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#!/bin/bash
# $Id: alcasar-conf.sh 2603 2018-08-20 00:05:21Z tom.houdayer $

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

# Ce script permet de mettre à jour d'ALCASAR
#       - création de l'archive des fichiers de configuration "/var/tmp/alcasar-conf.tar.gz" (alcasar-conf.sh -create)
#       - chargement de l'archive de fichiers de configuration lors de la mise à jour d'un alcasar (alcasar-conf -load). Le cas échéant, c'est ici qu'on met à jour les fichiers entre versions
#       - application des directives du fichier de conf central "/usr/local/etc/alcasar.conf" à chaud (alcasar-conf -apply)
# This script allows ALCASAR update
#       - create the configuration files backup "/var/tmp/alcasar-conf.tar.gz" (alcasar-conf.sh -create)
#       - load the backup of configuration files during the update process (alcasar-conf -load). If needed, it's here we update files between versions
#       - apply ALCASAR central configuration file "/usr/local/etc/alcasar.conf" when hot modification are needed (alcasar-conf -apply)

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="/var/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"                                # scripts directory
DIR_ETC="/usr/local/etc"                                # conf directory
DIR_SHARE="/usr/local/share"                            # data directory
DIR_BLACKLIST="/etc/e2guardian/lists/blacklists"        # Toulouse BL directory
CONF_FILE="$DIR_ETC/alcasar.conf"                       # main alcasar conf file
EXTIF=`grep ^EXTIF= $CONF_FILE|cut -d"=" -f2`           # EXTernal InterFace
INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`           # INTernal InterFace
MTU=`grep ^PUBLIC_MTU= $CONF_FILE|cut -d"=" -f2`
DHCP_mode=`grep ^DHCP= $CONF_FILE|cut -d"=" -f2`
INT_DNS_mode=`grep ^INT_DNS_ACTIVE= $CONF_FILE|cut -d"=" -f2`
LDAP_mode=`grep ^LDAP= $CONF_FILE|cut -d"=" -f2`
HOSTNAME=`grep ^HOSTNAME= $CONF_FILE|cut -d"=" -f2`
DOMAIN=`grep ^DOMAIN= $CONF_FILE|cut -d"=" -f2`
PASSWD_FILE="/root/ALCASAR-passwords.txt"
DB_USER=$(grep '^db_user=' $PASSWD_FILE | cut -d'=' -f 2-)
DB_PASS=$(grep '^db_password=' $PASSWD_FILE | cut -d'=' -f 2-)
SED="/bin/sed -i"
DNS1=`grep ^DNS1= $CONF_FILE | cut -d'=' -f2`                   # server DNS1 (for WL domain names)
DOMAIN=${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_ip_ending=`echo $PRIVATE_IP | cut -d"." -f4`                                                                    # last octet of LAN address
        PRIVATE_FIRST_IP=$PRIVATE_IP                                                                                                                    # First network address (ex.: 192.168.182.1)
        PRIVATE_SECOND_IP=`echo $PRIVATE_IP | cut -d"." -f1-3`"."`expr $private_ip_ending + 1`  # 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)
        PRIVATE_MAC=`/sbin/ip link show $INTIF | grep ether | cut -d" " -f6| sed 's/:/-/g'| awk '{print toupper($0)}'`  # MAC address of INTIF
}

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
# backup the users database  (test to delete in future version)
                if [ -e $DIR_BIN/alcasar-mysql.sh ]; then
                        $DIR_BIN/alcasar-mysql.sh --dump
                else
                        /usr/local/sbin/alcasar-mysql.sh --dump
                fi
                cp /var/Save/base/`ls -1t /var/Save/base|head -1` $DIR_UPDATE
# backup the logo
                cp -f $DIR_WEB/images/organisme.png $DIR_UPDATE
# backup BL/WL custom files
                mkdir $DIR_UPDATE/custom_bl
                for i in exceptioniplist urlregexplist exceptionsitelist bannedsitelist exceptionurllist bannedurllist
                do
                        if [ -d /etc/dansguardian ]; then
                                cp /etc/dansguardian/lists/$i $DIR_UPDATE/custom_bl/ # before V3.3
                        else
                                cp /etc/e2guardian/lists/$i $DIR_UPDATE/custom_bl/ # since V3.3
                        fi
                done
                cp -rf $DIR_BLACKLIST/ossi-* $DIR_UPDATE/custom_bl/ 2>/dev/null
# backup of different conf files (main conf file, filtering, digest, /etc/hosts, etc.)
                mkdir $DIR_UPDATE/etc/
                cp -rf $DIR_ETC/* $DIR_UPDATE/etc/
                cp /etc/hosts $DIR_UPDATE/etc/
# backup of the security certificates (server & CA)
                cp -f /etc/pki/tls/certs/alcasar.crt* $DIR_UPDATE
                cp -f /etc/pki/tls/private/alcasar.key* $DIR_UPDATE
                [ -e /etc/pki/tls/private/alcasar.pem ] && cp -f /etc/pki/tls/private/alcasar.pem $DIR_UPDATE # since V3.3
                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 # autosigned and official if exist
                else
                        cp -f /etc/pki/tls/certs/alcasar.crt $DIR_UPDATE/server-chain.crt
                fi
# archive file creation
                cd /var/tmp
                tar -cf alcasar-conf.tar conf/
                gzip -f alcasar-conf.tar
                rm -rf $DIR_UPDATE
                ;;

