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#!/bin/bash
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#!/bin/bash
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# $Id: alcasar-iptables.sh 2530 2018-04-20 14:21:35Z lucas.echard $
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# $Id: alcasar-iptables.sh 2642 2018-09-24 17:39:20Z rexy $
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# Script de mise en place des regles du parefeu d'Alcasar (mode normal)
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# Script de mise en place des regles du parefeu d'Alcasar (mode normal)
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# This script writes the netfilter rules for ALCASAR
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# This script writes the netfilter rules for ALCASAR
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# Rexy - 3abtux - CPN
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# Rexy - 3abtux - CPN
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#
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#
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# Reminders
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# Reminders
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# There are four channels for log :
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# There are four channels for log :
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# 1 tracability of the consultation equipment with The 'Netflow' kernel module (iptables target = NETFLOW);
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# 1 tracability of the consultation equipment with The 'Netflow' kernel module (iptables target = NETFLOW);
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# 2 protection of ALCASAR with the Ulog group 1 (default group)
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# 2 protection of ALCASAR with the Ulog group 1 (default group)
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# 3 SSH on ALCASAR with the Ulog group 2;
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# 3 SSH on ALCASAR with the Ulog group 2;
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# 4 extern access attempts on ALCASAR with the Ulog group 3.
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# 4 extern access attempts on ALCASAR with the Ulog group 3.
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# The bootps/dhcp (67) port is always open on tun0/INTIF by coova
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# The bootps/dhcp (67) port is always open on tun0/INTIF by coova
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CONF_FILE="/usr/local/etc/alcasar.conf"
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CONF_FILE="/usr/local/etc/alcasar.conf"
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EXTIF=`grep ^EXTIF= $CONF_FILE|cut -d"=" -f2` # EXTernal InterFace
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EXTIF=`grep ^EXTIF= $CONF_FILE|cut -d"=" -f2` # EXTernal InterFace
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INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2` # INTernal InterFace
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INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2` # INTernal InterFace
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TUNIF="tun0" # listen device for chilli daemon
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TUNIF="tun0" # listen device for chilli daemon
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private_ip_mask=`grep ^PRIVATE_IP= $CONF_FILE|cut -d"=" -f2`
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private_ip_mask=`grep ^PRIVATE_IP= $CONF_FILE|cut -d"=" -f2`
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private_ip_mask=${private_ip_mask:=192.168.182.1/24}
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private_ip_mask=${private_ip_mask:=192.168.182.1/24}
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PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1` # ALCASAR LAN IP address
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PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1` # ALCASAR LAN IP address
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private_network=`/bin/ipcalc -n $private_ip_mask|cut -d"=" -f2` # LAN IP address (ie.: 192.168.182.0)
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private_network=`/bin/ipcalc -n $private_ip_mask|cut -d"=" -f2` # LAN IP address (ie.: 192.168.182.0)
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private_prefix=`/bin/ipcalc -p $private_ip_mask|cut -d"=" -f2` # LAN prefix (ie. 24)
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private_prefix=`/bin/ipcalc -p $private_ip_mask|cut -d"=" -f2` # LAN prefix (ie. 24)
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PRIVATE_NETWORK_MASK=$private_network/$private_prefix # Lan IP address + prefix (192.168.182.0/24)
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PRIVATE_NETWORK_MASK=$private_network/$private_prefix # Lan IP address + prefix (192.168.182.0/24)
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public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2` # ALCASAR WAN IP address
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public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2` # ALCASAR WAN IP address
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if [[ "$public_ip_mask" == "dhcp" ]]
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if [[ "$public_ip_mask" == "dhcp" ]]
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then
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then
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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"
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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"
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public_ip_mask=`ip addr show $EXTIF | egrep -o $PTN`
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public_ip_mask=`ip addr show $EXTIF | egrep -o $PTN`
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fi
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fi
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PUBLIC_IP=`echo $public_ip_mask | cut -d"/" -f1`
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PUBLIC_IP=`echo $public_ip_mask | cut -d"/" -f1`
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dns1=`grep ^DNS1= $CONF_FILE|cut -d"=" -f2`
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dns1=`grep ^DNS1= $CONF_FILE|cut -d"=" -f2`
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dns2=`grep ^DNS2= $CONF_FILE|cut -d"=" -f2`
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dns2=`grep ^DNS2= $CONF_FILE|cut -d"=" -f2`
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dns1=${dns1:=208.67.220.220}
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dns1=${dns1:=208.67.220.220}
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dns2=${dns2:=208.67.222.222}
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dns2=${dns2:=208.67.222.222}
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DNSSERVERS="$dns1,$dns2" # first and second public DNS servers
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DNSSERVERS="$dns1,$dns2" # first and second public DNS servers
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BL_IP_CAT="/usr/local/share/iptables-bl-enabled" # categories files of the BlackListed IP
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BL_IP_CAT="/usr/local/share/iptables-bl-enabled" # categories files of the BlackListed IP
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WL_IP_CAT="/usr/local/share/iptables-wl-enabled" # categories files of the WhiteListed IP
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WL_IP_CAT="/usr/local/share/iptables-wl-enabled" # categories files of the WhiteListed IP
