end{itemize}
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\item Serving two domains:
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\begin{verbatim}
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{hosts, ["one.org", "two.org"]}.
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\end{verbatim}
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\end{itemize}
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\subsubsection{Default Language}
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\label{sec:configlanguage}
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\ind{options!language}\ind{language}
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The option \option{language} defines the default language of server strings that
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can be seen by \Jabber{} clients. If a \Jabber{} client do not support
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\option{xml:lang}, the specified language is used. The default value for the
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option \option{language} is \term{"en"}. In order to take effect there must be a
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translation file \term{<language>.msg} in \ejabberd{}'s \term{msgs} directory.
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Examples:
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\begin{itemize}
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\item To set Russian as default language:
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\begin{verbatim}
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{language, "ru"}.
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\end{verbatim}
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\item To set Spanish as default language:
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\begin{verbatim}
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{language, "es"}.
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\end{verbatim}
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\end{itemize}
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\subsubsection{Access Rules}
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\label{sec:configaccess}
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\ind{options!acl}\ind{access rules}\ind{ACL}\ind{Access Control List}
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Access control in \ejabberd{} is performed via Access Control Lists (ACLs). The
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declarations of ACLs in the configuration file have the following syntax:
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\begin{verbatim}
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{acl, <aclname>, {<acltype>, ...}}.
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\end{verbatim}
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\term{<acltype>} can be one of the following:
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\begin{description}
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\titem{all} Matches all JIDs. Example:
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\begin{verbatim}
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{acl, all, all}.
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\end{verbatim}
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\titem{\{user, <username>\}} Matches the user with the name
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\term{<username>} at the first virtual host. Example:
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\begin{verbatim}
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{acl, admin, {user, "yozhik"}}.
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\end{verbatim}
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\titem{\{user, <username>, <server>\}} Matches the user with the JID
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\term{<username>@<server>} and any resource. Example:
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\begin{verbatim}
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{acl, admin, {user, "yozhik", "example.org"}}.
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\end{verbatim}
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\titem{\{server, <server>\}} Matches any JID from server
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\term{<server>}. Example:
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\begin{verbatim}
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{acl, exampleorg, {server, "example.org"}}.
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\end{verbatim}
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\titem{\{user\_regexp, <regexp>\}} Matches any local user with a name that
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matches \term{<regexp>} at the first virtual host. Example:
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\begin{verbatim}
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{acl, tests, {user, "^test[0-9]*$"}}.
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\end{verbatim}
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%$
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\titem{\{user\_regexp, <regexp>, <server>\}} Matches any user with a name
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that matches \term{<regexp>} at server \term{<server>}. Example:
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\begin{verbatim}
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{acl, tests, {user, "^test", "example.org"}}.
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\end{verbatim}
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\titem{\{server\_regexp, <regexp>\}} Matches any JID from the server that
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matches \term{<regexp>}. Example:
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\begin{verbatim}
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{acl, icq, {server, "^icq\\."}}.
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\end{verbatim}
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\titem{\{node\_regexp, <user\_regexp>, <server\_regexp>\}} Matches any user
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with a name that matches \term{<user\_regexp>} at any server that matches
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\term{<server\_regexp>}. Example:
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\begin{verbatim}
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{acl, yohzik, {node_regexp, "^yohzik$", "^example.(com|org)$"}}.
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\end{verbatim}
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\titem{\{user\_glob, <glob>\}}
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\titem{\{user\_glob, <glob>, <server>\}}
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\titem{\{server\_glob, <glob>\}}
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\titem{\{node\_glob, <user\_glob>, <server\_glob>\}} This is the same as
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above. However, it uses shell glob patterns instead of regexp. These patterns
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can have the following special characters:
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\begin{description}
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\titem{*} matches any string including the null string.
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\titem{?} matches any single character.
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\titem{[...]} matches any of the enclosed characters. Character
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ranges are specified by a pair of characters separated by a \term{`-'}.
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If the first character after \term{`['} is a \term{`!'}, any
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character not enclosed is matched.
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\end{description}
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\end{description}
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The following ACLs are pre-defined:
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\begin{description}
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\titem{all} Matches any JID.
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\titem{none} Matches no JID.
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\end{description}
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An entry allowing or denying access to different services looks similar to
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this:
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\begin{verbatim}
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{access, <accessname>, [{allow, <aclname>},
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{deny, <aclname>},
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...
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]}.
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\end{verbatim}
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When a JID is checked to have access to \term{<accessname>}, the server
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sequentially checks if that JID mathes any of the ACLs that are named in the
|
|
second elements of the tuples in the list. If it matches, the first element of
|
|
the first matched tuple is returned, otherwise ``\term{deny}'' is returned.
|
|
|
|
Example:
|
|
\begin{verbatim}
|
|
{access, configure, [{allow, admin}]}.
|
|
{access, something, [{deny, badmans},
|
|
{allow, all}]}.
|
|
\end{verbatim}
|
|
|
|
The following access rules are pre-defined:
|
|
\begin{description}
|
|
\titem{all} Always returns ``\term{allow}''
|
|
\titem{none} Always returns ``\term{deny}''
|
|
\end{description}
|
|
|
|
\subsubsection{Shapers}
|
|
\label{sec:configshaper}
|
|
\ind{options!shaper}\ind{options!maxrate}\ind{shapers}\ind{maxrate}\ind{traffic speed}
|
|
|
|
Shapers enable you to limit connection traffic. The syntax of
|
|
shapers is like this:
|
|
\begin{verbatim}
|
|
{shaper, <shapername>, <kind>}.
|
|
\end{verbatim}
|
|
Currently only one kind of shaper called \term{maxrate} is available. It has the
|
|
following syntax:
|
|
\begin{verbatim}
|
|
{maxrate, <rate>}
|
|
\end{verbatim}
|
|
where \term{<rate>} stands for the maximum allowed incomig rate in bytes per
|
|
second.
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item To define a shaper named ``\term{normal}'' with traffic speed limited to
|
|
1,000\,bytes/second:
|
|
\begin{verbatim}
|
|
{shaper, normal, {maxrate, 1000}}.
|
|
\end{verbatim}
|
|
\item To define a shaper named ``\term{fast}'' with traffic speed limited to
|
|
50,000\,bytes/second:
|
|
\begin{verbatim}
|
|
{shaper, fast, {maxrate, 50000}}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsubsection{Listened Sockets}
|
|
\label{sec:configlistened}
|
|
\ind{options!listen}
|
|
|
|
The option \option{listen} defines for which addresses and ports \ejabberd{}
|
|
will listen and what services will be run on them. Each element of the list is a
|
|
tuple with the following elements:
|
|
\begin{itemize}
|
|
\item Port number.
|
|
\item Module that serves this port.
|
|
\item Options to this module.
|
|
\end{itemize}
|
|
|
|
\ind{modules!ejabberd\_c2s}\ind{modules!ejabberd\_s2s\_in}\ind{modules!ejabberd\_service}\ind{modules!ejabberd\_http}\ind{protocols!JEP-0114: Jabber Component Protocol}
|
|
Currently next modules are implemented:
|
|
\begin{table}[H]
|
|
\centering
|
|
\def\arraystretch{1.4}
|
|
\begin{tabular}{|l|l|p{87mm}|}
|
|
\hline \texttt{ejabberd\_c2s}& Description& Handles c2s connections.\\
|
|
\cline{2-3} & Options& \texttt{access}, \texttt{certfile}, \texttt{inet6},
|
|
\texttt{ip}, \texttt{shaper}, \texttt{ssl}, \texttt{tls},
|
|
\texttt{starttls}, \texttt{starttls\_required}, \texttt{zlib}\\
|
|
\hline \texttt{ejabberd\_s2s\_in}& Description& Handles incoming s2s
|
|
connections.\\
|
|
\cline{2-3} & Options& \texttt{inet6}, \texttt{ip}\\
|
|
\hline \texttt{ejabberd\_service}& Description& Interacts with external
|
|
components (*).\\
|
|
\cline{2-3} & Options& \texttt{access}, \texttt{hosts}, \texttt{inet6},
|
|
\texttt{ip}, \texttt{shaper}\\
|
|
\hline \texttt{ejabberd\_http}& Description& Handles incoming HTTP
|
|
connections.\\
|
|
\cline{2-3} & Options& \texttt{certfile}, \texttt{http\_poll},
|
|
\texttt{inet6}, \texttt{ip}, \texttt{tls}, \texttt{web\_admin}\\
|
|
\hline
|
|
\end{tabular}
|
|
\end{table}
|
|
|
|
(*) The mechanism for \footahref{http://ejabberd.jabber.ru/tutorials-transports}{external components} is defined in Jabber Component Protocol (\jepref{0114}).
|
|
|
|
The following options are available:
|
|
\begin{description}
|
|
\titem{\{access, <access rule>\}} \ind{options!access}This option defines
|
|
access to the port. The default value is ``\term{all}''.
|
|
\titem{\{certfile, Path\}} Path to a file containing the SSL certificate.
|
|
\titem{\{hosts, [Hostnames], [HostOptions]\}} \ind{options!hosts}This option
|
|
defines one or more hostnames of connected services and enables you to
|
|
specify additional options including \poption{\{password, Secret\}}.
|
|
\titem{http\_poll} \ind{options!http\_poll}\ind{protocols!JEP-0025: HTTP Polling}\ind{JWChat}\ind{web-based Jabber client}
|
|
This option enables HTTP Polling (\jepref{0025}) support. HTTP Polling
|
|
enables access via HTTP requests to \ejabberd{} from behind firewalls which
|
|
do not allow outgoing sockets on port 5222.
