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#/bin/bash
# $Id: alcasar-conf.sh 1062 2013-04-01 21:20:12Z richard $

# alcasar-conf.sh
# by REXY
# This script is distributed under the Gnu General Public License (GPL)

# Ce script permet la mise à jour ALCASAR 
#       - création de l'archive des fichiers de configuration (/tmp/alcasar-conf.tar.gz)
#       - chargement d'une archive (lors de la mise à jour d'un alcasar)
#       - application des directives du fichier de conf central "/usr/local/etc/alcasar.conf" (lors d'un changement de conf à chaud) 
# This script allows ALCASAR update 
#       - create the configuration files backup (/tmp/alcasar-conf.tar.gz)
#       - load the bachup of configuration files (during the update process)
#       - apply ALCASAR central configuration file "/usr/local/etc/alcasar.conf" (when hot modification are needed)

new="$(date +%G%m%d-%Hh%M)"                     # date et heure des fichiers
fichier="alcasar-conf-$new.tar.gz"              # nom du fichier de sauvegarde
DIR_UPDATE="/tmp/conf"                          # répertoire de stockage des fichier de conf pour une mise à jour
DIR_WEB="/var/www/html"                         # répertoire du centre de gestion
DIR_BIN="/usr/local/bin"                        # répertoire des scripts d'admin
DIR_SBIN="/usr/local/sbin"                      # répertoire des scripts d'admin
DIR_ETC="/usr/local/etc"                        # répertoire des fichiers de conf
DIR_SAVE="/var/Save/system_backup"              # répertoire de sauvegarde
CONF_FILE="$DIR_ETC/alcasar.conf"               # main alcasar conf file
VERSION="/var/www/html/VERSION"                 # contient la version en cours
EXTIF="eth0"                                    # ETH0 est l'interface connectée à Internet (Box FAI)
INTIF="eth1"                                    # ETH1 est l'interface connectée au réseau local de consultation
HOSTNAME="alcasar"
DB_USER="radius"
radiuspwd=""
SED="/bin/sed -i"
RUNNING_VERSION=`cat $VERSION|cut -d" " -f1`
MAJ_RUNNING_VERSION=`echo $RUNNING_VERSION|cut -d"." -f1`
MIN_RUNNING_VERSION=`echo $RUNNING_VERSION|cut -d"." -f2|cut -c1`
UPD_RUNNING_VERSION=`echo $RUNNING_VERSION|cut -d"." -f3`
DOMAIN=`grep DOMAIN $CONF_FILE|cut -d"=" -f2` 2>/dev/null # Error if (Version < 2.2) (no conf file)
DOMAIN=${DOMAIN:=localdomain}
DATE=`date '+%d %B %Y - %Hh%M'`
private_network_calc ()
{
        PRIVATE_PREFIX=`/bin/ipcalc -p $PRIVATE_IP $PRIVATE_NETMASK |cut -d"=" -f2`                             # prefixe du réseau (ex. 24)
        PRIVATE_NETWORK=`/bin/ipcalc -n $PRIVATE_IP $PRIVATE_NETMASK| cut -d"=" -f2`                            # @ réseau de consultation (ex.: 192.168.182.0)
        PRIVATE_NETWORK_MASK=$PRIVATE_NETWORK/$PRIVATE_PREFIX                                                   # @ + masque du réseau de consult (192.168.182.0/24)
        classe=$((PRIVATE_PREFIX/8)); classe_sup=`expr $classe + 1`; classe_sup_sup=`expr $classe + 2`          # classes de réseau (ex.: 2=classe B, 3=classe C)
        PRIVATE_NETWORK_SHORT=`echo $PRIVATE_NETWORK | cut -d"." -f1-$classe`.                                  # @ compatible hosts.allow et hosts.deny (ex.: 192.168.182.)