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TMP_users_set_save="/tmp/users_set_save" # tmp file for backup users set
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TMP_users_set_save="/tmp/users_set_save" # tmp file for backup users set
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TMP_set_save="/tmp/ipset_save" # tmp file for blacklist and whitelist creation
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TMP_set_save="/tmp/ipset_save" # tmp file for blacklist and whitelist creation
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SSH=`grep ^SSH= $CONF_FILE|cut -d"=" -f2` # sshd active (on/off)
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SSH=`grep ^SSH= $CONF_FILE|cut -d"=" -f2` # sshd active (on/off)
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SSH=${SSH:=off}
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SSH=${SSH:=off}
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SSH_ADMIN_FROM=`grep ^SSH_ADMIN_FROM= $CONF_FILE|cut -d"=" -f2`
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SSH_ADMIN_FROM=`grep ^SSH_ADMIN_FROM= $CONF_FILE|cut -d"=" -f2`
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SSH_ADMIN_FROM=${SSH_ADMIN_FROM:="0.0.0.0/0.0.0.0"} # WAN IP address to reduce ssh access (all ip allowed on LAN side)
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SSH_ADMIN_FROM=${SSH_ADMIN_FROM:="0.0.0.0/0.0.0.0"} # WAN IP address to reduce ssh access (all ip allowed on LAN side)
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IPTABLES="/sbin/iptables"
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IPTABLES="/sbin/iptables"
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IP_REHABILITEES="/etc/e2guardian/lists/exceptioniplist" # Rehabilitated IP
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IP_REHABILITEES="/etc/e2guardian/lists/exceptioniplist" # Rehabilitated IP
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SITE_DIRECT="/usr/local/etc/alcasar-site-direct" # Site Direct (no havp and no filtrage) for user BL
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SITE_DIRECT="/usr/local/etc/alcasar-site-direct" # Site Direct (no havp and no filtrage) for user BL
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# Sauvegarde des SET des utilisateurs connectés si ils existent
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# Sauvegarde des SET des utilisateurs connectés si ils existent
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# Saving SET of connected users if it exists
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# Saving SET of connected users if it exists
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ipset list not_filtered 1>/dev/null 2>&1
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ipset list not_filtered 1>/dev/null 2>&1
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if [ $? -eq 0 ];
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if [ $? -eq 0 ];
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then
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then
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ipset save not_filtered > $TMP_users_set_save
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ipset save not_filtered > $TMP_users_set_save
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ipset save havp >> $TMP_users_set_save
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ipset save havp >> $TMP_users_set_save
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ipset save havp_bl >> $TMP_users_set_save
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ipset save havp_bl >> $TMP_users_set_save
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ipset save havp_wl >> $TMP_users_set_save
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ipset save havp_wl >> $TMP_users_set_save
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ipset save proto_0 >> $TMP_users_set_save
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ipset save proto_0 >> $TMP_users_set_save
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ipset save proto_1 >> $TMP_users_set_save
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ipset save proto_1 >> $TMP_users_set_save
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ipset save proto_2 >> $TMP_users_set_save
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ipset save proto_2 >> $TMP_users_set_save
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ipset save proto_3 >> $TMP_users_set_save
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ipset save proto_3 >> $TMP_users_set_save
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fi
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fi
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# loading of NetFlow probe (ipt_NETFLOW kernel module)
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# loading of NetFlow probe (ipt_NETFLOW kernel module)
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modprobe ipt_NETFLOW destination=127.0.0.1:2055
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modprobe ipt_NETFLOW destination=127.0.0.1:2055
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# Effacement des règles existantes
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# Effacement des règles existantes
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# Flush all existing rules
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# Flush all existing rules
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$IPTABLES -F
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$IPTABLES -F
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$IPTABLES -t nat -F
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$IPTABLES -t nat -F
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$IPTABLES -t mangle -F
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$IPTABLES -t mangle -F
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$IPTABLES -F INPUT
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$IPTABLES -F INPUT
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$IPTABLES -F FORWARD
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$IPTABLES -F FORWARD
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$IPTABLES -F OUTPUT
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$IPTABLES -F OUTPUT
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# Suppression des chaines utilisateurs sur les tables filter et nat
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# Suppression des chaines utilisateurs sur les tables filter et nat
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# Flush non default rules on filter and nat tables
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# Flush non default rules on filter and nat tables
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$IPTABLES -X
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$IPTABLES -X
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$IPTABLES -t nat -X
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$IPTABLES -t nat -X
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# Stratégies par défaut
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# Stratégies par défaut
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# Default policies
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# Default policies
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$IPTABLES -P INPUT DROP
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$IPTABLES -P INPUT DROP
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$IPTABLES -P FORWARD DROP
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$IPTABLES -P FORWARD DROP
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$IPTABLES -P OUTPUT DROP
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$IPTABLES -P OUTPUT DROP