|
|
|
|
If HTTP Polling is enabled, it will be available at
|
|
\verb|http://server:port/http-poll/|. Be aware that support for HTTP Polling
|
|
is also needed in the \Jabber{} client. Remark also that HTTP Polling can be
|
|
interesting to host a web-based \Jabber{} client such as
|
|
\footahref{http://jwchat.sourceforge.net/}{JWChat} (there is a tutorial to
|
|
\footahref{http://ejabberd.jabber.ru/jwchat}{install JWChat} with
|
|
instructions for \ejabberd{}).
|
|
\titem{inet6} \ind{options!inet6}\ind{IPv6}Set up the socket for IPv6.
|
|
\titem{\{ip, IPAddress\}} \ind{options!ip}This option specifies which network
|
|
interface to listen for. For example \verb|{ip, {192, 168, 1, 1}}|.
|
|
\titem{\{shaper, <access rule>\}} \ind{options!shaper}This option defines a
|
|
shaper for the port (see section~\ref{sec:configshaper}). The default value
|
|
is ``\term{none}''.
|
|
\titem{ssl} \ind{options!ssl}\ind{SSL}This option specifies that traffic on
|
|
the port will be encrypted using SSL. You should also set the
|
|
\option{certfile} option. It is recommended to use the \term{tls} option
|
|
instead.
|
|
\titem{starttls} \ind{options!starttls}\ind{modules!STARTTLS}This option
|
|
specifies that STARTTLS encryption is available on connections to the port.
|
|
You should also set the \option{certfile} option.
|
|
\titem{starttls\_required} \ind{options!starttls\_required}This option
|
|
specifies that STARTTLS encryption is required on connections to the port.
|
|
No unencrypted connections will be allowed. You should also set the
|
|
\option{certfile} option.
|
|
\titem{tls} \ind{options!tls}\ind{TLS}This option specifies that traffic on
|
|
the port will be encrypted using SSL immediately after connecting. You
|
|
should also set the \option{certfile} option.
|
|
\titem{zlib} \ind{options!zlib}\ind{protocols!JEP-0138: Stream Compression}\ind{Zlib}This
|
|
option specifies that Zlib stream compression (as defined in \jepref{0138})
|
|
is available on connections to the port. Client cannot use stream compression and
|
|
stream encryption simultaneously, so if you specify both \option{tls} (or \option{ssl})
|
|
and \option{zlib} the latter option will not affect connection at all.
|
|
\titem{web\_admin} \ind{options!web\_admin}\ind{web interface}This option
|
|
enables the web interface for \ejabberd{} administration which is available
|
|
at \verb|http://server:port/admin/|. Login and password are the username and
|
|
password of one of the registered users who are granted access by the
|
|
``configure'' access rule.
|
|
\end{description}
|
|
|
|
Also the following global options are available for s2s connections:
|
|
\begin{description}
|
|
\titem{\{s2s\_use\_starttls, true|false\}}
|
|
\ind{options!s2s\_use\_starttls}This option defines whether to use STARTTLS
|
|
for s2s connections.
|
|
\titem{\{s2s\_certfile, Path\}} \ind{options!s2s\_certificate}Path to the
|
|
file containing the SSL certificate.
|
|
\titem{\{domain\_certfile, Domain, Path\}} \ind{options!domain\_certfile}Path
|
|
to the file containing the SSL certificate for the specified domain.
|
|
\end{description}
|
|
|
|
For instance, the following configuration defines that:
|
|
\begin{itemize}
|
|
\item c2s connections are listened for on port 5222 and 5223 (SSL) and denied
|
|
for the user ``\term{bad}''
|
|
\item s2s connections are listened for on port 5269 with STARTTLS for secured
|
|
traffic enabled.
|
|
\item Port 5280 is serving the web interface and the HTTP Polling service. Note
|
|
that it is also possible to serve them on different ports. The second
|
|
example in section~\ref{sec:webadm} shows how exactly this can be done.
|
|
\item All users except for the administrators have a traffic of limit
|
|
1,000\,Bytes/second
|
|
\item \ind{transports!AIM}The
|
|
\footahref{http://ejabberd.jabber.ru/pyaimt}{AIM transport}
|
|
\jid{aim.example.org} is connected to port 5233 with password
|
|
``\term{aimsecret}''
|
|
\item \ind{transports!ICQ}The ICQ transport JIT (\jid{icq.example.org} and
|
|
\jid{sms.example.org}) is connected to port 5234 with password
|
|
``\term{jitsecret}''
|
|
\item \ind{transports!MSN}The
|
|
\footahref{http://ejabberd.jabber.ru/pymsnt}{MSN transport}
|
|
\jid{msn.example.org} is connected to port 5235 with password
|
|
``\term{msnsecret}''
|
|
\item \ind{transports!Yahoo}The
|
|
\footahref{http://ejabberd.jabber.ru/yahoo-transport-2}{Yahoo! transport}
|
|
\jid{yahoo.example.org} is connected to port 5236 with password
|
|
``\term{yahoosecret}''
|
|
\item \ind{transports!Gadu-Gadu}The \footahref{http://ejabberd.jabber.ru/jabber-gg-transport}{Gadu-Gadu transport} \jid{gg.example.org} is
|
|
connected to port 5237 with password ``\term{ggsecret}''
|
|
\item \ind{transports!email notifier}The
|
|
\footahref{http://ejabberd.jabber.ru/jmc}{Jabber Mail Component}
|
|
\jid{jmc.example.org} is connected to port 5238 with password
|
|
``\term{jmcsecret}''
|
|
\end{itemize}
|
|
\begin{verbatim}
|
|
{acl, blocked, {user, "bad"}}.
|
|
{access, c2s, [{deny, blocked},
|
|
{allow, all}]}.
|
|
{shaper, normal, {maxrate, 1000}}.
|
|
{access, c2s_shaper, [{none, admin},
|
|
{normal, all}]}.
|
|
{listen,
|
|
[{5222, ejabberd_c2s, [{access, c2s}, {shaper, c2s_shaper}]},
|
|
{5223, ejabberd_c2s, [{access, c2s},
|
|
ssl, {certfile, "/path/to/ssl.pem"}]},
|
|
{5269, ejabberd_s2s_in, []},
|
|
{5280, ejabberd_http, [http_poll, web_admin]},
|
|
{5233, ejabberd_service, [{host, "aim.example.org",
|
|
[{password, "aimsecret"}]}]},
|
|
{5234, ejabberd_service, [{hosts, ["icq.example.org", "sms.example.org"],
|
|
[{password, "jitsecret"}]}]},
|
|
{5235, ejabberd_service, [{host, "msn.example.org",
|
|
[{password, "msnsecret"}]}]},
|
|
{5236, ejabberd_service, [{host, "yahoo.example.org",
|
|
[{password, "yahoosecret"}]}]},
|
|
{5237, ejabberd_service, [{host, "gg.example.org",
|
|
[{password, "ggsecret"}]}]},
|
|
{5238, ejabberd_service, [{host, "jmc.example.org",
|
|
[{password, "jmcsecret"}]}]}
|
|
]
|
|
}.
|
|
{s2s_use_starttls, true}.
|
|
{s2s_certfile, "/path/to/ssl.pem"}.
|
|
\end{verbatim}
|
|
Note, that for \ind{jabberd 1.4}jabberd 1.4- or \ind{WPJabber}WPJabber-based
|
|
services you have to make the transports log and do \ind{XDB}XDB by themselves:
|
|
\begin{verbatim}
|
|
<!--
|
|
You have to add elogger and rlogger entries here when using ejabberd.
|
|
In this case the transport will do the logging.
|
|
-->
|
|
|
|
<log id='logger'>
|
|
<host/>
|
|
<logtype/>
|
|
<format>%d: [%t] (%h): %s</format>
|
|
<file>/var/log/jabber/service.log</file>
|
|
</log>
|
|
|
|
<!--
|
|
Some Jabber server implementations do not provide
|
|
XDB services (for example, jabberd2 and ejabberd).
|
|
xdb_file.so is loaded in to handle all XDB requests.
|
|
-->
|
|
|
|
<xdb id="xdb">
|
|
<host/>
|
|
<load>
|
|
<!-- this is a lib of wpjabber or jabberd -->
|
|
<xdb_file>/usr/lib/jabber/xdb_file.so</xdb_file>
|
|
</load>
|
|
<xdb_file xmlns="jabber:config:xdb_file">
|
|
<spool><jabberd:cmdline flag='s'>/var/spool/jabber</jabberd:cmdline></spool>
|
|
</xdb_file>
|
|
</xdb>
|
|
\end{verbatim}
|
|
|
|
\subsubsection{Modules}
|
|
\label{sec:configmodules}
|
|
\ind{modules}
|
|
|
|
The option \term{modules} defines the list of modules that will be loaded after
|
|
\ejabberd{} startup. Each entry in the list is a tuple in which the first
|
|
element is the name of a module and the second is a list of options for that
|
|
module. Read section~\ref{sec:modules} for detailed information about each
|
|
module.
|
|
|
|
Example:\ind{modules!overview}
|
|
\begin{verbatim}
|
|
{modules,
|
|
[{mod_register, []},
|
|
{mod_roster, []},
|
|
{mod_privacy, []},
|
|
{mod_configure, []},
|
|
{mod_disco, []},
|
|
{mod_stats, []},
|
|
{mod_vcard, []},
|
|
{mod_offline, []},
|
|
{mod_announce, [{access, announce}]},
|
|
{mod_echo, [{hosts, ["echo.example.org"]}]},
|
|
{mod_private, []},
|
|
{mod_irc, []},
|
|
{mod_muc, []},
|
|
{mod_pubsub, []},
|
|
{mod_time, [{iqdisc, no_queue}]},
|
|
{mod_last, []},
|
|
{mod_version, []}
|
|
]}.