        PRIVATE_BROADCAST=`/bin/ipcalc -b $PRIVATE_NETWORK_MASK | cut -d"=" -f2`                                # private network broadcast (ie.: 192.168.182.255)
        private_network_ending=`echo $PRIVATE_NETWORK | cut -d"." -f$classe_sup`                                # last octet of LAN address
        private_broadcast_ending=`echo $PRIVATE_BROADCAST | cut -d"." -f$classe_sup`                            # last octet of LAN broadcast
        PRIVATE_FIRST_IP=`echo $PRIVATE_NETWORK | cut -d"." -f1-3`"."`expr $private_network_ending + 1`         # First network address (ex.: 192.168.182.1)
        PRIVATE_SECOND_IP=`echo $PRIVATE_NETWORK | cut -d"." -f1-3`"."`expr $private_network_ending + 2`        # second network address (ex.: 192.168.182.2)
        PRIVATE_LAST_IP=`echo $PRIVATE_BROADCAST | cut -d"." -f1-3`"."`expr $private_broadcast_ending - 1`      # last network address (ex.: 192.168.182.254)
}

usage="Usage: alcasar-conf.sh {--create or -create} | {--load or -load} | {--apply or -apply}"
nb_args=$#
args=$1
if [ $nb_args -eq 0 ]
then
        nb_args=1
        args="-h"
fi
case $args in
        -\? | -h* | --h*)
                echo "$usage"
                exit 0
                ;;
        --create|-create)       
                [ -d $DIR_UPDATE ] && rm -rf $DIR_UPDATE
                mkdir $DIR_UPDATE
# Sauvegarde de la base des usagers
                $DIR_SBIN/alcasar-mysql.sh -dump
                cp /var/Save/base/`ls /var/Save/base|tail -1` $DIR_UPDATE
# Sauvegarde du logo
                cp -f $DIR_WEB/images/organisme.png $DIR_UPDATE
# Sauvegarde des fichiers exploités par dansguardian 
                cp -f /etc/dansguardian/lists/exceptioniplist $DIR_UPDATE
                cp -f /etc/dansguardian/lists/urlregexplist $DIR_UPDATE
                cp -f /etc/dansguardian/lists/exceptionsitelist $DIR_UPDATE
                cp -f /etc/dansguardian/lists/bannedsitelist $DIR_UPDATE
                cp -f /etc/dansguardian/lists/exceptionurllist $DIR_UPDATE
                cp -f /etc/dansguardian/lists/bannedurllist $DIR_UPDATE
                cp -rf /etc/dansguardian/lists/blacklists/ossi $DIR_UPDATE
# sauvegarde des fichiers : de conf, de filtrage, d'exception, digest, etc.
                mkdir $DIR_UPDATE/etc/
                cp -rf $DIR_ETC/* $DIR_UPDATE/etc/
# particularité des versions
# si version <= 2.0
                if [ $MAJ_RUNNING_VERSION -lt 2 ] || ([ $MAJ_RUNNING_VERSION -eq 2 ] && [ $MIN_RUNNING_VERSION -eq 0 ])
                then
                        rm -f $DIR_UPDATE/etc/alcasar-dns-name          # changement de format
                        rm -rf $DIR_UPDATE/etc/digest                   # hostname=alcasar
                        if [ -e $DIR_UPDATE/etc/alcasar-uamallowed ]; then
                                uamallowed=`cat $DIR_UPDATE/etc/alcasar-uamallowed`
                                if [ $uamallowed == "uamallowed=\"\"" ]
                                        then rm -f $DIR_UPDATE/etc/alcasar-uamallowed           # un uamallowed 'vide' perturbe coova
                                fi
                        fi
                        if [ -e $DIR_UPDATE/etc/alcasar-uamdomain ]; then
                                uamdomain=`cat $DIR_UPDATE/etc/alcasar-uamdomain`