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$IPTABLES -t nat -P PREROUTING ACCEPT
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$IPTABLES -t nat -P PREROUTING ACCEPT
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$IPTABLES -t nat -P POSTROUTING ACCEPT
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$IPTABLES -t nat -P POSTROUTING ACCEPT
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$IPTABLES -t nat -P OUTPUT ACCEPT
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$IPTABLES -t nat -P OUTPUT ACCEPT
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#############################
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#############################
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# IPSET #
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# IPSET #
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#############################
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#############################
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# destruction de tous les SET
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# destruction de tous les SET
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# destroy all SET
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# destroy all SET
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ipset flush
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ipset flush
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ipset destroy
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ipset destroy
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###### BL set ###########
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###### BL set ###########
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# Calcul de la taille / Compute the length
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# Calcul de la taille / Compute the length
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bl_set_length=$(wc -l $BL_IP_CAT/* | awk '{print $1}' | tail -n 1)
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bl_set_length=$(wc -l $BL_IP_CAT/* | awk '{print $1}' | tail -n 1)
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# Chargement / loading
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# Chargement / loading
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echo "create bl_ip_blocked hash:net family inet hashsize 1024 maxelem $bl_set_length" > $TMP_set_save
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echo "create bl_ip_blocked hash:net family inet hashsize 1024 maxelem $bl_set_length" > $TMP_set_save
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for category in `ls -1 $BL_IP_CAT | cut -d '@' -f1`
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for category in `ls -1 $BL_IP_CAT | cut -d '@' -f1`
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do
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do
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cat $BL_IP_CAT/$category >> $TMP_set_save
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cat $BL_IP_CAT/$category >> $TMP_set_save
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done
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done
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ipset -! restore < $TMP_set_save
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ipset -! restore < $TMP_set_save
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rm -f $TMP_set_save
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rm -f $TMP_set_save
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# Suppression des ip réhabilitées / Removing of rehabilitated ip
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# Suppression des ip réhabilitées / Removing of rehabilitated ip
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for ip in $(cat $IP_REHABILITEES)
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for ip in $(cat $IP_REHABILITEES)
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do
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do
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ipset del bl_ip_blocked $ip
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ipset del bl_ip_blocked $ip
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done
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done
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# rajout exception havp_bl --> Site en direct pour les Utilisateurs filtrés
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# rajout exception havp_bl --> Site en direct pour les Utilisateurs filtrés
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ipset create site_direct hash:net hashsize 1024
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ipset create site_direct hash:net hashsize 1024
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for site in $(cat $SITE_DIRECT)
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for site in $(cat $SITE_DIRECT)
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do
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do
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ipset add site_direct $site
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ipset add site_direct $site
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done
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done
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###### WL set ###########
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###### WL set ###########
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# taille fixe, car peupler par dnsmasq / fixe length due to dnsmasq dynamic loading
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# taille fixe, car peupler par dnsmasq / fixe length due to dnsmasq dynamic loading
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wl_set_length=65536
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wl_set_length=65536
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# Chargement Loading
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# Chargement Loading
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echo "create wl_ip_allowed hash:net family inet hashsize 1024 maxelem $wl_set_length" > $TMP_set_save
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echo "create wl_ip_allowed hash:net family inet hashsize 1024 maxelem $wl_set_length" > $TMP_set_save
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#get ip-wl files from ACC
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#get ip-wl files from ACC
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for category in `ls -1 $WL_IP_CAT |cut -d '@' -f1`
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for category in `ls -1 $WL_IP_CAT |cut -d '@' -f1`
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do
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do
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cat $WL_IP_CAT/$category >> $TMP_set_save
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cat $WL_IP_CAT/$category >> $TMP_set_save
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done
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done
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ipset -! restore < $TMP_set_save
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ipset -! restore < $TMP_set_save
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rm -f $TMP_set_save
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rm -f $TMP_set_save
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# Restoration des SET des utilisateurs connectés si ils existent sinon création des SET
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# Restoration des SET des utilisateurs connectés si ils existent sinon création des SET
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# Restoring the connected users SETs if available, otherwise creating SETs
