diff --git a/debian/alternc.config b/debian/alternc.config
index 3e9bd097..2784ed09 100644
--- a/debian/alternc.config
+++ b/debian/alternc.config
@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/bash
 
 set -e
 
@@ -8,61 +8,68 @@ set -e
 db_capb backup
 
 
-#Return  if everything is good, exit error number otherwise
+#Return if everything is good, exit error number otherwise
 function valid_ip()
 {
-    local  ip=$1
-    local  stat=1
+  local  ip=$1
+  local  stat=1
 
-    if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
-        OIFS=$IFS
-        IFS='.'
-        ip=($ip)
-        IFS=$OIFS
-        [[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
-            && ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
-        stat=$?
-    fi
-    return $stat
+  if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
+    OIFS=$IFS
+    IFS='.'
+    ip=($ip)
+    IFS=$OIFS
+    [[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
+      && ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
+    stat=$?
+  fi
+  return $stat
 }
 
 
 #checking mysql connectivity and updating local.sh variables accordingly
-check_mysql(){
-
+check_mysql()
+{
   STATE=0
-    while [ "$STATE" -eq 0 ]; do
-      	db_input high alternc/mysql/host || true
-        db_go
-        db_get alternc/mysql/host || true
-        MYSQL_HOST="$RET"
-        db_input high alternc/mysql/remote_user || true
-        db_go
-        db_get alternc/mysql/remote_user || true
-        MYSQL_USER="$RET"
-        db_input high alternc/mysql/remote_password || true
-        db_go
-        db_get alternc/mysql/remote_password || true
-        MYSQL_PASSWORD="$RET"
-        db_input high alternc/mysql/client || true
-        db_go
-        db_get alternc/mysql/client || true
-        MYSQL_CLIENT="$RET"
-        if [ "`mysql -u"$MYSQL_USER" -p"$MYSQL_PASSWORD" -h"$MYSQL_HOST" -Bse 'SELECT "OK";' 2>/dev/null`" = "OK" ]; then
-          STATE=`expr $STATE + 1`
-        else
-          db_input high alternc/remote_mysql_error || true
-            db_go
-            db_get alternc/remote_mysql_error || true
-            if [ "$RET" = "false" ]; then
-              exit 4
-            fi
-        fi    
-    done
-
+  while [ "$STATE" -eq 0 ]; do
+    db_input high alternc/mysql/host || true
+    db_go
+    db_get alternc/mysql/host || true
+    MYSQL_HOST="$RET"
+    db_input high alternc/mysql/remote_user || true
+    db_go
+    db_get alternc/mysql/remote_user || true
+    MYSQL_USER="$RET"
+    db_input high alternc/mysql/remote_password || true
+    db_go
+    db_get alternc/mysql/remote_password || true
+    MYSQL_PASSWORD="$RET"
+    db_input high alternc/mysql/client || true
+    db_go
+    db_get alternc/mysql/client || true
+    MYSQL_CLIENT="$RET"
+    if [ "`mysql -u"$MYSQL_USER" -p"$MYSQL_PASSWORD" -h"$MYSQL_HOST" -Bse 'SELECT "OK";' 2>/dev/null`" = "OK" ]; then
+      STATE=`expr $STATE + 1`
+    else
+      db_input high alternc/retry_remote_mysql || true
+      if [ $? -eq 30 ]; then
+        db_input high alternc/remote_mysql_error || true
+        db_go || true
+        exit 4
+      fi
+      db_go
+      db_get alternc/retry_remote_mysql || true
+      if [ "$RET" = "false" ]; then
+        db_input high alternc/remote_mysql_error || true
+        db_go || true
+        exit 4
+      fi
+    fi
+  done
 }
 
-function get_first_existing_dir() {
+function get_first_existing_dir()
+{
   # Prend en premier parametre un chemin
   # Retourne le répertoire parent existant le plus "proche"
   # Exemple: on lui donne /var/www/alternc/gerard/dupont/ mais
@@ -79,7 +86,6 @@ function get_first_existing_dir() {
 }
 
 
-
 # default values for local.sh
 MYSQL_HOST=127.0.0.1
 MYSQL_DATABASE=alternc
@@ -102,28 +108,33 @@ SQLBACKUP_TYPE="rotate"
 SQLBACKUP_OVERWRITE="no"
 QUEST_STATE=1
 