                                if [ $uamdomain == "uamdomain=\"\"" ]
                                        then rm -f $DIR_UPDATE/etc/alcasar-uamdomain            # un uamdomain 'vide' perturbe coova
                                fi
                        fi
                else
# si version >= 2.1 : sauvegarde des certificats (serveur et CA)
                        cert_date=`/usr/bin/openssl x509 -noout -in /etc/pki/tls/certs/alcasar.crt -dates|grep After|cut -d"=" -f2`
                        cp -f /etc/pki/tls/certs/alcasar.crt $DIR_UPDATE
                        cp -f /etc/pki/tls/private/alcasar.key $DIR_UPDATE
                        cp -f /etc/pki/CA/alcasar-ca.crt $DIR_UPDATE
                        cp -f /etc/pki/CA/private/alcasar-ca.key $DIR_UPDATE
                        if [ -e /etc/pki/tls/certs/server-chain.crt ]; then
                                cp -f /etc/pki/tls/certs/server-chain.crt $DIR_UPDATE
                        else
                                cp -f /etc/pki/tls/certs/alcasar.crt $DIR_UPDATE/server-chain.crt
                        fi
                fi
# si version < 2.2
                if [ $MAJ_RUNNING_VERSION -lt 2 ] || ([ $MAJ_RUNNING_VERSION -eq 2 ] && [ $MIN_RUNNING_VERSION -lt 2 ])
                then
                        ORGANISM=`cat $DIR_WEB/intercept.php|grep '$organisme =' | cut -d"=" -f2|tr -d ";\" "` # Sauvegarde du nom d'organisme
                        rm -f $DIR_UPDATE/etc/alcasar-ethers            # This file doesn't contain comments
                        rm -f $DIR_UPDATE/exceptionurllist              # This file was not empty (comments)
                        # Create the initial conf file (doesn't exist in earlier versions)
                        cat <<EOF > $CONF_FILE
##########################################
##                                      ##
##          ALCASAR Parameters          ##
##                                      ##
##########################################

INSTALL_DATE=$DATE
VERSION=$RUNNING_VERSION
ORGANISM=$ORGANISM
DOMAIN=$DOMAIN
EOF
                        PUBLIC_IP=`grep IPADDR /etc/sysconfig/network-scripts/ifcfg-$EXTIF|cut -d"=" -f2`       # @ip du portail (côté Internet)
                        PUBLIC_NETMASK=`grep NETMASK /etc/sysconfig/network-scripts/ifcfg-$EXTIF|cut -d"=" -f2`
                        PUBLIC_PREFIX=`/bin/ipcalc -p $PUBLIC_IP $PUBLIC_NETMASK |cut -d"=" -f2`                # prefixe du réseau (ex. 24)
                        PUBLIC_GATEWAY=`grep GATEWAY /etc/sysconfig/network-scripts/default-ifcfg-$EXTIF|cut -d"=" -f2`
                        DNS1=`grep DNS1 /etc/sysconfig/network-scripts/default-ifcfg-$EXTIF|cut -d"=" -f2`      # @ip 1er DNS
                        DNS2=`grep DNS2 /etc/sysconfig/network-scripts/default-ifcfg-$EXTIF|cut -d"=" -f2`      # @ip 2ème DNS
                        DNS1=${DNS1:=208.67.220.220}
                        DNS2=${DNS2:=208.67.222.222}
                        PRIVATE_IP=`grep IPADDR /etc/sysconfig/network-scripts/ifcfg-$INTIF|cut -d"=" -f2`      # @ip du portail (côté LAN)
                        PRIVATE_NETMASK=`grep NETMASK /etc/sysconfig/network-scripts/ifcfg-$INTIF|cut -d"=" -f2`
                        private_network_calc