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# Restoring the connected users SETs if available, otherwise creating SETs
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if [ -e $TMP_users_set_save ];
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if [ -e $TMP_users_set_save ];
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then
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then
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ipset -! restore < $TMP_users_set_save
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ipset -! restore < $TMP_users_set_save
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rm -f $TMP_users_set_save
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rm -f $TMP_users_set_save
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else
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else
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ipset create not_filtered hash:ip hashsize 1024
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ipset create not_filtered hash:ip hashsize 1024
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ipset create havp hash:ip hashsize 1024
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ipset create havp hash:ip hashsize 1024
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ipset create havp_bl hash:ip hashsize 1024
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ipset create havp_bl hash:ip hashsize 1024
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ipset create havp_wl hash:ip hashsize 1024
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ipset create havp_wl hash:ip hashsize 1024
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#pour les filtrages de protocole par utilisateur
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#pour les filtrages de protocole par utilisateur
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ipset create proto_0 hash:ip hashsize 1024
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ipset create proto_0 hash:ip hashsize 1024
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ipset create proto_1 hash:ip hashsize 1024
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ipset create proto_1 hash:ip hashsize 1024
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ipset create proto_2 hash:ip hashsize 1024
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ipset create proto_2 hash:ip hashsize 1024
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ipset create proto_3 hash:ip hashsize 1024
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ipset create proto_3 hash:ip hashsize 1024
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fi
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fi
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#############################
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#############################
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# PREROUTING #
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# PREROUTING #
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#############################
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#############################
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# Marquage des paquets qui tentent d'accéder directement à un serveur sans authentification en mode proxy pour pouvoir les rejeter en INPUT
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# Marquage des paquets qui tentent d'accéder directement à un serveur sans authentification en mode proxy pour pouvoir les rejeter en INPUT
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# Mark packets that attempt to directly access a server without authentication with proxy client to reject them in INPUT rules
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# Mark packets that attempt to directly access a server without authentication with proxy client to reject them in INPUT rules
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#$IPTABLES -A PREROUTING -t mangle -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp -m tcp --dport 80 -m string --string 'GET http' --algo bm --from 50 --to 70 -j MARK --set-mark 10
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#$IPTABLES -A PREROUTING -t mangle -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp -m tcp --dport 80 -m string --string 'GET http' --algo bm --from 50 --to 70 -j MARK --set-mark 10
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# Marquage (et journalisation) des paquets qui tentent d'accéder directement au 8080 (E2Guardian) pour pouvoir les rejeter en INPUT
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# Marquage (et journalisation) des paquets qui tentent d'accéder directement au 8080 (E2Guardian) pour pouvoir les rejeter en INPUT
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# Mark (and log) the direct attempts to TCP port 8090 (e2guardian) in order to REJECT them in INPUT rules
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# Mark (and log) the direct attempts to TCP port 8090 (e2guardian) in order to REJECT them in INPUT rules
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$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8080 -j NFLOG --nflog-group 1 --nflog-prefix "RULE direct-proxy -- DENY "
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$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8080 -j NFLOG --nflog-group 1 --nflog-prefix "RULE direct-proxy -- DENY "
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$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8080 -j MARK --set-mark 1
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$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8080 -j MARK --set-mark 1
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# Marquage (et journalisation) des paquets qui tentent d'accéder directement au port 8090 (tinyproxy) pour pouvoir les rejeter en INPUT
|
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# Marquage (et journalisation) des paquets qui tentent d'accéder directement au port 8090 (tinyproxy) pour pouvoir les rejeter en INPUT
|
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# Mark (and log) the direct attempts to TCP port 8090 (tinyproxy) in order to REJECT them in INPUT rules
|
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# Mark (and log) the direct attempts to TCP port 8090 (tinyproxy) in order to REJECT them in INPUT rules
|
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$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8090 -j NFLOG --nflog-group 1 --nflog-prefix "RULE direct-proxy -- DENY "
|
169 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8090 -j NFLOG --nflog-group 1 --nflog-prefix "RULE direct-proxy -- DENY "
|
170 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8090 -j MARK --set-mark 2
|
170 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8090 -j MARK --set-mark 2
|
171 |
|
171 |
|
172 |
# Marquage des paquets qui tentent d'accéder directement au port 54 (DNS-blacklist) pour pouvoir les rejeter en INPUT
|
172 |
# Marquage des paquets qui tentent d'accéder directement au port 54 (DNS-blacklist) pour pouvoir les rejeter en INPUT
|
173 |
# Mark the direct attempts to port 54 (DNS-blacklist) in order to REJECT them in INPUT rules
|
173 |
# Mark the direct attempts to port 54 (DNS-blacklist) in order to REJECT them in INPUT rules
|
174 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 54 -j MARK --set-mark 3
|
174 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 54 -j MARK --set-mark 3
|
175 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 54 -j MARK --set-mark 3
|
175 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 54 -j MARK --set-mark 3
|
176 |
|
176 |
|
177 |
# Marquage des paquets qui tentent d'accéder directement au port 55 (DNS-Whitelist) pour pouvoir les rejeter en INPUT
|
177 |
