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269 lines
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<HEAD><TITLE>Ejabberd Installation and Operation Guide</TITLE>
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<!--HEVEA command line is: hevea guide.tex -->
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<!--CUT DEF section 1 -->
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<H1 ALIGN=center>Ejabberd Installation and Operation Guide</H1>
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<H3 ALIGN=center>Alexey Shchepin<BR><A HREF="mailto:alexey@sevcom.net"><TT>mailto:alexey@sevcom.net</TT></A><BR><A HREF="xmpp:aleksey@jabber.ru"><TT>xmpp:aleksey@jabber.ru</TT></A></H3>
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<H3 ALIGN=center>January 23, 2003</H3> <DIV ALIGN=center><IMG SRC="logo.png">
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</DIV><BR>
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<BR>
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<BR>
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<BR>
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<!--TOC section Introduction-->
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<H2>1 Introduction</H2><!--SEC END -->
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<A NAME="sec:intro"></A><TT>ejabberd</TT> is a Free and Open Source distributed fault-tolerant Jabber
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server. It writen mostly in Erlang.<BR>
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<BR>
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TBD<BR>
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<BR>
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<!--TOC section Installation-->
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<H2>2 Installation</H2><!--SEC END -->
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<A NAME="sec:installation"></A><!--TOC subsection Installation Requirements-->
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<H3>2.1 Installation Requirements</H3><!--SEC END -->
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<A NAME="sec:installreq"></A>To compile <TT>ejabberd</TT>, you need following packages:
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<UL>
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<LI>
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GNU Make;
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<LI> GCC;
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<LI> libexpat 1.95 or later;
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<LI> Erlang/OTP R8B or later.
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</UL><!--TOC subsection Obtaining-->
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<H3>2.2 Obtaining</H3><!--SEC END -->
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<A NAME="sec:obtaining"></A>Currently no stable version released.<BR>
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<BR>
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Latest alpha version can be retrieved via CVS. Do following steps:
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<UL>
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<LI>
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<TT>export CVSROOT=:pserver:cvs@www.jabber.ru:/var/spool/cvs</TT>
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<LI> <TT>cvs login</TT>
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<LI> Enter empty password
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<LI> <TT>cvs -z3 co ejabberd</TT>
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</UL><!--TOC subsection Compilation-->
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<H3>2.3 Compilation</H3><!--SEC END -->
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<A NAME="sec:compilation"></A><!--TOC section Configuration-->
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<H2>3 Configuration</H2><!--SEC END -->
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<A NAME="sec:configuration"></A><!--TOC subsection Initial Configuration-->
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<H3>3.1 Initial Configuration</H3><!--SEC END -->
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<A NAME="sec:initconfig"></A>Configuration file is loaded after first start of <TT>ejabberd</TT>. It consists of
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sequence of Erlang terms. Parts of lines after <TT>`%'</TT> sign are ignored.
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Each term is tuple, where first element is name of option, and other are option
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values.<BR>
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<BR>
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<!--TOC subsubsection Host Name-->
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<H4>3.1.1 Host Name</H4><!--SEC END -->
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<A NAME="sec:confighostname"></A>Option <TT>hostname</TT> defines name of Jabber domain that <TT>ejabberd</TT>
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serves. E. g. to use <TT>jabber.org</TT> domain add following line in config:
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<PRE>
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{host, "jabber.org"}.
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</PRE><!--TOC subsubsection Listened Sockets-->
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<H4>3.1.2 Listened Sockets</H4><!--SEC END -->
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<A NAME="sec:configlistened"></A>Option <TT>listen</TT> defines list of listened sockets and what services
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runned on them. Each element of list is a tuple with following elements:
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<UL>
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<LI>
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Port number;
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<LI> Module that serves this port;
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<LI> Function in this module that starts connection (likely will be removed);
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<LI> Options to this module.
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</UL>Currently three modules implemented:
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<UL>
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<LI>
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<TT>ejabberd_c2s</TT>: serves C2S connections;
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<LI> <TT>ejabberd_s2s_in</TT>: serves incoming S2S connections;
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<LI> <TT>ejabberd_service</TT>: serves connections to Jabber services (i.e.
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that used <TT>jabber:component:accept</TT> namespace).
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</UL>For example, following configuration defines that C2S connections listened on
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port 5222, S2S on port 5269 and that service <TT>conference.jabber.org</TT>
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must be connected to port 8888 with password ``<TT>secret</TT>''.<BR>
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<BR>
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<PRE>
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{listen, [{5222, ejabberd_c2s, start, []},
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{5269, ejabberd_s2s_in, start, []},
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{8888, ejabberd_service, start, ["conference.jabber.org", "secret"]}
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]}.
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</PRE><!--TOC subsubsection Access Rules-->
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<H4>3.1.3 Access Rules</H4><!--SEC END -->
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<A NAME="sec:configaccess"></A>TBD<BR>
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<BR>
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<!--TOC subsubsection Modules-->
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<H4>3.1.4 Modules</H4><!--SEC END -->
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<A NAME="sec:configmodules"></A>Option <TT>modules</TT> defines list of modules that will be loaded after
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<TT>ejabberd</TT> startup. Each list element is a tuple where first element is a
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name of module and second is list of options to this module. Refer to
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section <A HREF="#sec:modules">5</A> for detailed information on each module.<BR>
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<BR>
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Example:
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<PRE>
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{modules, [
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{mod_register, []},
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{mod_roster, []},
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{mod_configure, []},
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{mod_disco, []},
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{mod_stats, []},
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{mod_vcard, []},
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{mod_offline, []},
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{mod_echo, [{host, "echo.e.localhost"}]},
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{mod_private, []},
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{mod_time, [{pdisc, no_queue}]},
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{mod_version, []}
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]}.