                        echo "PUBLIC_IP=$PUBLIC_IP/$PUBLIC_PREFIX" >> $CONF_FILE 
                        echo "GW=$PUBLIC_GATEWAY" >> $CONF_FILE
                        echo "DNS1=$DNS1" >> $CONF_FILE
                        echo "DNS2=$DNS2" >> $CONF_FILE 
                        echo "PRIVATE_IP=$PRIVATE_IP/$PRIVATE_PREFIX" >> $CONF_FILE 
                        echo "DHCP=full" >> $CONF_FILE
                        echo "EXT_DHCP_IP=none" >> $CONF_FILE
                        echo "RELAY_DHCP_IP=none" >> $CONF_FILE
                        echo "RELAY_DHCP_PORT=none" >> $CONF_FILE
 
                        if [ -r /var/run/sshd.pid ]; then
                                echo "SSH=on" >> $CONF_FILE
                        else
                                echo "SSH=off" >> $CONF_FILE
                        fi
                        echo "SSH_ADMIN_FROM=0.0.0.0/0.0.0.0" >> $CONF_FILE
                        echo "QOS=off" >> $CONF_FILE
                        echo "WEB_ANTIVIRUS=on" >> $CONF_FILE
                        if [ `grep ^ldap /etc/raddb/sites-available/alcasar | wc -l` -eq "0" ];  then
                                echo "LDAP=off" >> $CONF_FILE
                        else
                                echo "LDAP=on" >> $CONF_FILE
                        fi
                        echo "LDAP_IP=0.0.0.0/0.0.0.0" >> $CONF_FILE
                        PROTOCOLS_FILTERING=`grep ^PROTO_FILTERING /usr/local/bin/alcasar-iptables.sh | cut -d"=" -f2`
                        PROTOCOLS_FILTERING=${PROTOCOLS_FILTERING:="no"}
                        if [ $PROTOCOLS_FILTERING = "no" ]; then
                                echo "PROTOCOLS_FILTERING=off" >> $CONF_FILE
                        else
                                echo "PROTOCOLS_FILTERING=on" >> $CONF_FILE
                        fi
                        DNS_FILTERING=`grep ^reportinglevel /etc/dansguardian/dansguardian.conf | cut -d"=" -f2 | tr -d " "`
                        DNS_FILTERING=${DNS_FILTERING:="-1"}
                        if [ $DNS_FILTERING -eq "-1" ]; then
                                echo "DNS_FILTERING=off" >> $CONF_FILE
                        else
                                echo "DNS_FILTERING=on" >> $CONF_FILE
                        fi
                fi
# since V2.6
# SSH_ADMIN_FROM is redefined
                $SED "s?^Admin_from_IP=.*?SSH_ADMIN_FROM=0.0.0.0/0.0.0.0?" $CONF_FILE
# macallowed is replaced with macauth 
                rm -f $DIR_UPDATE/etc/alcasar-macallowed
# DHCP mode can be "off/half/full"
                DHCP_mode=`cat $CONF_FILE|grep DHCP=|cut -d"=" -f2`
                if [ $DHCP_mode = "on" ]; then
                        $SED "s?^DHCP=on.*?DHCP=full?" $CONF_FILE       # DHCP option can be "off/half/full" since V2.6
                fi
# The option 'EXT_LAN_FILTERING' is deleted
                $SED "/^EXT_LAN/d" $CONF_FILE
# The category "ip" no longer exist
                $SED "/\/ip\/urls/d" $DIR_UPDATE/bannedurllist; $SED "/\/ip\/domains/d" $DIR_UPDATE/bannedsitelist
                $SED "/blacklists\/ip/d" $DIR_UPDATE/etc/alcasar-bl-categories; $SED "/^ip/d" $DIR_UPDATE/etc/alcasar-bl-categories-enabled