# Marquage des paquets qui tentent d'accéder directement au port 55 (DNS-Whitelist) pour pouvoir les rejeter en INPUT
|
178 |
# Mark the direct attempts to port 55 (DNS-whitelist) in order to REJECT them in INPUT rules
|
178 |
# Mark the direct attempts to port 55 (DNS-whitelist) in order to REJECT them in INPUT rules
|
179 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 55 -j MARK --set-mark 4
|
179 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 55 -j MARK --set-mark 4
|
180 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 55 -j MARK --set-mark 4
|
180 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 55 -j MARK --set-mark 4
|
181 |
|
181 |
|
182 |
# Marquage des paquets qui tentent d'accéder directement au port 56 (DNS-Blackhole) pour pouvoir les rejeter en INPUT
|
182 |
# Marquage des paquets qui tentent d'accéder directement au port 56 (DNS-Blackhole) pour pouvoir les rejeter en INPUT
|
183 |
# Mark the direct attempts to port 56 (DNS-blackhole) in order to REJECT them in INPUT rules
|
183 |
# Mark the direct attempts to port 56 (DNS-blackhole) in order to REJECT them in INPUT rules
|
184 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 56 -j MARK --set-mark 5
|
184 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 56 -j MARK --set-mark 5
|
185 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 56 -j MARK --set-mark 5
|
185 |
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 56 -j MARK --set-mark 5
|
186 |
|
186 |
|
187 |
# redirection DNS des usagers 'havp_bl' vers le port local 54 (en évitant le contournement)
|
187 |
# redirection DNS des usagers 'havp_bl' vers le port local 54 (en évitant le contournement)
|
188 |
# redirect DNS of 'havp_bl' users to the local port 54 (avoiding bypass)
|
188 |
# redirect DNS of 'havp_bl' users to the local port 54 (avoiding bypass)
|
189 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -p udp --dport domain -j REDIRECT --to-port 54
|
189 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -p udp --dport domain -j REDIRECT --to-port 54
|
190 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -p tcp --dport domain -j REDIRECT --to-port 54
|
190 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -p tcp --dport domain -j REDIRECT --to-port 54
|
191 |
|
191 |
|
192 |
# redirection DNS des usagers 'havp_wl' vers le port local 55 (en évitant le contournement)
|
192 |
# redirection DNS des usagers 'havp_wl' vers le port local 55 (en évitant le contournement)
|
193 |
# redirect DNS of 'havp_wl' users to the local port 55 (avoiding bypass)
|
193 |
# redirect DNS of 'havp_wl' users to the local port 55 (avoiding bypass)
|
194 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -p udp --dport domain -j REDIRECT --to-port 55
|
194 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -p udp --dport domain -j REDIRECT --to-port 55
|
195 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -p tcp --dport domain -j REDIRECT --to-port 55
|
195 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -p tcp --dport domain -j REDIRECT --to-port 55
|
196 |
|
196 |
|
197 |
# redirection des requêtes DNS de contournement vers le port local 53
|
197 |
# redirection des requêtes DNS de contournement vers le port local 53
|
198 |
# redirect of bypass DNS requests to the local port 53
|
198 |
# redirect of bypass DNS requests to the local port 53
|
199 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF ! -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 53
|
199 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF ! -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 53
|
200 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF ! -d $PRIVATE_IP -p tcp --dport domain -j REDIRECT --to-port 53
|
200 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF ! -d $PRIVATE_IP -p tcp --dport domain -j REDIRECT --to-port 53
|
201 |
|
201 |
|
202 |
# Journalisation HTTP_Internet des usagers 'havp_bl' (paquets SYN uniquement). Les autres protocoles sont journalisés en FORWARD par netflow.
|
202 |
# Journalisation HTTP_Internet des usagers 'havp_bl' (paquets SYN uniquement). Les autres protocoles sont journalisés en FORWARD par netflow.
|
203 |
# Log Internet HTTP of 'havp_bl' users" (only syn packets). Other protocols are logged in FORWARD by netflow
|
203 |
# Log Internet HTTP of 'havp_bl' users" (only syn packets). Other protocols are logged in FORWARD by netflow
|
204 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src ! -d $PRIVATE_IP -p tcp --dport http -m conntrack --ctstate NEW -j NFLOG --nflog-group 1 --nflog-prefix "RULE F_http -- ACCEPT "
|
204 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src ! -d $PRIVATE_IP -p tcp --dport http -m conntrack --ctstate NEW -j NFLOG --nflog-group 1 --nflog-prefix "RULE F_http -- ACCEPT "
|
205 |
|
205 |
|
206 |
# Redirection HTTP des usagers 'havp_bl' cherchant à joindre les IP de la blacklist vers ALCASAR (page 'accès interdit')
|
206 |
# Redirection HTTP des usagers 'havp_bl' cherchant à joindre les IP de la blacklist vers ALCASAR (page 'accès interdit')
|
207 |
# Redirect HTTP of 'havp_bl' users who want blacklist IP to ALCASAR ('access denied' page)
|
207 |
# Redirect HTTP of 'havp_bl' users who want blacklist IP to ALCASAR ('access denied' page)
|
208 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p tcp --dport http -j REDIRECT --to-port 80
|
208 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p tcp --dport http -j REDIRECT --to-port 80
|
209 |
|
209 |
|
210 |
# Redirection HTTP des usagers 'havp_wl' cherchant à joindre les IP qui ne sont pas dans la WL vers ALCASAR (page 'accès interdit')
|
210 |
# Redirection HTTP des usagers 'havp_wl' cherchant à joindre les IP qui ne sont pas dans la WL vers ALCASAR (page 'accès interdit')
|
211 |
# Redirect HTTP of 'havp_wl' users who want IP not in the WL to ALCASAR ('access denied' page)
|
211 |
# Redirect HTTP of 'havp_wl' users who want IP not in the WL to ALCASAR ('access denied' page)
|
212 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -m set ! --match-set wl_ip_allowed dst -p tcp --dport http -j REDIRECT --to-port 80
|
212 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -m set ! --match-set wl_ip_allowed dst -p tcp --dport http -j REDIRECT --to-port 80
|
213 |
|
213 |
|
214 |
# Redirection des requêtes HTTP sortantes des usagers 'havp_bl' vers E2Guardian
|
214 |
# Redirection des requêtes HTTP sortantes des usagers 'havp_bl' vers E2Guardian
|
215 |
# Redirect outbound HTTP requests of "BL" users to E2Guardian (transparent proxy)
|
215 |
# Redirect outbound HTTP requests of "BL" users to E2Guardian (transparent proxy)
|
216 |
# $IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8080
|
216 |
# $IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8080
|
217 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -m set ! --match-set site_direct dst ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8080
|
217 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -m set ! --match-set site_direct dst ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8080
|
218 |
# Redirection des requêtes HTTP sortantes des usager 'havp_wl' et 'havp' vers Tinyproxy
|
218 |
# Redirection des requêtes HTTP sortantes des usager 'havp_wl' et 'havp' vers Tinyproxy
|
219 |
# Redirect outbound HTTP requests for "WL-antivirus" users to Tinyproxy
|
219 |
# Redirect outbound HTTP requests for "WL-antivirus" users to Tinyproxy
|
220 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8090
|
220 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8090
|
221 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp src ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8090
|
221 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp src ! -d $PRIVATE_IP -p tcp --dport http -j REDIRECT --to-port 8090
|
222 |
|
222 |
|
223 |
# Redirection des requêtes NTP vers le serveur NTP local
|
223 |