        --load|-load)
                cd /var/tmp
                tar -xf alcasar-conf*.tar.gz
#########################   modifications between versions  #######################
# Retrieve the previous version
                PREVIOUS_VERSION=`grep ^VERSION= $DIR_UPDATE/etc/alcasar.conf|cut -d"=" -f2`
                MAJ_PREVIOUS_VERSION=`echo $PREVIOUS_VERSION|cut -d"." -f1`
                MIN_PREVIOUS_VERSION=`echo $PREVIOUS_VERSION|cut -d"." -f2`
                UPD_PREVIOUS_VERSION=`echo $PREVIOUS_VERSION|cut -d"." -f3|cut -c1`
##  From 3.2.0 & 3.2.1  ##
                if [ $MAJ_PREVIOUS_VERSION == "3" ] && [ $MIN_PREVIOUS_VERSION == "2" ]
                then
        ## rewrite the file managing domain name resolution (local & remote). Hostnames resolutions are now in /etc/hosts
                        cat << EOF > $DIR_UPDATE/etc/alcasar-dns-name
# Vous pouvez définir ici votre nom de domain local ('localdomain' par défaut)
# Here you can define your local domain name ('localdomain' by default)
local=/$DOMAIN/
domain=$DOMAIN

## Ajouter une ligne pour chaque nom de domaine géré par un autre seveur DNS
## Add one line for each domain name managed by an other DNS server
## server=/<your_domain>/<@IP_domain_server>
## Exemple for an A.D. domain :  server=/Your.Domain.AD/110.120.100.100
## Exemple for an other domain : server=/an_other_domain/10.20.30.40