# BL and WL are now dynamically built in "/usr/local/share"
                rm -rf $DIR_UPDATE/etc/alcasar-dnsfilter-enabled $DIR_UPDATE/etc/alcasar-dnsfilter-available
# Bing et Youtube are addes to the safesearching system
                Bing=`grep bing $DIR_UPDATE/urlregexplist | wc -l`
                if [ $Bing -ne "1" ]; then
                        SafeSearch=`grep ^\"\(\^http\:\/\/ $DIR_UPDATE/urlregexplist | wc -l`
                        if [ $SafeSearch -eq "0" ]; then
                        cat <<EOF >> $DIR_UPDATE/urlregexplist
# Bing - add 'adlt=strict'
#"(^http://[0-9a-z]+\.bing\.[a-z]+[-/%.0-9a-z]*\?)(.*)"->"\1\2&adlt=strict"
# Youtube - add 'edufilter=your_ID' 
#"(^http://[0-9a-z]+\.youtube\.[a-z]+[-/%.0-9a-z]*\?)(.*)"->"\1\2&edufilter=ABCD1234567890abcdef"
EOF
                        else
                        cat <<EOF >> $DIR_UPDATE/urlregexplist
# Bing - add 'adlt=strict'
"(^http://[0-9a-z]+\.bing\.[a-z]+[-/%.0-9a-z]*\?)(.*)"->"\1\2&adlt=strict"
# Youtube - add 'edufilter=your_ID' 
"(^http://[0-9a-z]+\.youtube\.[a-z]+[-/%.0-9a-z]*\?)(.*)"->"\1\2&edufilter=ABCD1234567890abcdef"
EOF
                        fi
                fi
# la variable YOUTUBE_ID est déclarée dans le fichier de conf
        YOUTUBE_ID=`grep ^YOUTUBE_ID $CONF_FILE | cut -d"=" -f2`
        YOUTUBE_ID=${YOUTUBE_ID:="-1"}
        if [ $YOUTUBE_ID = "-1" ]; then
                echo "YOUTUBE_ID=ABCD1234567890abcdef" >> $CONF_FILE
        fi
                cp /etc/sysconfig/dnsmasq $DIR_UPDATE
# copie du fichier de conf modifié
        cp $CONF_FILE $DIR_UPDATE/etc/
# le répertoire "ISO" est remplacé par "system_backup" suite à la suppression de "mondoarchive" (V2.5)
                rm -rf /var/Save/ISO
# création de l'archive et copie dans le répertoire WEB associé
                cd /tmp
                tar -cf alcasar-conf.tar conf/
                gzip -f alcasar-conf.tar
                [ -d $DIR_SAVE ] && cp alcasar-conf.tar.gz $DIR_SAVE/$fichier
                rm -rf $DIR_UPDATE
                ;;
        --load|-load)
                cd /tmp
                tar -xf /tmp/alcasar-conf*.tar.gz
# Retrieve the logo
                [ -e $DIR_UPDATE/organisme.png ] && cp -f $DIR_UPDATE/organisme.png $DIR_WEB/images/
                chown apache:apache $DIR_WEB/images/organisme.png $DIR_WEB/intercept.php
# Retrieve the security certificates (CA and server)
                [ -e $DIR_UPDATE/alcasar-ca.crt ] && cp -f $DIR_UPDATE/alcasar-ca.crt /etc/pki/CA/
                [ -e $DIR_UPDATE/alcasar-ca.key ] && cp -f $DIR_UPDATE/alcasar-ca.key /etc/pki/CA/private/
                [ -e $DIR_UPDATE/alcasar.crt ] && cp -f $DIR_UPDATE/alcasar.crt /etc/pki/tls/certs/
                [ -e $DIR_UPDATE/alcasar.key ] && cp -f $DIR_UPDATE/alcasar.key /etc/pki/tls/private/
                [ -e $DIR_UPDATE/server-chain.crt ] &&  cp -f $DIR_UPDATE/server-chain.crt /etc/pki/tls/certs/
                chown -R root:apache /etc/pki
                chmod -R 750 /etc/pki
# Import of the users database
                mysql -u$DB_USER -p$radiuspwd < `ls $DIR_UPDATE/radius*`
# Retrieve lacal parameters & Remove blacklist files (now in /usr/local/share)
                [ -d $DIR_UPDATE/etc ] && rm -rf $DIR_UPDATE/etc/alcasar-dnsfilter* && cp -rf $DIR_UPDATE/etc/* $DIR_ETC/