|
|
\end{verbatim}
|
|
|
|
\subsubsection{Virtual Hosting}
|
|
\label{sec:configvirtualhost}
|
|
\ind{virtual hosting}\ind{virtual hosts}
|
|
|
|
Options can be defined separately for every virtual host using the
|
|
\term{host\_config} option.\ind{options!host\_config} It has the following
|
|
syntax:
|
|
\begin{verbatim}
|
|
{host_config, <hostname>, [<option>, <option>, ...]}.
|
|
\end{verbatim}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item Domain \jid{one.org} is using the internal authentication method while
|
|
domain \jid{two.org} is using the \ind{LDAP}LDAP server running on the domain
|
|
\jid{localhost} to perform authentication:
|
|
\begin{verbatim}
|
|
{host_config, "one.org", [{auth_method, internal}]}.
|
|
|
|
{host_config, "two.org", [{auth_method, ldap},
|
|
{ldap_servers, ["localhost"]},
|
|
{ldap_uidattr, "uid"},
|
|
{ldap_rootdn, "dc=localdomain"},
|
|
{ldap_rootdn, "dc=example,dc=com"},
|
|
{ldap_password, ""}]}.
|
|
\end{verbatim}
|
|
\item Domain \jid{one.org} is using \ind{ODBC}ODBC to perform authentication
|
|
while domain \jid{two.org} is using the LDAP servers running on the domains
|
|
\jid{localhost} and \jid{otherhost}:
|
|
\begin{verbatim}
|
|
{host_config, "one.org", [{auth_method, odbc},
|
|
{odbc_server, "DSN=ejabberd;UID=ejabberd;PWD=ejabberd"}]}.
|
|
|
|
{host_config, "two.org", [{auth_method, ldap},
|
|
{ldap_servers, ["localhost", "otherhost"]},
|
|
{ldap_uidattr, "uid"},
|
|
{ldap_rootdn, "dc=localdomain"},
|
|
{ldap_rootdn, "dc=example,dc=com"},
|
|
{ldap_password, ""}]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsubsection{SASL anonymous and anonymous login}
|
|
\label{sec:configsaslanonymous}
|
|
\ind{sasl anonymous}\ind{anonymous login}
|
|
|
|
The configuration of the anonymous mode can be done with three host_config
|
|
parameters:
|
|
|
|
\begin{itemize}
|
|
\item \term{auth\_method}: This value is used for defining the authentication method:
|
|
internal, odbc, ldap, external). You now have a special extra option to enable
|
|
anonymous mode: anonymous.
|
|
|
|
\item \term{allow\_multiple\_connections}: This option can be either true or false and
|
|
is only used when the anonymous mode is enabled. Setting it to true means that
|
|
the same username will be able to be taken several time in anonymous login
|
|
mode if different resource are used to connect. This option is only useful in
|
|
very special cases. It defaults to false.
|
|
|
|
\item \term{anonymous\_protocol}: This option can take three values: sasl_anon,
|
|
login_anon or both. sasl_anon means that SASL anonymous mode is
|
|
enabled. login_anon means that anonymous login mode is enabled. both means
|
|
that SASL anonymous and login anonymous are enabled.
|
|
\end{itemize}
|
|
|
|
Those options are defined for each virtual host with the \term{host\_config}
|
|
parameter (see section~\ref{sec:configvirtualhost}).
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item To enable anonymous login on a virtual host:
|
|
\begin{verbatim}
|
|
{host_config, "public.example.org", [{auth_method, anonymous},
|
|
{anonymous_protocol, login_anon}]}.
|
|
\end{verbatim}
|
|
\item To enable anonymous login and internal authentication on a virtual host:
|
|
\begin{verbatim}
|
|
{host_config, "public.example.org", [{auth_method, [anonymous,internal]},
|
|
{anonymous_protocol, login_anon}]}.
|
|
\end{verbatim}
|
|
\item To enable SASL anonymous on a virtual host:
|
|
\begin{verbatim}
|
|
{host_config, "public.example.org", [{auth_method, [anonymous]},
|
|
{anonymous_protocol, sasl_anon}]}.
|
|
\end{verbatim}
|
|
\item To enable SASL anonymous and anonymous login on a virtual host:
|
|
\begin{verbatim}
|
|
{host_config, "public.example.org", [{auth_method, [anonymous]},
|
|
{anonymous_protocol, both}]}.
|
|
\end{verbatim}
|
|
\item To enable SASL anonymous, anonymous login and internal authentication on
|
|
a virtual host:
|
|
\begin{verbatim}
|
|
{host_config, "public.example.org", [{auth_method, [anonymous,internal]},
|
|
{anonymous_protocol, both}]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
A detailled tutorial on SASL anonymous and anonymous login support is
|
|
available from:
|
|
\ahrefurl{http://support.process-one.net/doc/display/MESSENGER/Anonymous+users+support}
|
|
|
|
\subsection{Creating an Initial Administrator}
|
|
\label{sec:initialadmin}
|
|
|
|
Before the web interface can be entered to perform administration tasks, an
|
|
account with administrator rights is needed on your \ejabberd{} deployment.
|
|
|
|
Instructions to create an initial administrator account:
|
|
\begin{enumerate}
|
|
\item Register an account on your \ejabberd{} deployment. An account can be
|
|
created in two ways:
|
|
\begin{enumerate}
|
|
\item Using the tool \term{ejabberdctl}\ind{ejabberdctl} (see
|
|
section~\ref{sec:ejabberdctl}):
|
|
\begin{verbatim}
|
|
% ejabberdctl node@host register admin example.org password
|
|
\end{verbatim}
|
|
\item Using In-Band Registration (see section~\ref{sec:modregister}): you can
|
|
use a \Jabber{} client to register an account.
|
|
\end{enumerate}
|
|
\item Edit the configuration file to promote the account created in the previous
|
|
step to an account with administrator rights. Note that if you want to add
|
|
more administrators, a seperate acl entry is needed for each administrator.
|
|
\begin{verbatim}
|
|
{acl, admins, {user, "admin", "example.org"}}.
|
|
{access, configure, [{allow, admins}]}.
|
|
\end{verbatim}
|
|
\item Restart \ejabberd{} to load the new configuration.
|
|
\item Open the web interface (\verb|http://server:port/admin/|) in your
|
|
favourite browser. Make sure to enter the \emph{full} JID as username (in this
|
|
example: \jid{admin@example.org}. The reason that you also need to enter the
|
|
suffix, is because \ejabberd{}'s virtual hosting support.
|
|
\end{enumerate}
|
|
|
|
\subsection{Online Configuration and Monitoring}
|
|
\label{sec:onlineconfig}
|
|
|
|
\subsubsection{Web Interface}
|
|
\label{sec:webadm}
|
|
\ind{web interface}
|
|
|
|
To perform online configuration of \ejabberd{} you need to enable the
|
|
\term{ejabberd\_http} listener with the option \term{web\_admin} (see
|
|
section~\ref{sec:configlistened}). Then you can open
|
|
\verb|http://server:port/admin/| in your favourite web browser. You
|
|
will be asked to enter the username (the \emph{full} \Jabber{} ID) and password
|
|
of an \ejabberd{} user with administrator rights. After authentication
|
|
you will see a page similar to figure~\ref{fig:webadmmain}.
|
|
|
|
\begin{figure}[htbp]
|
|
\centering
|
|
\insimg{webadmmain.png}
|
|
\caption{Top page from the web interface}
|
|
\label{fig:webadmmain}
|
|
\end{figure}
|
|
Here you can edit access restrictions, manage users, create backups,
|
|
manage the database, enable/disable ports listened for, view server
|
|
statistics,\ldots
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item You can serve the web interface on the same port as the
|
|
\ind{protocols!JEP-0025: HTTP Polling}HTTP Polling interface. In this example
|
|
you should point your web browser to \verb|http://example.org:5280/admin/| to
|
|
administer all virtual hosts or to
|
|
\verb|http://example.org:5280/admin/server/two.org/| to administer only the
|
|
virtual host \jid{two.org}. Before you get access to the web interface you
|
|
need to enter as username, the JID and password from a registered user that is
|
|
allowed to configure \ejabberd{}. In this example you can enter as username
|
|
``\jid{admin@one.org}'' to administer all virtual hosts (first URL). If you
|
|
log in with ``\jid{admin@two.org}'' on \\
|
|
\verb|http://example.org:5280/admin/server/two.org/| you can only administer
|
|
the virtual host \jid{two.org}.
|
|
\begin{verbatim}
|
|
...
|
|
{acl, admins, {user, "admin", "one.org"}}.
|
|
{host_config, "two.org", [{acl, admins, {user, "admin", "two.org"}}]}.
|
|
{access, configure, [{allow, admins}]}.
|
|
...
|
|
{hosts, ["example.org"]}.
|
|
...
|
|
{listen,
|
|
[...
|
|
{5280, ejabberd_http, [http_poll, web_admin]},
|
|
...
|
|
]
|
|
}.
|
|
\end{verbatim}
|
|
\item For security reasons, you can serve the web interface on a secured
|
|
connection, on a port differing from the HTTP Polling interface, and bind it
|
|
to the internal LAN IP. The web interface will be accessible by pointing your
|
|
web browser to \verb|https://192.168.1.1:5280/admin/|:
|
|
\begin{verbatim}
|
|
...
|
|
{hosts, ["example.org"]}.
|
|
...
|
|
{listen,
|
|
[...
|
|
{5270, ejabberd_http, [http_poll]},
|
|
{5280, ejabberd_http, [web_admin, {ip, {192, 168, 1, 1}},
|
|
tls, {certfile, "/usr/local/etc/server.pem"}]},
|
|
...