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</PRE><!--TOC subsection Online Configuration-->
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<H3>3.2 Online Configuration</H3><!--SEC END -->
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<A NAME="sec:onlineconfig"></A>To use facility of online reconfiguration of <TT>ejabberd</TT> needed to have
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<TT>mod_configure</TT> loaded (see section <A HREF="#sec:modconfigure">5.4</A>). Also highly
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recommended to load <TT>mod_disco</TT> (see section <A HREF="#sec:moddisco">5.5</A>), because
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<TT>mod_configure</TT> highly integrates with it. Also recommended to use
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disco-capable client.<BR>
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<BR>
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TBD<BR>
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<BR>
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<!--TOC section Distribution-->
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<H2>4 Distribution</H2><!--SEC END -->
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<A NAME="sec:distribution"></A><!--TOC section Built-in Modules-->
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<H2>5 Built-in Modules</H2><!--SEC END -->
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<A NAME="sec:modules"></A><!--TOC subsection Common Options-->
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<H3>5.1 Common Options</H3><!--SEC END -->
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<A NAME="sec:modcommonopts"></A>Following options used by many modules, so they described in separate section.<BR>
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<BR>
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<!--TOC subsubsection Option <TT>iqdisc</TT>-->
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<H4>5.1.1 Option <TT>iqdisc</TT></H4><!--SEC END -->
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Many modules define handlers for processing IQ queries of different namespaces
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to this server or to user (e. g. to <TT>myjabber.org</TT> or to
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<TT>user@myjabber.org</TT>). This option defines processing discipline of this
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queries. Possible values are:
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<DL COMPACT=compact>
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<DT>
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<TT>no_queue</TT><DD> All queries of namespace with this processing
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discipline processed immediately. This also means that no other packets can
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be processed until finished this. Hence this discipline is not recommended
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if processing of query can take relative many time.
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<DT><TT>one_queue</TT><DD> In this case created separate queue for processing
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IQ queries of namespace with this discipline, and processing of this queue
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done in parallel with processing of other packets. This discipline is most
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recommended.
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<DT><TT>parallel</TT><DD> In this case for all packets of namespace with this
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discipline spawned separate Erlang process, so all this packets processed in
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parallel. Although spawning of Erlang process have relative low cost, this
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can broke server normal work, because Erlang have limit of 32000 processes.
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</DL>Example:
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<PRE>
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{modules, [
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...
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{mod_time, [{pdisc, no_queue}]},
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...
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]}.
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</PRE><!--TOC subsection <TT>mod_register</TT>-->
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<H3>5.2 <TT>mod_register</TT></H3><!--SEC END -->
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<A NAME="sec:modregister"></A><!--TOC subsection <TT>mod_roster</TT>-->
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<H3>5.3 <TT>mod_roster</TT></H3><!--SEC END -->
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<A NAME="sec:modroster"></A><!--TOC subsection <TT>mod_configure</TT>-->
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<H3>5.4 <TT>mod_configure</TT></H3><!--SEC END -->
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<A NAME="sec:modconfigure"></A><!--TOC subsection <TT>mod_disco</TT>-->
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<H3>5.5 <TT>mod_disco</TT></H3><!--SEC END -->
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<A NAME="sec:moddisco"></A><!--TOC subsection <TT>mod_stats</TT>-->
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<H3>5.6 <TT>mod_stats</TT></H3><!--SEC END -->
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<A NAME="sec:modstats"></A><!--TOC subsection <TT>mod_vcard</TT>-->
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<H3>5.7 <TT>mod_vcard</TT></H3><!--SEC END -->
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<A NAME="sec:modvcard"></A><!--TOC subsection <TT>mod_offline</TT>-->
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<H3>5.8 <TT>mod_offline</TT></H3><!--SEC END -->
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<A NAME="sec:modoffline"></A><!--TOC subsection <TT>mod_echo</TT>-->
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<H3>5.9 <TT>mod_echo</TT></H3><!--SEC END -->
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<A NAME="sec:modecho"></A><!--TOC subsection <TT>mod_private</TT>-->
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<H3>5.10 <TT>mod_private</TT></H3><!--SEC END -->
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<A NAME="sec:modprivate"></A><!--TOC subsection <TT>mod_time</TT>-->
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<H3>5.11 <TT>mod_time</TT></H3><!--SEC END -->
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<A NAME="sec:modtime"></A><!--TOC subsection <TT>mod_version</TT>-->
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<H3>5.12 <TT>mod_version</TT></H3><!--SEC END -->
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<A NAME="sec:modversion"></A><!--HTMLFOOT-->
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<HR SIZE=2>
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<BLOCKQUOTE><EM>This document was translated from L<sup>A</sup>T<sub>E</sub>X by
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</EM><A HREF="http://pauillac.inria.fr/~maranget/hevea/index.html"><EM>H</EM><EM><FONT SIZE=2><sup>E</sup></FONT></EM><EM>V</EM><EM><FONT SIZE=2><sup>E</sup></FONT></EM><EM>A</EM></A><EM>.
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