## INFO : local hostnames are resolved in /etc/hosts file
EOF
        ## rewrite /etc/hosts file managing hostname resolution
                        PRIVATE_IP=`grep ^PRIVATE_IP= $CONF_FILE|cut -d"=" -f2|cut -d"/" -f1`
                        HOSTNAME=`grep ^HOSTNAME= $CONF_FILE|cut -d"=" -f2`
                        domainNames="$HOSTNAME $HOSTNAME.$DOMAIN"
                        [ "$HOSTNAME" != 'alcasar' ] && domainNames="alcasar $domainNames"
                        cat << EOF > $DIR_UPDATE/etc/hosts
127.0.0.1       localhost
$PRIVATE_IP     $domainNames
EOF
        ## apache & dansguardian are replaced with lighttpd & E²guardian
                        rm_rpm="apache apache-mod_php apache-mod_ssl dansguardian"
                        /usr/sbin/urpme --auto -a $rm_rpm 2>/dev/null
                        /usr/sbin/urpme --auto --auto-orphans
                        rm -rf /etc/httpd/ /var/log/httpd/ /var/dansguardian/ /etc/dansguardian/
        ## lighttpd need a .pem certificate (aggregation with private key & server crt)
                        (cat $DIR_UPDATE/alcasar.key; echo; cat $DIR_UPDATE/alcasar.crt) > $DIR_UPDATE/alcasar.pem
                fi
## since v3.3.1:
        # add "SMS=off" in conf file
                if [ $(grep -c '^SMS=' $CONF_FILE) -eq 0 ]; then
                        if [ $(grep -c '^\$service_SMS_status = true;' /var/www/html/autoregistrationinfo.php) -ne 0 ]; then
                                echo "SMS=on" >> $CONF_FILE
                        else
                                echo "SMS=off" >> $CONF_FILE
                        fi
                fi
                if [ $(grep -c '^SMS_NUM=' $CONF_FILE) -eq 0 ]; then
                        num=$(grep "^\\\$current_num\s\?=\s\?'.\+';\$" /var/www/html/autoregistrationinfo.php | sed "s@^\\\$current_num\s\?=\s\?'\(.\+\)';\$@\1@")
                        [ "$num" == 'XXXXXXXXXX' ] && num=''
                        echo "SMS_NUM=$num" >> $CONF_FILE
                fi
######################   End of modifications between versions  #######################
# 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)
                cp -f $DIR_UPDATE/alcasar-ca.crt /etc/pki/CA/
                cp -f $DIR_UPDATE/alcasar-ca.key /etc/pki/CA/private/
                cp -f $DIR_UPDATE/alcasar.crt /etc/pki/tls/certs/
                cp -f $DIR_UPDATE/alcasar.key /etc/pki/tls/private/
                cp -f $DIR_UPDATE/alcasar.pem /etc/pki/tls/private/     
                [ -e $DIR_UPDATE/server-chain.crt ] && cp -f $DIR_UPDATE/server-chain.crt* /etc/pki/tls/certs/ # autosigned and official if exist
                chown -R root:apache /etc/pki
                chmod -R 750 /etc/pki
# Import of the users database
                gzip -dc < `ls $DIR_UPDATE/alcasar-users-database*` | mysql -u$DB_USER -p$DB_PASS
# Retrieve local parameters
                cp -rf $DIR_UPDATE/etc/* $DIR_ETC/
                mv -f $DIR_UPDATE/etc/hosts /etc/hosts
                chmod 755 /etc/hosts
# Retrieve BL/WL custom files
                cp -f $DIR_UPDATE/custom_bl/exceptioniplist /etc/e2guardian/lists/
                cp -f $DIR_UPDATE/custom_bl/exceptionsitelist /etc/e2guardian/lists/
                cp -f $DIR_UPDATE/custom_bl/urlregexplist /etc/e2guardian/lists/
                cp -f $DIR_UPDATE/custom_bl/bannedsitelist /etc/e2guardian/lists/ 
                cp -f $DIR_UPDATE/custom_bl/exceptionurllist /etc/e2guardian/lists/
                cp -f $DIR_UPDATE/custom_bl/bannedurllist /etc/e2guardian/lists/
                cp -rf $DIR_UPDATE/custom_bl/ossi-* $DIR_BLACKLIST/ 2>/dev/null
                chown -R e2guardian:apache /etc/e2guardian/lists
                chmod -R g+rw /etc/e2guardian/lists
# Adapt DNS/URL filtering
                PARENT_SCRIPT=`basename $0`
                export PARENT_SCRIPT
                $DIR_BIN/alcasar-bl.sh -cat_choice
                $DIR_BIN/alcasar-bl.sh -reload
# admin profile update (admin + manager + backup)
                $DIR_BIN/alcasar-profil.sh --list
# Start / Stop SSH Daemon
                ssh_active=`grep "^SSH=" $CONF_FILE|cut -d"=" -f2`
                if [ $ssh_active = "on" ]
                then
                        /usr/bin/systemctl -q enable sshd.service
                else
                        /usr/bin/systemctl -q disable sshd.service
                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= $CONF_FILE|cut -d"=" -f2`
                PTN="\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b"
                if [[ "$PUBLIC_IP_MASK" == "dhcp" ]]
                then
                        PUBLIC_GATEWAY="dhcp"

                else
                        check=$(echo $PUBLIC_IP_MASK | egrep $PTN)
                        if [[ "$?" -ne 0 ]]
                        then 
                                echo "Syntax error for PUBLIC_IP_MASK ($PUBLIC_IP_MASK)"
                                exit 0
                        fi
                        PUBLIC_IP=`echo $PUBLIC_IP_MASK | cut -d"/" -f1`
                        PUBLIC_NETMASK=`/bin/ipcalc -m $PUBLIC_IP_MASK | cut -d"=" -f2`
                        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
                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
                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-`
                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" ] || [ $DHCP_mode = "Off" ] || [ $DHCP_mode = "OFF" ]
                        then
                                $DIR_BIN/alcasar-dhcp.sh --off
                        else
                                $DIR_BIN/alcasar-dhcp.sh --on
                        fi

# Set the local DNS (or not)
                        if [ $INT_DNS_mode = "on" ] || [ $INT_DNS_mode = "On" ] || [ $INT_DNS_mode = "ON" ]
                        then
                                $DIR_BIN/alcasar-dns-local.sh --on
                        else
                                $DIR_BIN/alcasar-dns-local.sh --off
                        fi