|
|
]
|
|
}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsubsection{\term{ejabberdctl}}
|
|
\label{sec:ejabberdctl}
|
|
|
|
It is possible to do some administration operations using the command
|
|
line tool \term{ejabberdctl}. You can list all available options by
|
|
running \term{ejabberdctl} without arguments:
|
|
\begin{verbatim}
|
|
% ejabberdctl
|
|
Usage: ejabberdctl node command
|
|
|
|
Available commands:
|
|
status get ejabberd status
|
|
stop stop ejabberd
|
|
restart restart ejabberd
|
|
reopen-log reopen log file
|
|
register user server password register a user
|
|
unregister user server unregister a user
|
|
backup file store a database backup to file
|
|
restore file restore a database backup from file
|
|
install-fallback file install a database fallback from file
|
|
dump file dump a database to a text file
|
|
load file restore a database from a text file
|
|
import-file file import user data from jabberd 1.4 spool file
|
|
import-dir dir import user data from jabberd 1.4 spool directory
|
|
registered-users list all registered users
|
|
delete-expired-messages delete expired offline messages from database
|
|
|
|
Example:
|
|
ejabberdctl ejabberd@host restart
|
|
\end{verbatim}
|
|
|
|
Additional information:
|
|
\begin{description}
|
|
\titem{reopen-log } If you use a tool to rotate logs, you have to configure it
|
|
so that this command is executed after each rotation.
|
|
\titem {backup, restore, install-fallback, dump, load} You can use these
|
|
commands to create and restore backups.
|
|
%%More information about backuping can
|
|
%% be found in section~\ref{sec:backup}.
|
|
\titem{import-file, import-dir} \ind{migration!from jabberd 1.4}\ind{migration!from jabberd2}
|
|
These options can be used to migrate from other \Jabber{}/XMPP servers. There
|
|
exist tutorials to \footahref{http://ejabberd.jabber.ru/jabberd1-to-ejabberd}{migrate from jabberd 1.4}
|
|
and to \footahref{http://ejabberd.jabber.ru/jabberd2-to-ejabberd}{migrate from jabberd2}.
|
|
\titem{delete-expired-messages} This option can be used to delete old messages
|
|
in offline storage. This might be useful when the number of offline messages
|
|
is very high.
|
|
\end{description}
|
|
|
|
|
|
\section{Firewall Settings}
|
|
\label{sec:firewall}
|
|
\ind{firewall}\ind{ports}\ind{SASL}\ind{TLS}\ind{clustering!ports}
|
|
|
|
You need to take the following ports in mind when configuring your firewall:
|
|
\begin{table}[H]
|
|
\centering
|
|
\begin{tabular}{|l|l|}
|
|
\hline Port& Description\\
|
|
\hline \hline 5222& SASL and unencrypted c2s connections.\\
|
|
\hline 5223& Obsolete SSL c2s connections.\\
|
|
\hline 5269& s2s connections.\\
|
|
\hline 4369& Only for clustering (see~\ref{sec:clustering}).\\
|
|
\hline port range& Only for clustring (see~\ref{sec:clustering}). This range
|
|
is configurable (see~\ref{sec:starting}).\\
|
|
\hline
|
|
\end{tabular}
|
|
\end{table}
|
|
|
|
|
|
\section{SRV Records}
|
|
\label{sec:srv}
|
|
\ind{SRV Records}\ind{clustering!SRV Records}
|
|
|
|
\begin{itemize}
|
|
\item General information:
|
|
\footahref{http://en.wikipedia.org/wiki/SRV\_record}{SRV record}
|
|
\item Practical information:
|
|
\footahref{http://jabberd.jabberstudio.org/2/docs/section05.html\#5\_7}{Setting DNS SRV Records}
|
|
\end{itemize}
|
|
|
|
|
|
\section{Clustering}
|
|
\label{sec:clustering}
|
|
\ind{clustering}
|
|
|
|
\subsection{How it Works}
|
|
\label{sec:howitworks}
|
|
\ind{clustering!how it works}
|
|
|
|
A \Jabber{} domain is served by one or more \ejabberd{} nodes. These nodes can
|
|
be run on different machines that are connected via a network. They all
|
|
must have the ability to connect to port 4369 of all another nodes, and must
|
|
have the same magic cookie (see Erlang/OTP documentation, in other words the
|
|
file \term{\~{}ejabberd/.erlang.cookie} must be the same on all nodes). This is
|
|
needed because all nodes exchange information about connected users, s2s
|
|
connections, registered services, etc\ldots
|
|
|
|
Each \ejabberd{} node has the following modules:
|
|
\begin{itemize}
|
|
\item router,
|
|
\item local router,
|
|
\item session manager,
|
|
\item s2s manager.
|
|
\end{itemize}
|
|
|
|
\subsubsection{Router}
|
|
\ind{clustering!router}
|
|
|
|
This module is the main router of \Jabber{} packets on each node. It
|
|
routes them based on their destination's domains. It uses a global
|
|
routing table. The domain of the packet's destination is searched in the
|
|
routing table, and if it is found, the packet is routed to the
|
|
appropriate process. If not, it is sent to the s2s manager.
|
|
|
|
\subsubsection{Local Router}
|
|
\ind{clustering!local router}
|
|
|
|
This module routes packets which have a destination domain equal to
|
|
one of this server's host names. If the destination JID has a non-empty user
|
|
part, it is routed to the session manager, otherwise it is processed depending
|
|
on its content.
|
|
|
|
\subsubsection{Session Manager}
|
|
\ind{clustering!session manager}
|
|
|
|
This module routes packets to local users. It looks up to which user
|
|
resource a packet must be sent via a presence table. Then the packet is
|
|
either routed to the appropriate c2s process, or stored in offline
|
|
storage, or bounced back.
|
|
|
|
\subsubsection{s2s Manager}
|
|
\ind{clustering!s2s manager}
|
|
|
|
This module routes packets to other \Jabber{} servers. First, it
|
|
checks if an opened s2s connection from the domain of the packet's
|
|
source to the domain of the packet's destination exists. If that is the case,
|
|
the s2s manager routes the packet to the process
|
|
serving this connection, otherwise a new connection is opened.
|
|
|
|
\subsection{Clustering Setup}
|
|
\label{sec:cluster}
|
|
\ind{clustering!setup}
|
|
|
|
Suppose you already configured \ejabberd{} on one machine named (\term{first}),
|
|
and you need to setup another one to make an \ejabberd{} cluster. Then do
|
|
following steps:
|
|
|
|
\begin{enumerate}
|
|
\item Copy \verb|~ejabberd/.erlang.cookie| file from \term{first} to
|
|
\term{second}.
|
|
|
|
(alt) You can also add ``\verb|-cookie content_of_.erlang.cookie|''
|
|
option to all ``\shell{erl}'' commands below.
|
|
|
|
\item On \term{second} run as the `\term{ejabberd}' user in the directory
|
|
where \ejabberd{} will work later the following command:
|
|
|
|
\begin{verbatim}
|
|
erl -sname ejabberd \
|
|
-mnesia extra_db_nodes "['ejabberd@first']" \
|
|
-s mnesia
|
|
\end{verbatim}
|
|
|
|
This will start Mnesia serving the same database as \node{ejabberd@first}.
|
|
You can check this by running the command ``\verb|mnesia:info().|''. You
|
|
should see a lot of remote tables and a line like the following:
|
|
|
|
\begin{verbatim}
|
|
running db nodes = [ejabberd@first, ejabberd@second]
|
|
\end{verbatim}
|
|
|
|
|
|
\item Now run the following in the same ``\shell{erl}'' session:
|
|
|
|
\begin{verbatim}
|
|
mnesia:change_table_copy_type(schema, node(), disc_copies).
|
|
\end{verbatim}
|
|
|
|
This will create local disc storage for the database.
|
|
|
|
(alt) Change storage type of `\term{scheme}' table to ``RAM and disc
|
|
copy'' on the second node via the web interface.
|
|
|
|
|
|
\item Now you can add replicas of various tables to this node with
|
|
``\verb|mnesia:add_table_copy|'' or
|
|
``\verb|mnesia:change_table_copy_type|'' as above (just replace
|
|
``\verb|schema|'' with another table name and ``\verb|disc_copies|''
|
|
can be replaced with ``\verb|ram_copies|'' or
|
|
``\verb|disc_only_copies|'').
|
|
|
|
Which tables to replicate is very dependant on your needs, you can get
|
|
some hints from the command ``\verb|mnesia:info().|'', by looking at the
|
|
size of tables and the default storage type for each table on 'first'.
|
|
|
|
Replicating a table makes lookups in this table faster on this node.
|
|
Writing, on the other hand, will be slower. And of course if machine with one
|
|
of the replicas is down, other replicas will be used.
|
|
|
|
Also \footahref{http://www.erlang.se/doc/doc-5.4.9/lib/mnesia-4.2.2/doc/html/Mnesia\_chap5.html\#5.3}
|
|
{section 5.3 (Table Fragmentation) of Mnesia User's Guide} can be helpful.
|
|
% The above URL needs update every Erlang release!
|
|
|
|
(alt) Same as in previous item, but for other tables.
|
|
|
|
|
|
\item Run ``\verb|init:stop().|'' or just ``\verb|q().|'' to exit from
|
|
the Erlang shell. This probably can take some time if Mnesia has not yet
|
|
transfered and processed all data it needed from \term{first}.
|
|
|
|
|
|
\item Now run \ejabberd{} on \term{second} with almost the same config as
|
|
on \term{first} (you probably don't need to duplicate ``\verb|acl|''
|
|
and ``\verb|access|'' options --- they will be taken from
|
|
\term{first}, and \verb|mod_muc| and \verb|mod_irc| should be
|
|
enabled only on one machine in the cluster).
|
|
\end{enumerate}
|
|
|
|
You can repeat these steps for other machines supposed to serve this
|
|
domain.