-while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
+while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 14 ]; do
   case "$QUEST_STATE" in
   1)
     if [ -r /etc/alternc/local.sh ]; then
-        # source the current config
-        . /etc/alternc/local.sh
+      # source the current config
+      . /etc/alternc/local.sh
     fi
     # upgrade <= 3.0 to >= 3.1
-    if [ "x$ALTERNC_LOC" != "x" ]
-    then
-	ALTERNC_HTML="$ALTERNC_LOC/html"
-	ALTERNC_MAIL="$ALTERNC_LOC/mail"
+    if [ "x$ALTERNC_LOC" != "x" ]; then
+      ALTERNC_HTML="$ALTERNC_LOC/html"
+      ALTERNC_MAIL="$ALTERNC_LOC/mail"
     fi
 
     #We ask for the hosting name and the FQDN
-    db_set alternc/hostingname "$HOSTING"
-    db_set alternc/desktopname "$FQDN"
-    db_input high alternc/hostingname || true
+    db_get alternc/hostingname
+    if [ -z "$RET" ]; then
+      db_set alternc/hostingname "$HOSTING"
+      db_input high alternc/hostingname || true
+    fi
   ;;
   2)
     # Get the FQDN
-    db_input high alternc/desktopname || true
+    db_get alternc/desktopname
+    if [ -z "$RET" ]; then
+      db_set alternc/desktopname "$FQDN"
+      db_input high alternc/desktopname || true
+    fi
     # Be sure that the FQDN is lowercase (Bug #1405)
     db_get alternc/desktopname
     db_set alternc/desktopname "`echo $RET | tr '[:upper:]' '[:lower:]'`"
@@ -131,24 +142,27 @@ while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
   ;;
   3)
     #we ask for the public and private ip
-    db_set alternc/public_ip "$PUBLIC_IP"
+    db_get alternc/public_ip
+    if [ -z "$RET" ]; then
+        db_set alternc/public_ip "$PUBLIC_IP"
+    fi
     STATE=0
     while [ $STATE -eq 0 ]; do
       db_input high alternc/public_ip || true
       db_go
-      db_get alternc/public_ip 
+      db_get alternc/public_ip
       ip="$RET"
-      if  valid_ip $ip ; then 
+      if valid_ip $ip ; then
         if [ $(echo $ip |egrep '(^127\.)|(^192\.168\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^::1)$') ]; then
           db_input high alternc/use_private_ip || true
           db_go
           db_get alternc/use_private_ip
-            if [ "$RET" = "true" ]; then
-              STATE=1
-	    else
-              db_reset alternc/use_private_ip || true
-              db_fset alternc/use_private_ip "seen" "false" || true
-            fi
+          if [ "$RET" = "true" ]; then
+            STATE=1
+          else
+            db_reset alternc/use_private_ip || true
+            db_fset alternc/use_private_ip "seen" "false" || true
+          fi
         else
           STATE=1
         fi
@@ -159,55 +173,69 @@ while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
   ;;
   4)
     #private IP
-
-    db_set alternc/internal_ip "$INTERNAL_IP"
+    db_get alternc/internal_ip
+    if [ -z "$RET" ]; then
+        db_set alternc/internal_ip "$INTERNAL_IP"
+    fi
 