# Redirection des requêtes NTP vers le serveur NTP local
|
224 |
# Redirect NTP request in local NTP server
|
224 |
# Redirect NTP request in local NTP server
|
225 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -s $PRIVATE_NETWORK_MASK ! -d $PRIVATE_IP -p udp --dport ntp -j REDIRECT --to-port 123
|
225 |
$IPTABLES -A PREROUTING -t nat -i $TUNIF -s $PRIVATE_NETWORK_MASK ! -d $PRIVATE_IP -p udp --dport ntp -j REDIRECT --to-port 123
|
226 |
|
226 |
|
227 |
#############################
|
227 |
#############################
|
228 |
# INPUT #
|
228 |
# INPUT #
|
229 |
#############################
|
229 |
#############################
|
230 |
|
230 |
|
231 |
# Tout passe sur loopback
|
231 |
# Tout passe sur loopback
|
232 |
# accept all on loopback
|
232 |
# accept all on loopback
|
233 |
$IPTABLES -A INPUT -i lo -j ACCEPT
|
233 |
$IPTABLES -A INPUT -i lo -j ACCEPT
|
234 |
$IPTABLES -A OUTPUT -o lo -j ACCEPT
|
234 |
$IPTABLES -A OUTPUT -o lo -j ACCEPT
|
235 |
|
235 |
|
236 |
# Rejet des demandes de connexions non conformes (FIN-URG-PUSH, XMAS, NullScan, SYN-RST et NEW not SYN)
|
236 |
# Rejet des demandes de connexions non conformes (FIN-URG-PUSH, XMAS, NullScan, SYN-RST et NEW not SYN)
|
237 |
# Drop non standard connexions (FIN-URG-PUSH, XMAS, NullScan, SYN-RST et NEW not SYN)
|
237 |
# Drop non standard connexions (FIN-URG-PUSH, XMAS, NullScan, SYN-RST et NEW not SYN)
|
238 |
$IPTABLES -A INPUT -p tcp --tcp-flags FIN,URG,PSH FIN,URG,PSH -j DROP
|
238 |
$IPTABLES -A INPUT -p tcp --tcp-flags FIN,URG,PSH FIN,URG,PSH -j DROP
|
239 |
$IPTABLES -A INPUT -p tcp --tcp-flags ALL ALL -j DROP
|
239 |
$IPTABLES -A INPUT -p tcp --tcp-flags ALL ALL -j DROP
|
240 |
$IPTABLES -A INPUT -p tcp --tcp-flags ALL NONE -j DROP
|
240 |
$IPTABLES -A INPUT -p tcp --tcp-flags ALL NONE -j DROP
|
241 |
$IPTABLES -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -j DROP
|
241 |
$IPTABLES -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -j DROP
|
242 |
$IPTABLES -A INPUT -p tcp -m tcp ! --syn -m conntrack --ctstate NEW -j DROP
|
242 |
$IPTABLES -A INPUT -p tcp -m tcp ! --syn -m conntrack --ctstate NEW -j DROP
|
243 |
|
243 |
|
244 |
# Si configéré, on autorise les réponses DHCP
|
244 |
# Si configéré, on autorise les réponses DHCP
|
245 |
# Allow DHCP answers if configured
|
245 |
# Allow DHCP answers if configured
|
246 |
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2` # ALCASAR WAN IP address
|
246 |
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2` # ALCASAR WAN IP address
|
247 |
if [[ "$public_ip_mask" == "dhcp" ]]
|
247 |
if [[ "$public_ip_mask" == "dhcp" ]]
|
248 |
then
|
248 |
then
|
249 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 68 -j ACCEPT
|
249 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 68 -j ACCEPT
|
250 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 68 -j ACCEPT
|
250 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 68 -j ACCEPT
|
251 |
fi
|
251 |
fi
|
252 |
# On rejette les trame en broadcast et en multicast sur EXTIF (évite leur journalisation)
|
252 |
# On rejette les trame en broadcast et en multicast sur EXTIF (évite leur journalisation)
|
253 |
# Drop broadcast & multicast on EXTIF to avoid log
|
253 |
# Drop broadcast & multicast on EXTIF to avoid log
|
254 |
$IPTABLES -A INPUT -m addrtype --dst-type BROADCAST,MULTICAST -j DROP
|
254 |
$IPTABLES -A INPUT -m addrtype --dst-type BROADCAST,MULTICAST -j DROP
|
255 |
|
255 |
|
256 |
# On autorise les retours de connexions légitimes par INPUT
|
256 |
# On autorise les retours de connexions légitimes par INPUT
|
257 |
# Conntrack on INPUT
|
257 |
# Conntrack on INPUT
|
258 |
$IPTABLES -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
258 |
$IPTABLES -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
|
259 |
|
259 |
|
260 |
# On interdit les connexions directes au port utilisé par E2Guardian (8080). Les packets concernés ont été marqués et loggués dans la table mangle (PREROUTING)
|
260 |
# On interdit les connexions directes au port utilisé par E2Guardian (8080). Les packets concernés ont été marqués et loggués dans la table mangle (PREROUTING)
|
261 |
# Deny direct connections on E2Guardian port (8080). The concerned paquets have been marked and logged in mangle table (PREROUTING)
|
261 |
# Deny direct connections on E2Guardian port (8080). The concerned paquets have been marked and logged in mangle table (PREROUTING)
|
262 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 8080 -m mark --mark 1 -j REJECT --reject-with tcp-reset
|
262 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 8080 -m mark --mark 1 -j REJECT --reject-with tcp-reset
|
263 |
|
263 |
|
264 |
# Autorisation des connexions légitimes à E2Guardian
|
264 |
# Autorisation des connexions légitimes à E2Guardian
|
265 |
# Allow connections for E2Guardian
|
265 |
# Allow connections for E2Guardian
|
266 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8080 -m conntrack --ctstate NEW --syn -j ACCEPT
|
266 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8080 -m conntrack --ctstate NEW --syn -j ACCEPT
|
267 |
|
267 |
|
268 |
# On interdit les connexions directes au port utilisé par tinyproxy (8090). Les packets concernés ont été marqués et loggués dans la table mangle (PREROUTING)
|
268 |
# On interdit les connexions directes au port utilisé par tinyproxy (8090). Les packets concernés ont été marqués et loggués dans la table mangle (PREROUTING)
|
269 |
# Deny direct connections on tinyproxy port (8090). The concerned paquets have been marked in mangle table (PREROUTING)
|
269 |
# Deny direct connections on tinyproxy port (8090). The concerned paquets have been marked in mangle table (PREROUTING)
|
270 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 8090 -m mark --mark 2 -j REJECT --reject-with tcp-reset
|
270 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 8090 -m mark --mark 2 -j REJECT --reject-with tcp-reset
|
271 |
|
271 |
|
272 |
# Autorisation des connexions légitimes vers tinyproxy
|
272 |
# Autorisation des connexions légitimes vers tinyproxy
|
273 |
# Allow connections to tinyproxy
|
273 |
# Allow connections to tinyproxy
|
274 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8090 -m conntrack --ctstate NEW --syn -j ACCEPT
|
274 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8090 -m conntrack --ctstate NEW --syn -j ACCEPT
|
275 |
|
275 |
|
276 |
# On interdit les connexions directes au port 54 (DNS-blacklist). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
|
276 |
# On interdit les connexions directes au port 54 (DNS-blacklist). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
|
277 |
# Deny direct connections on port 54 (DNS-blacklist). The concerned paquets are marked in mangle table (PREROUTING)
|
277 |
# Deny direct connections on port 54 (DNS-blacklist). The concerned paquets are marked in mangle table (PREROUTING)
|
278 |
$IPTABLES -A INPUT -i $TUNIF -p udp --dport 54 -m mark --mark 3 -j REJECT --reject-with icmp-port-unreachable
|
278 |
$IPTABLES -A INPUT -i $TUNIF -p udp --dport 54 -m mark --mark 3 -j REJECT --reject-with icmp-port-unreachable
|
279 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 54 -m mark --mark 3 -j REJECT --reject-with tcp-reset
|
279 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 54 -m mark --mark 3 -j REJECT --reject-with tcp-reset
|
280 |
|
280 |
|
281 |
# On interdit les connexions directes au port 55 (DNS-whitelist). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
|
281 |
# On interdit les connexions directes au port 55 (DNS-whitelist). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
|
282 |
# Deny direct connections on port 55 (DNS-whitelist). The concerned paquets are marked in mangle table (PREROUTING)
|
282 |
# Deny direct connections on port 55 (DNS-whitelist). The concerned paquets are marked in mangle table (PREROUTING)
|
283 |