|
|
|
|
% TODO
|
|
% See also the section about ejabberdctl!!!!
|
|
%\section{Backup and Restore}
|
|
%\label{sec:backup}
|
|
%\ind{backup}
|
|
|
|
\appendix{}
|
|
|
|
\section{Built-in Modules}
|
|
\label{sec:modules}
|
|
\ind{modules}
|
|
|
|
\subsection{Common Options}
|
|
\label{sec:modcommonopts}
|
|
|
|
The following options are used by many modules. Therefore, they are described in
|
|
this separate section.
|
|
|
|
\subsubsection{\option{iqdisc}}
|
|
\label{sec:modiqdiscoption}
|
|
\ind{options!iqdisc}
|
|
|
|
Many modules define handlers for processing IQ queries of different namespaces
|
|
to this server or to a user (e.\,g.\ to \jid{example.org} or to
|
|
\jid{user@example.org}). This option defines processing discipline for
|
|
these queries. Possible values are:
|
|
\begin{description}
|
|
\titem{no\_queue} All queries of a namespace with this processing discipline are
|
|
processed immediately. This also means that no other packets can be processed
|
|
until this one has been completely processed. Hence this discipline is not
|
|
recommended if the processing of a query can take a relatively long time.
|
|
\titem{one\_queue} In this case a separate queue is created for the processing
|
|
of IQ queries of a namespace with this discipline. In addition, the processing
|
|
of this queue is done in parallel with that of other packets. This discipline
|
|
is most recommended.
|
|
\titem{parallel} For every packet with this discipline a separate Erlang process
|
|
is spawned. Consequently, all these packets are processed in parallel.
|
|
Although spawning of Erlang process has a relatively low cost, this can break
|
|
the server's normal work, because the Erlang emulator has a limit on the
|
|
number of processes (32000 by default).
|
|
\end{description}
|
|
|
|
Example:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_time, [{iqdisc, no_queue}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
|
|
\subsubsection{\option{hosts}}
|
|
\label{sec:modhostsoption}
|
|
\ind{options!hosts}
|
|
|
|
A module acting as a service can have one or more hostnames. These hostnames
|
|
can be defined with the \option{hosts} option.
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item Serving the \ind{modules!\modecho{}}echo module on one domain:
|
|
\begin{itemize}
|
|
\item
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_echo, [{hosts, ["echo.example.org"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item Backwards compatibility with older ejabberd versions can be retained
|
|
with:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_echo, [{host, "echo.example.org"}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
\item Serving the echo module on tho domains:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_echo, [{hosts, ["echo.one.org", "echo.two.org"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\modannounce{}}
|
|
\label{sec:modannounce}
|
|
\ind{modules!\modannounce{}}\ind{MOTD}\ind{message of the day}\ind{announcements}
|
|
|
|
This module enables configured users to broadcast announcements and to set
|
|
the message of the day (MOTD). Configured users can do these actions with their
|
|
\Jabber{} client by sending messages to specific JIDs. These JIDs are listed in
|
|
next paragraph. The first JID in each entry will apply only to the virtual host
|
|
\jid{example.org}, while the JID between brackets will apply to all virtual
|
|
hosts:
|
|
\begin{description}
|
|
\titem{example.org/announce/all (example.org/announce/all-hosts/all)} The
|
|
message is sent to all registered users. If the user is online and connected
|
|
to several resources, only the resource with the highest priority will receive
|
|
the message. If the registered user is not connected, the message will be
|
|
stored offline in assumption that \ind{modules!\modoffline{}}offline storage
|
|
(see section~\ref{sec:modoffline}) is enabled.
|
|
\titem{example.org/announce/online (example.org/announce/all-hosts/online)}The
|
|
message is sent to all connected users. If the user is online and connected
|
|
to several resources, all resources will receive the message.
|
|
\titem{example.org/announce/motd (example.org/announce/all-hosts/motd)}The
|
|
message is set as the message of the day (MOTD) and is sent to users when they
|
|
login. In addition the message is sent to all connected users (similar to
|
|
\term{announce/online}).
|
|
\titem{example.org/announce/motd/update (example.org/announce/all-hosts/motd/update)}
|
|
The message is set as message of the day (MOTD) and is sent to users when they
|
|
login. The message is \emph{not sent} to any currently connected user.
|
|
\titem{example.org/announce/motd/delete (example.org/announce/all-hosts/motd/delete)}
|
|
Any message sent to this JID removes the existing message of the day (MOTD).
|
|
\end{description}
|
|
|
|
Options:
|
|
\begin{description}
|
|
\titem{access} \ind{options!access}This option specifies who is allowed to
|
|
send announcements and to set the message of the day (by default, nobody is
|
|
able to send such messages).
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item Only administrators can send announcements:
|
|
\begin{verbatim}
|
|
{access, announce, [{allow, admins}]}.
|
|
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_announce, [{access, announce}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item Administrators as well as the direction can send announcements:
|
|
\begin{verbatim}
|
|
{acl, direction, {user, "big_boss", "example.org"}}.
|
|
{acl, direction, {user, "assistant", "example.org"}}.
|
|
{acl, admins, {user, "admin", "example.org"}}.
|
|
...
|
|
{access, announce, [{allow, admins},
|
|
{allow, direction}]}.
|
|
...
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_announce, [{access, announce}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\moddisco{}}
|
|
\label{sec:moddisco}
|
|
\ind{modules!\moddisco{}}\ind{protocols!JEP-0030: Service Discovery}\ind{protocols!JEP-0011: Jabber Browsing}\ind{protocols!JEP-0094: Agent Information}
|
|
|
|
This module adds support for Service Discovery (\jepref{0030}). With
|
|
this module enabled, services on your server can be discovered by
|
|
\Jabber{} clients. Note that \ejabberd{} has no modules with support
|
|
for the superseded Jabber Browsing (\jepref{0011}) and Agent Information
|
|
(\jepref{0094}). Accordingly, \Jabber{} clients need to have support for
|
|
the newer Service Discovery protocol if you want them be able to discover
|
|
the services you offer.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Service Discovery (\ns{http://jabber.org/protocol/disco\#items} and
|
|
\ns{http://jabber.org/protocol/disco\#info})}
|
|
\titem{extra\_domains} \ind{options!extra\_domains}With this option,
|
|
extra domains can be added to the Service Discovery item list.
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item To serve a link to the Jabber User Directory on \jid{jabber.org}:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_disco, [{extra_domains, ["users.jabber.org"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item To serve a link to the transports on another server:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_disco, [{extra_domains, ["icq.example.com",
|
|
"msn.example.com"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item To serve a link to a few friendly servers:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_disco, [{extra_domains, ["example.org",
|
|
"example.com"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
|
|
\subsection{\modecho{}}
|
|
\label{sec:modecho}
|
|
\ind{modules!\modecho{}}\ind{debugging}
|
|
|
|
This module simply echoes any \Jabber{}
|
|
packet back to the sender. This mirror can be of interest for
|
|
\ejabberd{} and \Jabber{} client debugging.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\hostitem{echo}
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item Mirror, mirror, on the wall, who is the most beautiful
|
|
of them all?
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_echo, [{hosts, ["mirror.example.org"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item If you still do not understand the inner workings of \modecho{},
|
|
you can find a few more examples in section~\ref{sec:modhostsoption}.
|
|
\end{itemize}
|
|
|
|
\subsection{\modirc{}}
|
|
\label{sec:modirc}
|
|
\ind{modules!\modirc{}}\ind{IRC}
|
|
|
|
This module is an IRC transport that can be used to join channels on IRC
|
|
servers.
|
|
|
|
End user information:
|
|
\ind{protocols!groupchat 1.0}\ind{protocols!JEP-0045: Multi-User Chat}
|
|
\begin{itemize}
|
|
\item A \Jabber{} client with ``groupchat 1.0'' support or Multi-User
|
|
Chat support (\jepref{0045}) is necessary to join IRC channels.
|
|
\item An IRC channel can be joined in nearly the same way as joining a
|
|
\Jabber{} Multi-User Chat room. The difference is that the room name will
|
|
be ``channel\%\jid{irc.example.org}'' in case \jid{irc.example.org} is
|
|
the IRC server hosting ``channel''. And of course the host should point
|
|
to the IRC transport instead of the Multi-User Chat service.
|
|
\item You can register your nickame by sending ``IDENTIFY password'' to \\
|
|
\jid{nickserver!irc.example.org@irc.jabberserver.org}.
|
|
\item Entering your password is possible by sending ``LOGIN nick password'' \\
|
|
to \jid{nickserver!irc.example.org@irc.jabberserver.org}.
|
|
\item When using a popular \Jabber{} server, it can occur that no
|
|
connection can be achieved with some IRC servers because they limit the
|
|
number of conections from one IP.
|
|
\end{itemize}
|
|
|
|
Options:
|
|
\begin{description}
|
|
\hostitem{irc}
|
|
\titem{access} \ind{options!access}This option can be used to specify who
|
|
may use the IRC transport (default value: \term{all}).
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item In the first example, the IRC transport is available on (all) your
|
|
virtual host(s) with the prefix ``\jid{irc.}''. Furthermore, anyone is
|
|
able to use the transport.
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_irc, [{access, all}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
% bug in current svn!!: irc-transport.two.org will *not* show up in the service discovery items; instead you will see irc.two.org!!!!
|
|
\item In next example the IRC transport is available on two virtual hosts
|
|
with different prefixes on each host. Moreover, the transport is only
|
|
accessible by paying customers registered on our domains and on other servers.
|
|
\begin{verbatim}
|
|
{acl, paying_customers, {user, "customer1", "one.org"}}.
|
|
{acl, paying_customers, {user, "customer2", "two.org"}}.
|
|
{acl, paying_customers, {user, "customer3", "example.org"}}.
|
|
...
|
|
{access, paying_customers, [{allow, paying_customers},
|
|
{deny, all}]}.
|
|
...