# Retrieve Dansguardian files
                [ -e $DIR_UPDATE/exceptioniplist ] && cp -f $DIR_UPDATE/exceptioniplist /etc/dansguardian/lists/
                [ -e $DIR_UPDATE/exceptionsitelist ] && cp -f $DIR_UPDATE/exceptionsitelist /etc/dansguardian/lists/
                [ -e $DIR_UPDATE/urlregexplist ] && cp -f $DIR_UPDATE/urlregexplist /etc/dansguardian/lists/
                [ -e $DIR_UPDATE/bannedsitelist ] && cp -f $DIR_UPDATE/bannedsitelist /etc/dansguardian/lists/ 
                [ -e $DIR_UPDATE/exceptionurllist ] && cp -f $DIR_UPDATE/exceptionurllist /etc/dansguardian/lists/
                [ -e $DIR_UPDATE/bannedurllist ] && cp -f $DIR_UPDATE/bannedurllist /etc/dansguardian/lists/
                [ -d $DIR_UPDATE/ossi ] && cp -rf $DIR_UPDATE/ossi /etc/dansguardian/lists/blacklists/
                chown -R dansguardian:apache /etc/dansguardian/lists
                chmod -R g+rw /etc/dansguardian/lists
# Adapt DNS/URL filtering
                PARENT_SCRIPT=`basename $0`
                export PARENT_SCRIPT
                $DIR_SBIN/alcasar-bl.sh -adapt
                $DIR_SBIN/alcasar-bl.sh -reload
# retrieve dnsmasq general config file
                [ -e $DIR_UPDATE/dnsmasq ] && cp -f $DIR_UPDATE/dnsmasq /etc/sysconfig/dnsmasq \
                && chown root.root /etc/sysconfig/dnsmasq \
                && chmod 644 /etc/sysconfig/dnsmasq
# admin profile update (admin + manager + backup)
                $DIR_SBIN/alcasar-profil.sh --list
# Start / Stop SSH Daemon
                ssh_active=`grep SSH $CONF_FILE|cut -d"=" -f2`
                if [ $ssh_active = "on" ]
                then
                        /sbin/chkconfig --add sshd
                else
                        /sbin/chkconfig --del sshd
                fi
# Remove the update folder
                rm -rf $DIR_UPDATE
                ;;
        --apply|-apply)
                PTN="\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\/([012]?[0-9]|3[0-2])\b"
                PRIVATE_IP_MASK=`grep ^PRIVATE_IP $CONF_FILE|cut -d"=" -f2`
                check=$(echo $PRIVATE_IP_MASK | egrep $PTN)
                if [[ "$?" -ne 0 ]]
                then 
                        echo "Syntax error for PRIVATE_IP_MASK ($PRIVATE_IP_MASK)"
                        exit 0
                fi
                PUBLIC_IP_MASK=`grep ^PUBLIC_IP $CONF_FILE|cut -d"=" -f2`
                check=$(echo $PUBLIC_IP_MASK | egrep $PTN)
                if [[ "$?" -ne 0 ]]
                then 
                        echo "Syntax error for PUBLIC_IP_MASK ($PUBLIC_IP_MASK)"
                        exit 0
                fi
                PTN="\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b"
                PUBLIC_GATEWAY=`grep ^GW $CONF_FILE|cut -d"=" -f2`
                check=$(echo $PUBLIC_GATEWAY | egrep $PTN)
                if [[ "$?" -ne 0 ]]
                        then 
                        echo "Syntax error for the Gateway IP ($PUBLIC_GATEWAY)"
                        exit 0
                fi
                DNS1=`grep ^DNS1 $CONF_FILE|cut -d"=" -f2`
                check=$(echo $DNS1 | egrep $PTN)
                if [[ "$?" -ne 0 ]]
                then 
                        echo "Syntax error for the IP address of the first DNS server ($DNS1)"