# Logout everybody
                        $DIR_BIN/alcasar-logout.sh all          
# Services stop
                        echo -n "Stop services : "
                        for i in ntpd tinyproxy e2guardian dnsmasq dnsmasq-whitelist dnsmasq-blacklist dnsmasq-blackhole chilli network lighttpd
                        do
                                /usr/bin/systemctl stop $i && echo -n "$i, "
                        done
                        echo
                fi
# EXTIF config
                if [ $PUBLIC_IP_MASK == "dhcp" ]
                then
                        cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-$EXTIF
DEVICE=$EXTIF
BOOTPROTO=dhcp
DNS1=127.0.0.1
PEERDNS=no
RESOLV_MODS=yes
ONBOOT=yes
METRIC=10
MII_NOT_SUPPORTED=yes
IPV6INIT=no
IPV6TO4INIT=no
ACCOUNTING=no
USERCTL=no
MTU=$MTU
NOZEROCONF=yes
EOF
                else    
                        cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-$EXTIF
DEVICE=$EXTIF
BOOTPROTO=static
IPADDR=$PUBLIC_IP
NETMASK=$PUBLIC_NETMASK
GATEWAY=$PUBLIC_GATEWAY
DNS1=127.0.0.1
RESOLV_MODS=yes
ONBOOT=yes
METRIC=10
MII_NOT_SUPPORTED=yes
IPV6INIT=no
IPV6TO4INIT=no
ACCOUNTING=no
USERCTL=no
MTU=$MTU
NOZEROCONF=yes
EOF
                fi
# INTIF config (for bypass mode only)
                $SED "s?^IPADDR=.*?IPADDR=$PRIVATE_IP?" /etc/sysconfig/network-scripts/bypass-ifcfg-$INTIF
                $SED "s?^NETMASK=.*?NETMASK=$PRIVATE_NETMASK?" /etc/sysconfig/network-scripts/bypass-ifcfg-$INTIF
# 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
# Set hostname
                hostnamectl set-hostname $HOSTNAME.$DOMAIN
# /etc/hosts
                domainNames="$HOSTNAME $HOSTNAME.$DOMAIN"
                [ "$HOSTNAME" != 'alcasar' ] && domainNames="alcasar $domainNames"
                $SED "/^$PRIVATE_IP\t/d"  /etc/hosts
                $SED "/\s$HOSTNAME\s\$/d" /etc/hosts
                [ "$HOSTNAME" != 'alcasar' ] && $SED "/\salcasar\s\$/d" /etc/hosts
                echo "$PRIVATE_IP       $domainNames" >> /etc/hosts
# MOTD
                $SED "s@'https://\(.\+\)/acc'@'https://$HOSTNAME.$DOMAIN/acc'@" /etc/mageia-release
# Lighttpd
                $SED "s?^server\.bind.*?server\.bind = \"$HOSTNAME.$DOMAIN\"?g" /etc/lighttpd/lighttpd.conf
                $SED 's/^$SERVER\["socket"\] == ".*:443.*/$SERVER\["socket"\] == "'"$HOSTNAME.$DOMAIN"':443" {/g' /etc/lighttpd/vhosts.d/alcasar.conf
                $SED "s/^\([\t ]*\)var.server_name.*/\1var.server_name = \"$HOSTNAME.$DOMAIN\"/g" /etc/lighttpd/vhosts.d/alcasar.conf
# FreeRADIUS Web
                $SED "s?^nas1_name:.*?nas1_name: alcasar-$ORGANISME?g" /etc/freeradius-web/naslist.conf
                $SED "s?^nas1_ip:.*?nas1_ip: $PRIVATE_IP?g" /etc/freeradius-web/naslist.conf
# coova
                $SED "s/^uamallowed.*/uamallowed\t$HOSTNAME,$HOSTNAME.$DOMAIN/g" /etc/chilli.conf
                $SED "s/^locationname.*/locationname\t$HOSTNAME.$DOMAIN/g" /etc/chilli.conf
                [ `grep ^HTTPS_LOGIN= $CONF_FILE | cut -d'=' -f2` == "on" ] && chilli_login_protocol="https" || chilli_login_protocol="http"
                $SED "s/^uamserver.*/uamserver\t$chilli_login_protocol:\/\/$HOSTNAME.$DOMAIN\/intercept.php/" /etc/chilli.conf
                $SED "s/^radiusnasid.*/radiusnasid\t$HOSTNAME.$DOMAIN/g" /etc/chilli.conf
                $SED "s?^net.*?net\t\t$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
                # modify the DHCP static ip file. Reserve the second IP address for INTIF (the first one is for tun0). Keep previous entries
                $SED "s?^$PRIVATE_MAC.*?$PRIVATE_MAC $PRIVATE_SECOND_IP?" $DIR_ETC/alcasar-ethers $DIR_ETC/alcasar-ethers-info