     STATE=0
     while [ $STATE -eq 0 ]; do
       db_input high alternc/internal_ip || true
       db_go
-      db_get alternc/internal_ip 
+      db_get alternc/internal_ip
       ip="$RET"
-      if  valid_ip $ip ; then 
+      if  valid_ip $ip ; then
         STATE=1
-      fi 
+      fi
     done
   ;;
   5)
     #We ask for the DNS server for the ip
-    db_set alternc/ns1 "$NS1_HOSTNAME"
-    db_input high alternc/ns1 || true
+    db_get alternc/ns1
+    if [ -z "$RET" ]; then
+      db_set alternc/ns1 "$NS1_HOSTNAME"
+      db_input high alternc/ns1 || true
+    fi
   ;;
   6)
-    db_set alternc/ns2 "$NS2_HOSTNAME"
-    db_input high alternc/ns2 || true
+    db_get alternc/ns2
+    if [ -z "$RET" ]; then
+      db_set alternc/ns2 "$NS2_HOSTNAME"
+      db_input high alternc/ns2 || true
+    fi
   ;;
   7)
-    db_set alternc/default_mx "$DEFAULT_MX"
-    db_input high alternc/default_mx || true
+    db_get alternc/default_mx
+    if [ -z "$RET" ]; then
+      db_set alternc/default_mx "$DEFAULT_MX"
+      db_input high alternc/default_mx || true
+    fi
   ;;
   8)
     if [ "`mysql --defaults-file=/etc/mysql/debian.cnf -Bse 'SELECT "OK";' 2>/dev/null`" = "OK" ]; then
       db_input critical alternc/use_local_mysql || true
-    else
-      db_input critical alternc/use_remote_mysql || true
     fi
   ;;
   9)
-    db_get alternc/use_local_mysql || true
-    if [ -z "$RET" -o "$RET" == "false" ]
-      then
-      #user want to use a remote server
-      check_mysql
+    db_get alternc/use_local_mysql
+    if [ "$RET" != "true" ]; then
+      db_input critical alternc/use_remote_mysql || true
     fi
   ;;
   10)
-    # We need to set the alternc_location here because we have to test for quotas and acls 
+    db_get alternc/use_remote_mysql
+    if [ "$RET" == "true" ]; then
+      # user want to use a remote server
+      check_mysql
+    fi
+  ;;
+  11)
+    # We need to set the alternc_location here because we have to test for quotas and acls
 
     db_get alternc/alternc_html
-    if [ -z "$RET" ];then
+    if [ -z "$RET" ]; then
       db_set alternc/alternc_html $ALTERNC_HTML
-      db_input high alternc/alternc_html
+      db_input high alternc/alternc_html || true
     fi
     db_get alternc/alternc_html
 
@@ -219,121 +247,93 @@ while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
     aclcheckfile="$basedir/test-acl"
     touch "$aclcheckfile"
     setfacl -m u:root:rwx "$aclcheckfile" 2>/dev/null || (
-	test -e "$aclcheckfile" && rm -f "$aclcheckfile" || true
-	db_input critical alternc/acluninstalled || true
-	db_go
-	db_reset alternc/acluninstalled || true
-	db_fset alternc/acluninstalled "seen" "false" || true
-	exit 2
+      test -e "$aclcheckfile" && rm -f "$aclcheckfile" || true
+      db_input high alternc/acluninstalled || true
+      db_go || true
+      exit 2
     )
     test -e "$aclcheckfile" && rm -f "$aclcheckfile" || true
 
     quota -gA -f $MOUNT_POINT 2>/dev/null || (
-        db_get alternc/quotauninstalled
-        if [ -z "$RET" ]; then
-            db_input critical alternc/quotauninstalled || true
-            db_go
-          #db_reset alternc/quotauninstalled || true
-            db_set alternc/quotauninstalled "false" || true
-        fi
+      db_get alternc/quotauninstalled
+      if [ -z "$RET" ]; then
+        db_input critical alternc/quotauninstalled || true
+        db_go
+        #db_reset alternc/quotauninstalled || true
+        db_set alternc/quotauninstalled "false" || true
+      fi
     )
   ;;
-  11)
+  12)
     db_get alternc/alternc_mail
-    if [ -z "$RET" ];then
+    if [ -z "$RET" ]; then
       db_set alternc/alternc_mail $ALTERNC_MAIL
-      db_input high alternc/alternc_mail
+      db_input high alternc/alternc_mail || true
     fi
   ;;
-  12)
+  13)
     db_get alternc/alternc_logs
     if [ -z "$RET" ];then
       db_set alternc/alternc_logs $ALTERNC_LOGS
-      db_input high alternc/alternc_logs
+      db_input high alternc/alternc_logs || true
     fi
   ;;
   esac
   if db_go; then
     QUEST_STATE=$(($QUEST_STATE + 1))
-  else 
+  else
     QUEST_STATE=$(($QUEST_STATE - 1))
   fi
 done
 