                        exit 0
                fi
                DNS2=`grep ^DNS2 $CONF_FILE|cut -d"=" -f2`
                check=$(echo $DNS2 | egrep $PTN)
                if [[ "$?" -ne 0 ]]
                then 
                        echo "Syntax error for the IP address of the second DNS server ($DNS2)"
                        exit 0
                fi
                PUBLIC_IP=`echo $PUBLIC_IP_MASK | cut -d"/" -f1`
                PUBLIC_NETMASK=`/bin/ipcalc -m $PUBLIC_IP_MASK | cut -d"=" -f2`
                PRIVATE_IP=`echo $PRIVATE_IP_MASK | cut -d"/" -f1`
                PRIVATE_NETMASK=`/bin/ipcalc -m $PRIVATE_IP_MASK | cut -d"=" -f2`
                private_network_calc
                INSTALL_DATE=`grep INSTALL_DATE $CONF_FILE|cut -d"=" -f2`
                ORGANISME=`grep ORGANISM $CONF_FILE|cut -d"=" -f2`
                DOMAIN=`grep DOMAIN $CONF_FILE|cut -d"=" -f2`
                DHCP_mode=`grep DHCP= $CONF_FILE|cut -d"=" -f2`
                if [ "$PARENT_SCRIPT" != "alcasar.sh" ] # don't launch on install stage
                then
                        if [ $DHCP_mode = "off" ]
                        then
                                $DIR_SBIN/alcasar-dhcp.sh --off
                        fi
# Logout everybody
                        $DIR_SBIN/alcasar-logout.sh all         
# Services stop
                        for i in squid ntpd chilli httpd network
                        do
                                [ -e /etc/init.d/$i ] && /etc/init.d/$i stop && killall $i 2>/dev/null
                        done
                fi

# /etc/hosts
                cat <<EOF > /etc/hosts
127.0.0.1       localhost
$PRIVATE_IP     $HOSTNAME $HOSTNAME.$DOMAIN
EOF

# Ext Network Card config
                $SED "s?^IPADDR=.*?IPADDR=$PUBLIC_IP?" /etc/sysconfig/network-scripts/ifcfg-$EXTIF
                $SED "s?^NETMASK=.*?NETMASK=$PUBLIC_NETMASK?" /etc/sysconfig/network-scripts/ifcfg-$EXTIF
                $SED "s?^GATEWAY=.*?GATEWAY=$PUBLIC_GATEWAY?" /etc/sysconfig/network-scripts/ifcfg-$EXTIF
# NTP server
                $SED "/127.0.0.1/!s?^restrict.*?restrict $PRIVATE_NETWORK mask $PRIVATE_NETMASK nomodify notrap?g" /etc/ntp.conf
# host.allow 
                cat <<EOF > /etc/hosts.allow
ALL: LOCAL, 127.0.0.1, localhost, $PRIVATE_IP
sshd: ALL
ntpd: $PRIVATE_NETWORK_SHORT
EOF
# Alcasar Control Center
                $SED "s?^Listen.*?Listen $PRIVATE_IP:80?g" /etc/httpd/conf/httpd.conf
                FIC_MOD_SSL=`find /etc/httpd/modules.d/ -type f -name *mod_ssl.conf`
                $SED "s?^Listen.*?Listen $PRIVATE_IP:443?g" $FIC_MOD_SSL
                $SED "/127.0.0.1/!s?Allow from .*?Allow from $PRIVATE_NETWORK_MASK?g" /etc/httpd/conf/webapps.d/alcasar.conf
# Dialup_Admin
                $SED "s?^nas1_name:.*?nas1_name: alcasar-$ORGANISME?g" /etc/freeradius-web/naslist.conf
                $SED "s?^nas1_ip:.*?nas1_ip: $PRIVATE_IP?g" /etc/freeradius-web/naslist.conf
# coova
                $SED "s?ifconfig.*?ifconfig \$HS_LANIF $PRIVATE_IP?g" /etc/init.d/chilli
                $SED "s?^net.*?net\t\t$PRIVATE_NETWORK_MASK?g" /etc/chilli.conf
                $SED "s?^dns1.*?dns1\t\t$PRIVATE_IP?g" /etc/chilli.conf