$IPTABLES -A INPUT -i $TUNIF -p udp --dport 55 -m mark --mark 4 -j REJECT --reject-with icmp-port-unreachable
|
283 |
$IPTABLES -A INPUT -i $TUNIF -p udp --dport 55 -m mark --mark 4 -j REJECT --reject-with icmp-port-unreachable
|
284 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 55 -m mark --mark 3 -j REJECT --reject-with tcp-reset
|
284 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 55 -m mark --mark 3 -j REJECT --reject-with tcp-reset
|
285 |
|
285 |
|
286 |
# On interdit les connexions directes au port 56 (DNS-Blackhole). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
|
286 |
# On interdit les connexions directes au port 56 (DNS-Blackhole). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
|
287 |
# Deny direct connections on port 56 (DNS-blackhole). The concerned paquets are marked in mangle table (PREROUTING)
|
287 |
# Deny direct connections on port 56 (DNS-blackhole). The concerned paquets are marked in mangle table (PREROUTING)
|
288 |
$IPTABLES -A INPUT -i $TUNIF -p udp --dport 56 -m mark --mark 5 -j REJECT --reject-with icmp-port-unreachable
|
288 |
$IPTABLES -A INPUT -i $TUNIF -p udp --dport 56 -m mark --mark 5 -j REJECT --reject-with icmp-port-unreachable
|
289 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 56 -m mark --mark 3 -j REJECT --reject-with tcp-reset
|
289 |
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 56 -m mark --mark 3 -j REJECT --reject-with tcp-reset
|
290 |
|
290 |
|
291 |
# autorisation des connexion légitime à DNSMASQ (avec blacklist)
|
291 |
# autorisation des connexion légitime à DNSMASQ (avec blacklist)
|
292 |
# Allow connections for DNSMASQ (with blacklist)
|
292 |
# Allow connections for DNSMASQ (with blacklist)
|
293 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport 54 -j ACCEPT
|
293 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport 54 -j ACCEPT
|
294 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 54 -j ACCEPT
|
294 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 54 -j ACCEPT
|
295 |
|
295 |
|
296 |
# autorisation des connexion légitime à DNSMASQ (avec whitelist)
|
296 |
# autorisation des connexion légitime à DNSMASQ (avec whitelist)
|
297 |
# Allow connections for DNSMASQ (with whitelist)
|
297 |
# Allow connections for DNSMASQ (with whitelist)
|
298 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport 55 -j ACCEPT
|
298 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport 55 -j ACCEPT
|
299 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 55 -j ACCEPT
|
299 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 55 -j ACCEPT
|
300 |
|
300 |
|
301 |
# autorisation des connexion légitime à DNSMASQ (mode blackhole)
|
301 |
# autorisation des connexion légitime à DNSMASQ (mode blackhole)
|
302 |
# Allow connections for DNSMASQ (blackhole mode)
|
302 |
# Allow connections for DNSMASQ (blackhole mode)
|
303 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport 56 -j ACCEPT
|
303 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport 56 -j ACCEPT
|
304 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 56 -j ACCEPT
|
304 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 56 -j ACCEPT
|
305 |
|
305 |
|
306 |
# Accès direct aux services internes
|
306 |
# Accès direct aux services internes
|
307 |
# Internal services access
|
307 |
# Internal services access
|
308 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport domain -j ACCEPT # DNS
|
308 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport domain -j ACCEPT # DNS
|
309 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport domain -j ACCEPT # DNS
|
309 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport domain -j ACCEPT # DNS
|
310 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p icmp --icmp-type 8 -j ACCEPT # Réponse ping # ping responce
|
310 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p icmp --icmp-type 8 -j ACCEPT # Réponse ping # ping responce
|
311 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p icmp --icmp-type 0 -j ACCEPT # Requête ping # ping request
|
311 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p icmp --icmp-type 0 -j ACCEPT # Requête ping # ping request
|
312 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport https -j ACCEPT # Pages d'authentification et MCC # authentication pages and MCC
|
312 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport https -j ACCEPT # Pages d'authentification et MCC # authentication pages and MCC
|
313 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport http -j ACCEPT # Page d'avertissement filtrage # Filtering warning pages
|
313 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport http -j ACCEPT # Page d'avertissement filtrage # Filtering warning pages
|
314 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 3990:3991 -j ACCEPT # Requêtes de deconnexion usagers # Users logout requests
|
314 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 3990:3991 -j ACCEPT # Requêtes de deconnexion usagers # Users logout requests
|
315 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport ntp -j ACCEPT # Serveur local de temps # local time server
|
315 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport ntp -j ACCEPT # Serveur local de temps # local time server
|
316 |
|
316 |
|
317 |
# SSHD rules if activate
|
317 |
# SSHD rules if activate
|
318 |
if [ $SSH = on ]
|
318 |
if [ $SSH = on ]
|
319 |
then
|
319 |
then
|
320 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport ssh -m conntrack --ctstate NEW -j NFLOG --nflog-group 2 --nflog-prefix "RULE ssh-from-LAN -- ACCEPT"
|
320 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport ssh -m conntrack --ctstate NEW -j NFLOG --nflog-group 2 --nflog-prefix "RULE ssh-from-LAN -- ACCEPT"
|
321 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport ssh -j ACCEPT
|
321 |
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport ssh -j ACCEPT
|
322 |
$IPTABLES -A INPUT -i $EXTIF -s $SSH_ADMIN_FROM -d $PUBLIC_IP -p tcp --dport ssh -m conntrack --ctstate NEW --syn -j NFLOG --nflog-group 2 --nflog-prefix "RULE ssh-from-WAN -- ACCEPT"
|
322 |
$IPTABLES -A INPUT -i $EXTIF -s $SSH_ADMIN_FROM -d $PUBLIC_IP -p tcp --dport ssh -m conntrack --ctstate NEW --syn -j NFLOG --nflog-group 2 --nflog-prefix "RULE ssh-from-WAN -- ACCEPT"
|
323 |
$IPTABLES -A INPUT -i $EXTIF -s $SSH_ADMIN_FROM -d $PUBLIC_IP -p tcp --dport ssh -m conntrack --ctstate NEW -j ACCEPT
|
323 |
$IPTABLES -A INPUT -i $EXTIF -s $SSH_ADMIN_FROM -d $PUBLIC_IP -p tcp --dport ssh -m conntrack --ctstate NEW -j ACCEPT
|
324 |
fi
|
324 |
fi
|
325 |
|
325 |
|
326 |
# Insertion de règles locales
|
326 |
# Insertion de règles locales
|
327 |
# Here, we add local rules (i.e. VPN from Internet)
|
327 |
# Here, we add local rules (i.e. VPN from Internet)
|
328 |
if [ -f /usr/local/etc/alcasar-iptables-local.sh ]; then
|
328 |
if [ -f /usr/local/etc/alcasar-iptables-local.sh ]; then
|
329 |
. /usr/local/etc/alcasar-iptables-local.sh
|
329 |
. /usr/local/etc/alcasar-iptables-local.sh
|
330 |
fi
|
330 |
fi
|
331 |
|
331 |
|
332 |
# Journalisation et rejet des connexions (autres que celles autorisées) effectuées depuis le LAN
|
332 |
# Journalisation et rejet des connexions (autres que celles autorisées) effectuées depuis le LAN
|
333 |
# Deny and log on INPUT from the LAN
|
333 |
# Deny and log on INPUT from the LAN
|
334 |
$IPTABLES -A INPUT -i $TUNIF -m conntrack --ctstate NEW -j NFLOG --nflog-group 1 --nflog-prefix "RULE rej-int -- REJECT "
|
334 |
$IPTABLES -A INPUT -i $TUNIF -m conntrack --ctstate NEW -j NFLOG --nflog-group 1 --nflog-prefix "RULE rej-int -- REJECT "
|
335 |
$IPTABLES -A INPUT -i $TUNIF -p tcp -j REJECT --reject-with tcp-reset
|
335 |
$IPTABLES -A INPUT -i $TUNIF -p tcp -j REJECT --reject-with tcp-reset
|
336 |
$IPTABLES -A INPUT -i $TUNIF -p udp -j REJECT --reject-with icmp-port-unreachable
|
336 |
$IPTABLES -A INPUT -i $TUNIF -p udp -j REJECT --reject-with icmp-port-unreachable