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_irc, [{access, paying_customers},
|
|
{hosts, ["irc.one.org", "irc-transport.two.org"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\modlast{}}
|
|
\label{sec:modlast}
|
|
\ind{modules!\modlast{}}\ind{protocols!JEP-0012: Last Activity}
|
|
|
|
This module adds support for Last Activity (\jepref{0012}). It can be used to
|
|
discover when a disconnected user last accessed the server, to know when a
|
|
connected user was last active on the server, or to query the uptime of the
|
|
\ejabberd{} server.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Last activity (\ns{jabber:iq:last})}
|
|
\end{description}
|
|
|
|
\subsection{\modmuc{}}
|
|
\label{sec:modmuc}
|
|
\ind{modules!\modmuc{}}\ind{protocols!JEP-0045: Multi-User Chat}\ind{conferencing}
|
|
|
|
With this module enabled, your server will support Multi-User Chat
|
|
(\jepref{0045}). End users will be able to join text conferences. Notice
|
|
that this module is not (yet) clusterable.
|
|
|
|
|
|
Some of the features of Multi-User Chat:
|
|
\begin{itemize}
|
|
\item Sending private messages to room participants.
|
|
\item Inviting users.
|
|
\item Setting a conference topic.
|
|
\item Creating password protected rooms.
|
|
\item Kicking and banning participants.
|
|
\end{itemize}
|
|
|
|
Options:
|
|
\begin{description}
|
|
\hostitem{conference}
|
|
\titem{access} \ind{options!access}You can specify who is allowed to use
|
|
the Multi-User Chat service (by default, everyone is allowed to use it).
|
|
\titem{access\_create} \ind{options!access\_create}To configure who is
|
|
allowed to create new rooms at the Multi-User Chat service, this option
|
|
can be used (by default, everybody is allowed to create rooms).
|
|
\titem{access\_admin} \ind{options!access\_admin}This option specifies
|
|
who is allowed to administrate the Multi-User Chat service (the default
|
|
value is \term{none}, which means that only the room creator can
|
|
administer his room).
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item In the first example everyone is allowed to use the Multi-User Chat
|
|
service. Everyone will also be able to create new rooms but only the user
|
|
\jid{admin@example.org} is allowed to administrate any room. In this
|
|
example he is also a global administrator.
|
|
\begin{verbatim}
|
|
{acl, admins, {user, "admin", "example.org"}}.
|
|
...
|
|
{access, muc_admins, [{allow, admins}]}.
|
|
...
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_muc, [{access, all},
|
|
{access_create, all},
|
|
{access_admin, muc_admins}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item In the second example the Multi-User Chat service is only accessible by
|
|
paying customers registered on our domains and on other servers. Of course
|
|
the administrator is also allowed to access rooms. In addition, he is the
|
|
only authority able to create and administer rooms.
|
|
\begin{verbatim}
|
|
{acl, paying_customers, {user, "customer1", "one.org"}}.
|
|
{acl, paying_customers, {user, "customer2", "two.org"}}.
|
|
{acl, paying_customers, {user, "customer3", "example.org"}}.
|
|
{acl, admins, {user, "admin", "example.org"}}.
|
|
...
|
|
{access, muc_admins, [{allow, admins},
|
|
{deny, all}]}.
|
|
{access, muc_access, [{allow, paying_customers},
|
|
{allow, admins},
|
|
{deny, all}]}.
|
|
...
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_muc, [{access, muc_access},
|
|
{access_create, muc_admins},
|
|
{access_admin, muc_admins}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\modmuclog{}}
|
|
\label{sec:modmuclog}
|
|
\ind{modules!\modmuclog{}}
|
|
|
|
This module enables optional logging of Multi-User Chat conversations to HTML.
|
|
Once you enable this module, join a chatroom with enought privileges using a MUC capable Jabber client,
|
|
request the configuration form and there you will have an option to enable chatroom logging.
|
|
|
|
Some of the features of generated logs:
|
|
\begin{itemize}
|
|
\item A lot of information about chatroom is added on top of the page: Room title, JID, subject author, subject and configuration.
|
|
\item Room title and JID are links to join the chatroom (using XMPP-IRI).
|
|
\item Subject and chatroom configuration changes are tracked and displayed.
|
|
\item Joins, leaves, nick changes, kicks, bans and /me are tracked and displayed, including the reason when available.
|
|
\item Generated HTML files are XHTML 1.0 Transitional and CSS compliant.
|
|
\item Timestamps are self-referencing links.
|
|
\item Links on top for quicker navigation: Previous day, Next day, Up.
|
|
\item CSS is used for style definition, and a custom CSS file can be used.
|
|
\item URLs on messages and subjects are converted to hyperlinks.
|
|
\item Timezone used on timestamps is shown on the log files.
|
|
\item A custom link can be added on top of page.
|
|
\end{itemize}
|
|
|
|
Options:
|
|
\begin{description}
|
|
\titem{access\_log}\ind{options!access\_log}
|
|
Restricts which users are allowed to enable or disable chatroom logging using ACL and ACCESS.
|
|
Default: \term{muc\_admin}.
|
|
If you want to allow any chatroom owner put: \term{muc}.
|
|
\titem{cssfile}\ind{options!cssfile}
|
|
If HTMLs will use a custom CSS file or the embedded one.
|
|
Allowed values:
|
|
\term{false}: HTMLs will include the standard CSS code;
|
|
\term{"CSS-URL"}: the URL of the CSS file (for example: "http://example.com/my.css").
|
|
Default: \term{false}.
|
|
\titem{dirtype}\ind{options!dirtype}
|
|
Type of directory that will be created.
|
|
Allowed values:
|
|
\term{subdirs}: creates subdirectories for year and month;
|
|
\term{plain}: the filename contains the full date, no subdirs.
|
|
Default: \term{subdirs}.
|
|
\titem{outdir}\ind{options!outdir}
|
|
Full path to the directory where html will be generated.
|
|
Make sure the system user has write access on that directory.
|
|
Default: \term{"www/muc"}.
|
|
\titem{timezone}\ind{options!timezone}
|
|
What timezone should be used.
|
|
Allowed values:
|
|
\term{local}: use local time, as reported to Erlang by the operating system;
|
|
\term{universal}: use GMT/UTC time.
|
|
Default: \term{local}.
|
|
\titem{top\_link}\ind{options!top\_link}
|
|
Customizable link on top right corner. Syntax of this option: \term{\{"URL", "Text"\}}.
|
|
Default: \term{\{"/", "Home"\}}.
|
|
\end{description}
|
|
|
|
Example configuration:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_muc_log, [
|
|
{access_log, muc},
|
|
{cssfile, "http://example.com/my.css"},
|
|
{dirtype, plain},
|
|
{outdir, "/var/www/muclogs"},
|
|
{timezone, universal},
|
|
{top_link, {"http://www.jabber.ru", "Jabber.ru"}}
|
|
]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
|
|
\subsection{\modoffline{}}
|
|
\label{sec:modoffline}
|
|
\ind{modules!\modoffline{}}
|
|
|
|
This module implements offline message storage. This means that all messages
|
|
sent to an offline user will be stored on the server until that user comes
|
|
online again. Thus it is very similar to how email works. Note that
|
|
\term{ejabberdctl}\ind{ejabberdctl} has a command to delete expired messages
|
|
(see section~\ref{sec:ejabberdctl}).
|
|
|
|
\subsection{\modprivacy{}}
|
|
\label{sec:modprivacy}
|
|
\ind{modules!\modprivacy{}}\ind{Blocking Communication}\ind{Privacy Rules}\ind{protocols!RFC 3921: XMPP IM}
|
|
|
|
This module implements Blocking Communication (also known as Privacy Rules)
|
|
as defined in section 10 from XMPP IM. If end users have support for it in
|
|
their \Jabber{} client, they will be able to:
|
|
\begin{quote}
|
|
\begin{itemize}
|
|
\item Retrieving one's privacy lists.
|
|
\item Adding, removing, and editing one's privacy lists.
|
|
\item Setting, changing, or declining active lists.
|
|
\item Setting, changing, or declining the default list (i.e., the list that
|
|
is active by default).
|
|
\item Allowing or blocking messages based on JID, group, or subscription type
|
|
(or globally).
|
|
\item Allowing or blocking inbound presence notifications based on JID, group,
|
|
or subscription type (or globally).
|
|
\item Allowing or blocking outbound presence notifications based on JID, group,
|
|
or subscription type (or globally).
|
|
\item Allowing or blocking IQ stanzas based on JID, group, or subscription type
|
|
(or globally).
|
|
\item Allowing or blocking all communications based on JID, group, or
|
|
subscription type (or globally).
|
|
\end{itemize}
|
|
(from \ahrefurl{http://www.xmpp.org/specs/rfc3921.html\#privacy})
|
|
\end{quote}
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Blocking Communication (\ns{jabber:iq:privacy})}
|
|
\end{description}
|
|
|
|
\subsection{\modprivate{}}
|
|
\label{sec:modprivate}
|
|
\ind{modules!\modprivate{}}\ind{protocols!JEP-0049: Private XML Storage}\ind{protocols!JEP-0048: Bookmark Storage}
|
|
|
|
This module adds support for Private XML Storage (\jepref{0049}):
|
|
\begin{quote}
|
|
Using this method, Jabber entities can store private data on the server and
|
|
retrieve it whenever necessary. The data stored might be anything, as long as
|
|
it is valid XML. One typical usage for this namespace is the server-side storage
|
|
of client-specific preferences; another is Bookmark Storage (\jepref{0048}).