                $SED "s?^dns2.*?dns2\t\t$PRIVATE_IP?g" /etc/chilli.conf
                $SED "s?^uamlisten.*?uamlisten\t$PRIVATE_IP?g" /etc/chilli.conf
                $SED "s?^\$organisme = .*?\$organisme = \"$ORGANISME\";?g" /var/www/html/intercept.php /var/www/html/status.php
# dhcp (coova + dnsmasq)
                $DIR_SBIN/alcasar-dhcp.sh -$DHCP_mode
# awstat
                $SED "s?^HostAliases=.*?HostAliases=\"$PRIVATE_IP\"?g" /etc/awstats/awstats.conf
# dnsmasq
                $SED "/127.0.0.1/!s?^listen-address=.*?listen-address=$PRIVATE_IP?g" /etc/dnsmasq.conf /etc/dnsmasq-blackhole.conf
                for i in /etc/dnsmasq.conf /etc/dnsmasq-blackhole.conf
                do
                        $SED "/^server=/d" $i
                        echo "server=$DNS1" >> $i
                        echo "server=$DNS2" >> $i
                done
                $SED "s?^dhcp-range=.*?dhcp-range=$PRIVATE_SECOND_IP,$PRIVATE_LAST_IP,$PRIVATE_NETMASK,12h?g" /etc/dnsmasq.conf
                $SED "s?^dhcp-option=option:router.*?dhcp-option=option:router,$PRIVATE_IP?g" /etc/dnsmasq.conf
# DG + BL
                $SED "s?^filterip.*?filterip = $PRIVATE_IP?g" /etc/dansguardian/dansguardian.conf
# Watchdog
                $SED "s?^PRIVATE_IP=.*?PRIVATE_IP=\"$PRIVATE_IP\"?g" $DIR_BIN/alcasar-watchdog.sh
# SSHD
                $SED "/^ListenAddress/d" /etc/ssh/sshd_config
#               $SED "s?^#ListenAddress 0\.0\.0\.0?ListenAddress $PRIVATE_IP?g" /etc/ssh/sshd_config
                $SED "/ListenAddress 0.0.0.0.*/a\ListenAddress $PUBLIC_IP" /etc/ssh/sshd_config
                $SED "/ListenAddress $PUBLIC_IP/a\ListenAddress $PRIVATE_IP" /etc/ssh/sshd_config
# Prompts
                $SED "s?^ORGANISME.*?ORGANISME=$ORGANISME?g" /etc/bashrc
# sudoers
                $SED "s?^Host_Alias.*?Host_Alias        LAN_ORG=$PRIVATE_NETWORK/$PRIVATE_NETMASK,localhost             #réseau de l'organisme?g" /etc/sudoers
                if [ "$PARENT_SCRIPT" != "alcasar.sh" ] # don't launch on install stage
                then
# Services start
                        for i in network squid ntpd chilli httpd 
                        do
                                [ -e /etc/init.d/$i ] && /etc/init.d/$i start
                        done
# Reload BL (restart DG, dnsmasq & iptables)
                        $DIR_SBIN/alcasar-bl.sh -reload
                fi
# Start / Stop SSH Daemon
                ssh_active=`grep SSH $CONF_FILE|cut -d"=" -f2`
                if [ $ssh_active = "on" ]
                then
                        /bin/systemctl enable sshd.service
                        if [ "$PARENT_SCRIPT" != "alcasar.sh" ] # don't launch on install stage
                        then
                                /bin/systemctl start sshd.service
                        fi
                else
                        /bin/systemctl disable sshd.service
                        if [ "$PARENT_SCRIPT" != "alcasar.sh" ] # don't launch on install stage
                        then
                                /bin/systemctl stop sshd.service
                        fi
                fi
                ;;
        *)
                echo "Argument inconnu :$1";
                echo "$usage"
                exit 1
                ;;
esac