# dnsmasq
                $SED "/127.0.0.1/!s?^listen-address=.*?listen-address=$PRIVATE_IP?g" /etc/dnsmasq.conf /etc/dnsmasq-blacklist.conf /etc/dnsmasq-whitelist.conf /etc/dnsmasq-blackhole.conf
                for i in /etc/dnsmasq.conf /etc/dnsmasq-blacklist.conf
                do
                        $SED "/^server=/d" $i
                        echo "server=$DNS1" >> $i
                        echo "server=$DNS2" >> $i
                done
                $SED "s?^address=.*?address=/#/$PRIVATE_IP?g" /etc/dnsmasq-blackhole.conf
                for i in `ls $DIR_SHARE/dnsmasq-wl`
                do
                        cat $DIR_SHARE/dnsmasq-wl/$i|cut -d"/" -f1,2 > /tmp/tmp_file
                        $SED "s/$/\/$DNS1/" /tmp/tmp_file
                        mv -f /tmp/tmp_file $DIR_SHARE/dnsmasq-wl/$i
                done
                chown root:apache $DIR_SHARE/dnsmasq-wl/*
                chmod 660 $DIR_SHARE/dnsmasq-wl/*
                $SED "s@^\([#]\?\)dhcp-range=.*@\1dhcp-range=$PRIVATE_SECOND_IP,$PRIVATE_LAST_IP,$PRIVATE_NETMASK,12h@" /etc/dnsmasq.conf
                $SED "s@^\([#]\?\)dhcp-option=option:router.*@\1dhcp-option=option:router,$PRIVATE_IP@" /etc/dnsmasq.conf
                $SED "s@^\([#]\?\)dhcp-option=option:ntp-server.*@\1dhcp-option=option:ntp-server,$PRIVATE_IP@" /etc/dnsmasq.conf
                $SED "s?^local=.*?local=/$DOMAIN/?g" $DIR_ETC/alcasar-dns-name
                $SED "s?^domain=.*?domain=$DOMAIN?g" $DIR_ETC/alcasar-dns-name
# tinyproxy                     
                $SED "s?^Listen.*?Listen $PRIVATE_IP?g" /etc/tinyproxy/tinyproxy.conf
# DG + BL
                $SED "s?^filterip.*?filterip = $PRIVATE_IP?g" /etc/e2guardian/e2guardian.conf
# Watchdog
                $SED "s?^PRIVATE_IP=.*?PRIVATE_IP=\"$PRIVATE_IP\"?g" $DIR_BIN/alcasar-watchdog.sh
# 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
                        /usr/bin/systemctl start network && echo -n "Start service : network" && sleep 1
                        $DIR_BIN/alcasar-dhcp.sh -$DHCP_mode && echo -n ", chilli" # apply DHCP mode and start CoovaChilli
                        for i in dnsmasq dnsmasq-blackhole tinyproxy ntpd
                        do
                                sleep 1
                                /usr/bin/systemctl start $i && echo -n ", $i"
                        done
                        $DIR_BIN/alcasar-bl.sh -reload && echo -n ", dnsmasq-blacklist, dnsmasq-whitelist, e2guardian, iptables"
                        /usr/bin/systemctl restart lighttpd && echo -n ", lighttpd"
                fi
# Start / Stop SSH Daemon
                ssh_active=`grep ^SSH= $CONF_FILE|cut -d"=" -f2`
                if [ $ssh_active = "on" ]
                then
                        /usr/bin/systemctl enable sshd.service
                        if [ "$PARENT_SCRIPT" != "alcasar.sh" ] # don't launch on install stage
                        then
                                /usr/bin/systemctl start sshd.service
                        fi
                else
                        /usr/bin/systemctl disable sshd.service
                        if [ "$PARENT_SCRIPT" != "alcasar.sh" ] # don't launch on install stage
                        then
                                /usr/bin/systemctl stop sshd.service
                        fi
                fi
# Start / Stop LDAP authentification
                if [ LDAP_mode = "on" ] || [ $LDAP_mode = "On" ] || [ $LDAP_mode = "ON" ]
                then
                        $DIR_BIN/alcasar-ldap.sh
                fi
                echo
                ;;
        *)
                echo "Argument inconnu :$1";
                echo "$usage"
                exit 1
                ;;
esac