|
|
\end{quote}
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Private XML Storage (\ns{jabber:iq:private})}
|
|
\end{description}
|
|
|
|
\subsection{\modpubsub{}}
|
|
\label{sec:modpubsub}
|
|
\ind{modules!\modpubsub{}}\ind{protocols!JEP-0060: Publish-Subscribe}
|
|
|
|
This module offers a Publish-Subscribe Service (\jepref{0060}).
|
|
Publish-Subscribe can be used to develop (examples are taken from the JEP):
|
|
\begin{quote}
|
|
\begin{itemize}
|
|
\item news feeds and content syndacation,
|
|
\item avatar management,
|
|
\item shared bookmarks,
|
|
\item auction and trading systems,
|
|
\item online catalogs,
|
|
\item workflow systems,
|
|
\item network management systems,
|
|
\item NNTP gateways,
|
|
\item vCard/profile management,
|
|
\item and weblogs.
|
|
\end{itemize}
|
|
\end{quote}
|
|
|
|
\ind{J-EAI}\ind{EAI}\ind{ESB}\ind{Enterprise Application Integration}\ind{Enterprise Service Bus}
|
|
Another example is \footahref{http://www.process-one.net/en/projects/j-eai/}{J-EAI}.
|
|
This is an XMPP-based Enterprise Application Integration (EAI) platform (also
|
|
known as ESB, the Enterprise Service Bus). The J-EAI project builts upon
|
|
\ejabberd{}'s codebase and has contributed several features to \modpubsub{}.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\hostitem{pubsub}
|
|
\titem{served\_hosts} \ind{options!served\_hosts}To specify which hosts needs to
|
|
be served, you can use this option. If absent, only the main \ejabberd{}
|
|
host is served. % Not a straigtforward description! This needs to be improved!
|
|
\end{description}
|
|
|
|
Example:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_pubsub, [{served_hosts, ["example.com",
|
|
"example.org"]}]}
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
|
|
\subsection{\modregister{}}
|
|
\label{sec:modregister}
|
|
\ind{modules!\modregister{}}\ind{protocols!JEP-0077: In-Band Registration}\ind{public registration}
|
|
|
|
This module adds support for In-Band Registration (\jepref{0077}). This protocol
|
|
enables end users to use a \Jabber{} client to:
|
|
\begin{itemize}
|
|
\item Register a new account on the server.
|
|
\item Change the password from an existing account on the server.
|
|
\item Delete an existing account on the server.
|
|
\end{itemize}
|
|
|
|
|
|
Options:
|
|
\begin{description}
|
|
\titem{access} \ind{options!access}This option can be configured to specify
|
|
rules to restrict registration. If a rule returns ``deny'' on the requested
|
|
user name, registration for that user name is dennied. (there are no
|
|
restrictions by default).
|
|
\iqdiscitem{In-Band Registration (\ns{jabber:iq:register})}
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item Next example prohibits the registration of too short account names and of
|
|
account names with exotic characters in it:
|
|
\begin{verbatim}
|
|
{acl, shortname, {user_glob, "?"}}.
|
|
{acl, shortname, {user_glob, "??"}}.
|
|
{acl, strangename, {user_regexp, "^..?$"}}.
|
|
...
|
|
{access, register, [{deny, shortname},
|
|
{deny, strangename},
|
|
{allow, all}]}.
|
|
...
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_register, [{access, register}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item The in-band registration of new accounts can be prohibited by changing the
|
|
\option{access} option. If you really want to disable all In-Band Registration
|
|
functionality, that is changing passwords in-band and deleting accounts
|
|
in-band, you have to remove \modregister{} from the modules list. In this
|
|
example all In-Band Registration functionality is disabled:
|
|
\begin{verbatim}
|
|
{access, register, [{deny, all}]}.
|
|
|
|
{modules,
|
|
[
|
|
...
|
|
% {mod_register, [{access, register}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\modroster{}}
|
|
\label{sec:modroster}
|
|
\ind{modules!\modroster{}}\ind{roster management}\ind{protocols!RFC 3921: XMPP IM}
|
|
|
|
This module implements roster management as defined in \footahref{http://www.xmpp.org/specs/rfc3921.html\#roster}{RFC 3921: XMPP IM}.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Roster Management (\ns{jabber:iq:roster})}
|
|
\end{description}
|
|
|
|
\subsection{\modservicelog{}}
|
|
\label{sec:modservicelog}
|
|
\ind{modules!\modservicelog{}}\ind{message auditing}\ind{Bandersnatch}
|
|
|
|
This module adds support for logging end user packets via a \Jabber{} message
|
|
auditing service such as
|
|
\footahref{http://www.funkypenguin.co.za/bandersnatch/}{Bandersnatch}. All user
|
|
packets are encapsulated in a \verb|<route/>| element and sent to the specified
|
|
service(s).
|
|
|
|
Options:
|
|
\begin{description}
|
|
\titem{loggers} \ind{options!loggers}With this option a (list of) service(s)
|
|
that will receive the packets can be specified.
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item To log all end user packets to the Bandersnatch service running on
|
|
\jid{bandersnatch.example.com}:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_service_log, [{loggers, ["bandersnatch.example.com"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item To log all end user packets to the Bandersnatch service running on
|
|
\jid{bandersnatch.example.com} and the backup service on
|
|
\jid{bandersnatch.example.org}:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_service_log, [{loggers, ["bandersnatch.example.com",
|
|
"bandersnatch.example.org"]}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\modsharedroster{}}
|
|
\label{sec:modsharedroster}
|
|
\ind{modules!\modsharedroster{}}\ind{shared roster groups}
|
|
|
|
This module enables you to create shared roster groups. This means that you can
|
|
create groups of people that can see members from (other) groups in their
|
|
rosters. The big advantages of this feature are that end users do not need to
|
|
manually add all users to their rosters, and that they cannot permanently delete
|
|
users from the shared roster groups.
|
|
|
|
Shared roster groups can be edited \emph{only} via the web interface. Each group
|
|
has a unique identification and the following parameters:
|
|
\begin{description}
|
|
\item[Name] The name of the group, which will be displayed in the roster.
|
|
\item[Description] The description of the group. This parameter doesn't affect
|
|
anything.
|
|
\item[Members] A list of full JIDs of group members, entered one per line in
|
|
the web interface.
|
|
\item[Displayed groups] A list of groups that will be in the rosters of this
|
|
group's members.
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item Take the case of a computer club that wants all its members seeing each
|
|
other in their rosters. To achieve this, they need to create a shared roster
|
|
group similar to next table:
|
|
\begin{table}[H]
|
|
\centering
|
|
\begin{tabular}{|l|l|}
|
|
\hline Identification& Group `\texttt{club\_members}'\\
|
|
\hline Name& Club Members\\
|
|
\hline Description& Members from the computer club\\
|
|
\hline Members&
|
|
{\begin{tabular}{l}
|
|
\jid{member1@example.org}\\
|
|
\jid{member2@example.org}\\
|
|
\jid{member3@example.org}
|
|
\end{tabular}
|
|
}\\
|
|
\hline Displayed groups& \texttt{club\_members}\\
|
|
\hline
|
|
\end{tabular}
|
|
\end{table}
|
|
\item In another case we have a company which has three divisions: Management,
|
|
Marketing and Sales. All group members should see all other members in their
|
|
rosters. Additonally, all managers should have all marketing and sales people
|
|
in their roster. Simultaneously, all marketeers and the whole sales team
|
|
should see all managers. This scenario can be achieved by creating shared
|
|
roster groups as shown in the following table:
|
|
\begin{table}[H]
|
|
\centering
|
|
\begin{tabular}{|l|l|l|l|}
|
|
\hline Identification&
|
|
Group `\texttt{management}'&
|
|
Group `\texttt{marketing}'&
|
|
Group `\texttt{sales}'\\
|
|
\hline Name& Management& Marketing& Sales\\
|
|
\hline Description& \\
|
|
Members&
|
|
{\begin{tabular}{l}
|
|
\jid{manager1@example.org}\\
|
|
\jid{manager2@example.org}\\
|
|
\jid{manager3@example.org}\\
|
|
\jid{manager4@example.org}
|
|
\end{tabular}
|
|
}&
|
|
{\begin{tabular}{l}
|
|
\jid{marketeer1@example.org}\\
|
|
\jid{marketeer2@example.org}\\
|
|
\jid{marketeer3@example.org}\\
|
|
\jid{marketeer4@example.org}
|
|
\end{tabular}
|
|
}&
|
|
{\begin{tabular}{l}
|
|
\jid{saleswoman1@example.org}\\
|
|
\jid{salesman1@example.org}\\
|
|
\jid{saleswoman2@example.org}\\
|
|
\jid{salesman2@example.org}
|
|
\end{tabular}
|
|
}\\
|
|
\hline Displayed groups&
|
|
{\begin{tabular}{l}
|
|
\texttt{management}\\
|
|
\texttt{marketing}\\
|
|
\texttt{sales}
|
|
\end{tabular}
|
|
}&
|
|
{\begin{tabular}{l}
|
|
\texttt{management}\\
|
|
\texttt{marketing}
|
|
\end{tabular}
|
|
}&
|
|
{\begin{tabular}{l}
|
|
\texttt{management}\\
|
|
\texttt{sales}
|
|
\end{tabular}
|
|
}\\
|
|
\hline
|
|
\end{tabular}
|
|
\end{table}
|
|
\end{itemize}
|
|
|
|
\subsection{\modstats{}}
|
|
\label{sec:modstats}
|
|
\ind{modules!\modstats{}}\ind{protocols!JEP-0039: Statistics Gathering}\ind{statistics}
|
|
|
|
This module adds support for Statistics Gathering (\jepref{0039}). This protocol
|
|
allows you to retrieve next statistics from your \ejabberd{} deployment:
|
|
\begin{itemize}
|
|
\item Total number of registered users on the current virtual host (users/total).
