diff --git a/captcha/experimental.sh b/captcha/experimental.sh
index ce1c940..3934758 100755
--- a/captcha/experimental.sh
+++ b/captcha/experimental.sh
@@ -21,7 +21,7 @@ if test -n ${BASH_VERSION:-''} ; then
 	R=$RANDOM
     }
 else
-    for n in `od -A n -t u2 -N 48 /dev/urandom`; do RL="$RL$n "; done
+    for n in `od -A n -t u2 -N 64 /dev/urandom`; do RL="$RL$n "; done
     get_random ()
     {  
 	R=${RL%% *}
diff --git a/rapport_activite/rapport_activites.sh b/rapport_activite/rapport_activites.sh
index bcfce1b..a224cb8 100755
--- a/rapport_activite/rapport_activites.sh
+++ b/rapport_activite/rapport_activites.sh
@@ -27,7 +27,7 @@ main() {
     echo "h2. ## Audio/Video Call usage:"
     # Dans la config actuelle de logrotate, le log du mois dernier est stocké en tete clair, et tous les autres sont compressés par gzip. Un cat ne sortira de texte lisible que pour les fichiers en clair soit forcément celui du mois précédent
     echo ""
-    echo "* Number of calls relayed: $(zgrep DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Offering stun" | wc -l)"
+    echo "* Number of calls relayed: $(zgrep $DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Offering stun" | wc -l)"
     echo "* Data relayed per protocol per call:"
     echo "** UDP: avg $(get_avg_UDP_turn_relayed_data) KiB, max $(get_max_UDP_turn_relayed_data) KiB, total $(get_total_UDP_turn_relayed_data) KiB"
     echo "** TCP: avg $(get_avg_TCP_turn_relayed_data) KiB, max $(get_max_TCP_turn_relayed_data) KiB, total $(get_total_TCP_turn_relayed_data) KiB"
@@ -112,7 +112,7 @@ get_last_month() {
 }
 
 get_total_UDP_turn_relayed_data() {
-    n=$(zgrep $DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "UDP" | cut -d" " -f6-6 | paste -sd+ - | bc)
+    n=$(zgrep "$DATE" /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "UDP" | cut -d" " -f6-6 | paste -sd+ - | bc)
     if [ -z $n ]; then
         echo 0
     else
@@ -121,7 +121,7 @@ get_total_UDP_turn_relayed_data() {
 }
 
 get_total_TCP_turn_relayed_data() {
-    n=$(zgrep $DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TCP" | cut -d" " -f6-6 | paste -sd+ - | bc)
+    n=$(zgrep "$DATE" /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TCP" | cut -d" " -f6-6 | paste -sd+ - | bc)
     if [ -z $n ]; then
         echo 0
     else
@@ -130,7 +130,7 @@ get_total_TCP_turn_relayed_data() {
 }
 
 get_total_TLS_turn_relayed_data() {
-    n=$(zgrep $DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TLS" | cut -d" " -f6-6 | paste -sd+ - | bc)
+    n=$(zgrep "$DATE" /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TLS" | cut -d" " -f6-6 | paste -sd+ - | bc)
     if [ -z $n ]; then
         echo 0
     else
@@ -139,7 +139,7 @@ get_total_TLS_turn_relayed_data() {
 }
 
 get_max_UDP_turn_relayed_data() {
-    n=$(zgrep $DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "UDP" | cut -d" " -f6-6 | sort | tail -n 1)
+    n=$(zgrep "$DATE" /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "UDP" | cut -d" " -f6-6 | sort | tail -n 1)
     if [ -z $n ]; then
         echo 0
     else
@@ -148,7 +148,7 @@ get_max_UDP_turn_relayed_data() {
 }
 
 get_max_TCP_turn_relayed_data() {
-    n=$(zgrep $DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TCP" | cut -d" " -f6-6 | sort | tail -n 1)
+    n=$(zgrep "$DATE" /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TCP" | cut -d" " -f6-6 | sort | tail -n 1)
     if [ -z $n ]; then
         echo 0
     else
@@ -157,7 +157,7 @@ get_max_TCP_turn_relayed_data() {
 }
 
 get_max_TLS_turn_relayed_data() {
-    n=$(zgrep $DATE /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TLS" | cut -d" " -f6-6 | sort | tail -n 1)
+    n=$(zgrep "$DATE" /var/log/ejabberd/ejabberd.log* | grep -i -e "Relayed" | grep "TLS" | cut -d" " -f6-6 | sort | tail -n 1)
     if [ -z $n ]; then
         echo 0
     else