 if [ -r /etc/alternc/my.cnf ]; then
-    # make mysql configuration available as shell variables
-    # to convert from .cnf to shell syntax, we:
-    # * match only lines with "equal" in them (/=/)
-    # * remove whitespace around the = and add a left quote operator ' (;s)
-    # * add a right quote operator at the end of line (;s)
-    # * convert mysql variables into our MYSQL_ naming convention (;s)
-    # * print the result (;p)
-    eval `sed -n -e "/=/{s/ *= *\"\?/='/;s/\"\?\$/'/;s/host/MYSQL_HOST/;s/user/MYSQL_USER/;s/password/MYSQL_PASS/;s/database/MYSQL_DATABASE/;p}" /etc/alternc/my.cnf`
+  # make mysql configuration available as shell variables
+  # to convert from .cnf to shell syntax, we:
+  # * match only lines with "equal" in them (/=/)
+  # * remove whitespace around the = and add a left quote operator ' (;s)
+  # * add a right quote operator at the end of line (;s)
+  # * convert mysql variables into our MYSQL_ naming convention (;s)
+  # * print the result (;p)
+  eval `sed -n -e "/=/{s/ *= *\"\?/='/;s/\"\?\$/'/;s/host/MYSQL_HOST/;s/user/MYSQL_USER/;s/password/MYSQL_PASS/;s/database/MYSQL_DATABASE/;p}" /etc/alternc/my.cnf`
 fi
 
 if [ -r /etc/alternc/my_mail.cnf ]; then
-    # make mysql configuration available as shell variables
-    # to convert from .cnf to shell syntax, we:
-    # * match only lines with "equal" in them (/=/)
-    # * remove whitespace around the = and add a left quote operator ' (;s)
-    # * add a right quote operator at the end of line (;s)
-    # * convert mysql variables into our MYSQL_ naming convention (;s)
-    # * print the result (;p)
-    eval `sed -n -e "/=/{s/ *= *\"\?/='/;s/\"\?\$/'/;s/host/MYSQL_HOST/;s/user/MYSQL_MAIL_USER/;s/password/MYSQL_MAIL_PASS/;s/database/MYSQL_DATABASE/;p}" /etc/alternc/my_mail.cnf`
+  # make mysql configuration available as shell variables
+  # to convert from .cnf to shell syntax, we:
+  # * match only lines with "equal" in them (/=/)
+  # * remove whitespace around the = and add a left quote operator ' (;s)
+  # * add a right quote operator at the end of line (;s)
+  # * convert mysql variables into our MYSQL_ naming convention (;s)
+  # * print the result (;p)
+  eval `sed -n -e "/=/{s/ *= *\"\?/='/;s/\"\?\$/'/;s/host/MYSQL_HOST/;s/user/MYSQL_MAIL_USER/;s/password/MYSQL_MAIL_PASS/;s/database/MYSQL_DATABASE/;p}" /etc/alternc/my_mail.cnf`
 fi
 
-
-db_get alternc/hostingname
-if [ -z "$RET" ]
-    then
-    db_set alternc/hostingname "$HOSTING"
-fi
-
-db_get alternc/desktopname
-if [ -z "$RET" ]
-    then
-    db_set alternc/desktopname "$FQDN"
-fi
-
-
 db_get alternc/monitor_ip
-if [ -z "$RET" ]
-    then
-db_set alternc/monitor_ip "$MONITOR_IP"
-fi
-
-db_get alternc/ns2
-if [ -z "$RET" ]
-    then
-db_set alternc/ns2 "$NS2_HOSTNAME"
+if [ -z "$RET" ]; then
+  db_set alternc/monitor_ip "$MONITOR_IP"
 fi
 
 db_get alternc/default_mx2
-if [ -z "$RET" ]
-    then
-db_set alternc/default_mx2 "$DEFAULT_SECONDARY_MX"
+if [ -z "$RET" ]; then
+  db_set alternc/default_mx2 "$DEFAULT_SECONDARY_MX"
 fi
 
 db_get alternc/mysql/host
-if [ -z "$RET" ]
-    then
-db_set alternc/mysql/host "$MYSQL_HOST"
+if [ -z "$RET" ]; then
+  db_set alternc/mysql/host "$MYSQL_HOST"
 fi
 