|
|
\item Total number of registered users on all virtual hosts (users/all-hosts/total).
|
|
\item Total number of online users on the current virtual host (users/online).
|
|
\item Total number of online users on all virtual hosts (users/all-hosts/online).
|
|
\end{itemize}
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Statistics Gathering (\ns{http://jabber.org/protocol/stats})}
|
|
\end{description}
|
|
|
|
As there are only a small amount of clients (for \ind{Tkabber}example
|
|
\footahref{http://tkabber.jabber.ru/}{Tkabber}) and software libraries with
|
|
support for this JEP, a few examples are given of the XML you need to send
|
|
in order to get the statistics. Here they are:
|
|
\begin{itemize}
|
|
\item You can request the number of online users on the current virtual host
|
|
(\jid{example.org}) by sending:
|
|
\begin{verbatim}
|
|
<iq to='example.org' type='get'>
|
|
<query xmlns='http://jabber.org/protocol/stats'>
|
|
<stat name='users/online'/>
|
|
</query>
|
|
</iq>
|
|
\end{verbatim}
|
|
\item You can request the total number of registered users on all virtual hosts
|
|
by sending:
|
|
\begin{verbatim}
|
|
<iq to='example.org' type='get'>
|
|
<query xmlns='http://jabber.org/protocol/stats'>
|
|
<stat name='users/all-hosts/total'/>
|
|
</query>
|
|
</iq>
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\modtime{}}
|
|
\label{sec:modtime}
|
|
\ind{modules!\modtime{}}\ind{protocols!JEP-0090: Entity Time}
|
|
|
|
This module features support for Entity Time (\jepref{0090}). By using this JEP,
|
|
you are able to discover the time at another entity's location.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Entity Time (\ns{jabber:iq:time})}
|
|
\end{description}
|
|
|
|
\subsection{\modvcard{}}
|
|
\label{sec:modvcard}
|
|
\ind{modules!\modvcard{}}\ind{JUD}\ind{Jabber User Directory}\ind{vCard}\ind{protocols!JEP-0054: vcard-temp}
|
|
|
|
This module allows end users to store and retrieve their vCard, and to retrieve
|
|
other users vCards, as defined in vcard-temp (\jepref{0054}). The module also
|
|
implements an uncomplicated \Jabber{} User Directory based on the vCards of
|
|
these users. Moreover, it enables the server to send its vCard when queried.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\hostitem{vjud}
|
|
\iqdiscitem{\ns{vcard-temp}}
|
|
\titem{search} \ind{options!search}This option specifies whether the search
|
|
functionality is enabled (value: \term{true}) or disabled
|
|
(value: \term{false}). If disabled, the option \term{hosts} will be
|
|
ignored and the \Jabber{} User Directory service will not appear in the
|
|
Service Discovery item list. The default value is \term{true}.
|
|
\titem{matches} \ind{options!matches}With this option, the number of reported
|
|
search results can be limited. If the option's value is set to \term{infinity},
|
|
all search results are reported. The default value is \term{30}.
|
|
\titem{allow\_return\_all} \ind{options!allow\_return\_all}This option enables
|
|
you to specify if search operations with empty input fields should return
|
|
all users who added some information to their vCard. The default value is
|
|
\term{false}.
|
|
\titem{search\_all\_hosts} \ind{options!search\_all\_hosts}If this option is
|
|
set to \term{true}, search operations will apply to all virtual hosts.
|
|
Otherwise only the current host will be searched. The default value is
|
|
\term{true}.
|
|
\end{description}
|
|
|
|
Examples:
|
|
\begin{itemize}
|
|
\item In this first situation, search results are limited to twenty items,
|
|
every user who added information to their vCard will be listed when people
|
|
do an empty search, and only users from the current host will be returned:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_vcard, [{search, true},
|
|
{matches, 20},
|
|
{allow_return_all, true},
|
|
{search_all_hosts, false}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\item The second situation differs in a way that search results are not limited,
|
|
and that all virtual hosts will be searched instead of only the current one:
|
|
\begin{verbatim}
|
|
{modules,
|
|
[
|
|
...
|
|
{mod_vcard, [{search, true},
|
|
{matches, infinity},
|
|
{allow_return_all, true}]},
|
|
...
|
|
]}.
|
|
\end{verbatim}
|
|
\end{itemize}
|
|
|
|
\subsection{\modversion{}}
|
|
\label{sec:modversion}
|
|
\ind{modules!\modversion{}}\ind{protocols!JEP-0092: Software Version}
|
|
|
|
This module implements Software Version (\jepref{0092}). Consequently, it
|
|
answers \ejabberd{}'s version when queried.
|
|
|
|
Options:
|
|
\begin{description}
|
|
\iqdiscitem{Software Version (\ns{jabber:iq:version})}
|
|
\end{description}
|
|
|
|
|
|
\section{Internationalization and Localization}
|
|
\label{sec:i18nl10n}
|
|
\ind{xml:lang}\ind{internationalization}\ind{localization}\ind{i18n}\ind{l10n}
|
|
|
|
All built-in modules support the \texttt{xml:lang} attribute inside IQ queries.
|
|
Figure~\ref{fig:discorus}, for example, shows the reply to the following query:
|
|
\begin{verbatim}
|
|
<iq id='5'
|
|
to='example.org'
|
|
type='get'
|
|
xml:lang='ru'>
|
|
<query xmlns='http://jabber.org/protocol/disco#items'/>
|
|
</iq>
|
|
\end{verbatim}
|
|
|
|
\begin{figure}[htbp]
|
|
\centering
|
|
\insimg{discorus.png}
|
|
\caption{Service Discovery when \texttt{xml:lang='ru'}}
|
|
\label{fig:discorus}
|
|
\end{figure}
|
|
|
|
The web interface also supports the \verb|Accept-Language| HTTP header (compare
|
|
figure~\ref{fig:webadmmainru} with figure~\ref{fig:webadmmain})
|
|
|
|
\begin{figure}[htbp]
|
|
\centering
|
|
\insimg{webadmmainru.png}
|
|
\caption{Top page from the web interface with HTTP header
|
|
``Accept-Language: ru''}
|
|
\label{fig:webadmmainru}
|
|
\end{figure}
|
|
|
|
\newpage
|
|
\section{Release Notes}
|
|
\label{sec:releasenotes}
|
|
\ind{release notes}
|
|
|
|
\subsection{ejabberd 0.9}
|
|
\verbatiminput{release_notes_0.9.txt}
|
|
|
|
\subsection{ejabberd 0.9.1}
|
|
\verbatiminput{release_notes_0.9.1.txt}
|
|
|
|
\subsection{ejabberd 0.9.8}
|
|
\verbatiminput{release_notes_0.9.8.txt}
|
|
|
|
\subsection{ejabberd 1.0.0}
|
|
\verbatiminput{release_notes_1.0.0.txt}
|
|
|
|
|
|
\section{Acknowledgements}
|
|
\label{sec:acknowledgements}
|
|
\ind{acknowledgements}
|
|
Thanks to all people who contributed to this guide:
|
|
\begin{itemize}
|
|
\item Alexey Shchepin (\ahrefurl{xmpp:aleksey@jabber.ru})
|
|
\item Florian Zumbiehl (\ahrefurl{xmpp:florz@florz.de})
|
|
\item Michael Grigutsch (\ahrefurl{xmpp:migri@jabber.i-pobox.net})
|
|
\item Micka\"el R\'emond (\ahrefurl{xmpp:mremond@erlang-projects.org})
|
|
\item Sander Devrieze (\ahrefurl{xmpp:sander@devrieze.dyndns.org})
|
|
\item Sergei Golovan (\ahrefurl{xmpp:sgolovan@nes.ru})
|
|
\item Vsevolod Pelipas (\ahrefurl{xmpp:vsevoload@jabber.ru})
|
|
\end{itemize}
|
|
|
|
% TODO
|
|
%\section{Glossary}
|
|
%\label{sec:glossary}
|
|
%\ind{glossary}
|
|
|
|
%\begin{description}
|
|
%\titem{c2s}
|
|
%\titem{s2s}
|
|
%\titem{STARTTLS}
|
|
%\titem{JEP} (\Jabber{} Enhancement Proposal)
|
|
%\titem{Resource}
|
|
%\titem{Roster}
|
|
%\titem{Transport}
|
|
%\titem{JID} (\Jabber{} ID) <Wikipedia>
|
|
%\titem{JUD} (\Jabber{} User Directory)
|
|
%\titem{vCard} <Wikipedia>
|
|
%\titem{Publish-Subscribe}
|
|
%\titem{Namespace}
|
|
%\titem{Erlang} <Wikipedia>
|
|
%\titem{Fault-tolerant}
|
|
%\titem{Distributed} <Wikipedia>
|
|
%\titem{Node} <Wikipedia>
|
|
%\titem{Tuple} <Wikipedia>
|
|
%\titem{Regular Expression}
|
|
%\titem{ACL} (Access Control List) <Wikipedia>
|
|
%\titem{IPv6} <Wikipedia>
|
|
%\titem{XDB} ???
|
|
%\titem{LDAP} (Lightweight Directory Access Protocol) <Wikipedia>
|
|
%\titem{ODBC} (Open Database Connectivity) <Wikipedia>
|
|
%\titem{Virtual Hosting} <Wikipedia>
|
|
%\titem{}
|
|
%\titem{}
|
|
|
|
%\end{description}
|
|
|
|
|
|
|
|
% Remove the index from the HTML version to save size and bandwith.
|
|
\begin{latexonly}
|
|
\printindex
|
|
\end{latexonly}
|
|
|
|
\end{document}
|