 #Even if we asked the question concerning the database earlier in the process
 #those calls are needed to pass the variable of remote sql server to AlternC
 db_get alternc/mysql/db
-if [ -z "$RET" ]
-    then
-db_set alternc/mysql/db "$MYSQL_DATABASE"
+if [ -z "$RET" ]; then
+  db_set alternc/mysql/db "$MYSQL_DATABASE"
 fi
 
 db_get alternc/mysql/user
-if [ -z "$RET" ]
-    then
+if [ -z "$RET" ]; then
   db_get alternc/mysql/remote_user
-  if [ -z "$RET" ]
-  then
+  if [ -z "$RET" ]; then
     db_set alternc/mysql/user "$MYSQL_USER"
   else
     db_set alternc/mysql/user "$RET"
@@ -341,11 +341,9 @@ if [ -z "$RET" ]
 fi
 
 db_get alternc/mysql/password
-if [ -z "$RET" ]
-    then
+if [ -z "$RET" ]; then
   db_get alternc/mysql/remote_password
-  if [ -z "$RET" ]
-    then
+  if [ -z "$RET" ]; then
     db_set alternc/mysql/password "$MYSQL_PASS"
   else
     db_set alternc/mysql/password "$RET"
@@ -353,33 +351,28 @@ if [ -z "$RET" ]
 fi
 
 db_get alternc/mysql/client
-if [ -z "$RET" ]
-    then
-    db_set alternc/mysql/client "$MYSQL_CLIENT"
+if [ -z "$RET" ]; then
+  db_set alternc/mysql/client "$MYSQL_CLIENT"
 fi
 
 db_get alternc/sql/backup_type
-if [ -z "$RET" ]
-    then
-db_set alternc/sql/backup_type "$SQLBACKUP_TYPE"
+if [ -z "$RET" ]; then
+  db_set alternc/sql/backup_type "$SQLBACKUP_TYPE"
 fi
 
 db_get alternc/sql/backup_overwrite
-if [ -z "$RET" ]
-    then
-db_set alternc/sql/backup_overwrite "$SQLBACKUP_OVERWRITE"
+if [ -z "$RET" ]; then
+  db_set alternc/sql/backup_overwrite "$SQLBACKUP_OVERWRITE"
 fi
 
 db_get alternc/mysql/alternc_mail_user
-if [ -z "$RET" ]
-    then
-db_set alternc/mysql/alternc_mail_user "$MYSQL_MAIL_USER"
+if [ -z "$RET" ]; then
+  db_set alternc/mysql/alternc_mail_user "$MYSQL_MAIL_USER"
 fi
 
 db_get alternc/mysql/alternc_mail_password
-if [ -z "$RET" ]
-    then
-db_set alternc/mysql/alternc_mail_password "$MYSQL_MAIL_PASS"
+if [ -z "$RET" ]; then
+  db_set alternc/mysql/alternc_mail_password "$MYSQL_MAIL_PASS"
 fi
 
 db_input low alternc/default_mx2 || true
diff --git a/debian/alternc.templates b/debian/alternc.templates
index 9a98dca6..53e45640 100644
--- a/debian/alternc.templates
+++ b/debian/alternc.templates
@@ -1,11 +1,14 @@
 Template: alternc/acluninstalled
-Type: note
+Type: error
 _Description: AlternC need ACL on filesystem
  AlternC can't work without ACL activated on its filesystem.
  ACL are currently not enabled.
  .
  Also, you need to activate group quota (grpquota)
  to be able to use disk quota (but that's not mandatory).
+ .
+ This is a fatal error and will cause the package installation
+ to fail.
 
 Template: alternc/quotauninstalled
 Type: note
@@ -238,11 +241,10 @@ _Description: Use locally found MySQL server?
 Template: alternc/use_remote_mysql
 Type: boolean
 _Description: Use a remote MySQL server?
- No local Mysql server was found.
  Please confirm you want to use a remote Mysql Server.
  If not, AlternC cannot be installed.
 
-Template: alternc/remote_mysql_error
+Template: alternc/retry_remote_mysql
 Type: boolean
 _Description: MySQL connection error. Try again?
  Remote connection to the MySQL server failed.
@@ -255,3 +257,10 @@ _Description: Private IP detected, use it anyway?
  this is an expected situation, since the server might not be reachable
  from outside your network.
 
+Template: alternc/remote_mysql_error
+Type: error
+_Description: Remote mysql: connection error
+ Connection to the remote MySQL server failed.
+ .
+ This is a fatal error and will cause the package installation
+ to fail.