|
337 |
|
337 |
|
338 |
# Interdiction d'accès à INTIF (n'est utile que lorsque chilli est arrêté).
|
338 |
# Interdiction d'accès à INTIF (n'est utile que lorsque chilli est arrêté).
|
339 |
# Reject INTIF access (only when chilli is down)
|
339 |
# Reject INTIF access (only when chilli is down)
|
340 |
$IPTABLES -A INPUT -i $INTIF -j NFLOG --nflog-group 1 --nflog-prefix "RULE Protect1 -- REJECT "
|
340 |
$IPTABLES -A INPUT -i $INTIF -j NFLOG --nflog-group 1 --nflog-prefix "RULE Protect1 -- REJECT "
|
341 |
$IPTABLES -A INPUT -i $INTIF -j REJECT
|
341 |
$IPTABLES -A INPUT -i $INTIF -j REJECT
|
342 |
|
342 |
|
343 |
# Journalisation et rejet des connexions initiées depuis le réseau extérieur (test des effets du paramètre --limit en cours)
|
343 |
# Journalisation et rejet des connexions initiées depuis le réseau extérieur (test des effets du paramètre --limit en cours)
|
344 |
# On EXTIF, the access attempts are log in channel 2 (we should test --limit option to avoid deny of service)
|
344 |
# On EXTIF, the access attempts are log in channel 2 (we should test --limit option to avoid deny of service)
|
345 |
$IPTABLES -A INPUT -i $EXTIF -m conntrack --ctstate NEW -j NFLOG --nflog-group 3 --nflog-threshold 10 --nflog-prefix "RULE rej-ext -- DROP"
|
345 |
$IPTABLES -A INPUT -i $EXTIF -m conntrack --ctstate NEW -j NFLOG --nflog-group 3 --nflog-threshold 10 --nflog-prefix "RULE rej-ext -- DROP"
|
346 |
|
346 |
|
347 |
#############################
|
347 |
#############################
|
348 |
# FORWARD #
|
348 |
# FORWARD #
|
349 |
#############################
|
349 |
#############################
|
350 |
|
350 |
|
351 |
# Blocage des IPs du SET bl_ip_blocked pour le SET havp_bl
|
351 |
# Blocage des IPs du SET bl_ip_blocked pour le SET havp_bl
|
352 |
# Deny IPs of the SET bl_ip_blocked for the set havp_bl
|
352 |
# Deny IPs of the SET bl_ip_blocked for the set havp_bl
|
353 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p icmp -j REJECT --reject-with icmp-host-prohibited
|
353 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p icmp -j REJECT --reject-with icmp-host-prohibited
|
354 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p udp -j REJECT --reject-with icmp-host-prohibited
|
354 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p udp -j REJECT --reject-with icmp-host-prohibited
|
355 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p tcp -j REJECT --reject-with tcp-reset
|
355 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set havp_bl src -m set --match-set bl_ip_blocked dst -p tcp -j REJECT --reject-with tcp-reset
|
356 |
|
356 |
|
357 |
# Active le suivi de session
|
357 |
# Active le suivi de session
|
358 |
# Allow Conntrack
|
358 |
# Allow Conntrack
|
359 |
$IPTABLES -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
|
359 |
$IPTABLES -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
|
360 |
|
360 |
|
361 |
# Compute uamallowed IP (IP address of equipments connected between ALCASAR and Internet (DMZ, own servers, ...)
|
361 |
# Compute uamallowed IP (IP address of equipments connected between ALCASAR and Internet (DMZ, own servers, ...)
|
362 |
nb_uamallowed=`wc -l /usr/local/etc/alcasar-uamallowed | cut -d" " -f1`
|
362 |
nb_uamallowed=`wc -l /usr/local/etc/alcasar-uamallowed | cut -d" " -f1`
|
363 |
if [ $nb_uamallowed != "0" ]
|
363 |
if [ $nb_uamallowed != "0" ]
|
364 |
then
|
364 |
then
|
365 |
while read ip_allowed_line
|
365 |
while read ip_allowed_line
|
366 |
do
|
366 |
do
|
367 |
ip_allowed=`echo $ip_allowed_line|cut -d"\"" -f2`
|
367 |
ip_allowed=`echo $ip_allowed_line|cut -d"\"" -f2`
|
368 |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m conntrack --ctstate NEW -j NETFLOW
|
368 |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m conntrack --ctstate NEW -j NETFLOW
|
369 |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m conntrack --ctstate NEW -j ACCEPT
|
369 |
$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m conntrack --ctstate NEW -j ACCEPT
|
370 |
done < /usr/local/etc/alcasar-uamallowed
|
370 |
done < /usr/local/etc/alcasar-uamallowed
|
371 |
fi
|
371 |
fi
|
372 |
|
372 |
|
373 |
# filtrage protocole par utilisateur (profile 1 : http, https)
|
373 |
# filtrage protocole par utilisateur (profile 1 : http, https)
|
374 |
# protocols filtering for users (profil 1 : http, https)
|
374 |
# protocols filtering for users (profil 1 : http, https)
|
375 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp -m multiport ! --dports http,https -m conntrack --ctstate NEW -j REJECT --reject-with tcp-reset
|
375 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp -m multiport ! --dports http,https -m conntrack --ctstate NEW -j REJECT --reject-with tcp-reset
|
376 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp -m multiport ! --dports http,https -m conntrack --ctstate NEW -j REJECT --reject-with icmp-port-unreachable
|
376 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp -m multiport ! --dports http,https -m conntrack --ctstate NEW -j REJECT --reject-with icmp-port-unreachable
|
377 |
|
377 |
|
378 |
# filtrage protocole par utilisateur (profile 2 : http https pop3 pop3s imap imaps ftp sftp ssh)
|
378 |
# filtrage protocole par utilisateur (profile 2 : http https pop3 pop3s imap imaps ftp sftp ssh)
|
379 |
# protocols filtering for users (profil 2 : http https pop3 pop3s imap imaps ftp sftp ssh)
|
379 |
# protocols filtering for users (profil 2 : http https pop3 pop3s imap imaps ftp sftp ssh)
|
380 |
|
380 |
|
381 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp -m multiport ! --dports http,https,pop3,pop3s,imap,imaps,ftp,ftp-data,sftp,ssh -m conntrack --ctstate NEW -j REJECT --reject-with tcp-reset
|
381 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp -m multiport ! --dports http,https,pop3,pop3s,imap,imaps,ftp,ftp-data,sftp,ssh -m conntrack --ctstate NEW -j REJECT --reject-with tcp-reset
|
382 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp -m multiport ! --dports http,https,pop3,pop3s,imap,imaps,ssh -m conntrack --ctstate NEW -j REJECT --reject-with icmp-port-unreachable
|
382 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp -m multiport ! --dports http,https,pop3,pop3s,imap,imaps,ssh -m conntrack --ctstate NEW -j REJECT --reject-with icmp-port-unreachable
|
383 |
|
383 |
|
384 |
# filtrage protocole par utilisateur (profile 3 : personnalisable via l'ACC)
|
384 |
# filtrage protocole par utilisateur (profile 3 : personnalisable via l'ACC)
|
385 |
# protocols filtering for users (profil 3 : customized with ACC)
|
385 |
# protocols filtering for users (profil 3 : customized with ACC)
|
386 |
#profile 3 personalisables via l'ACC
|
386 |
#profile 3 personalisables via l'ACC
|
387 |
custom_tcp_protocols_list='';custom_udp_protocols_list=''
|
387 |
custom_tcp_protocols_list='';custom_udp_protocols_list=''
|
388 |
while read svc_line
|
388 |
while read svc_line
|
389 |
do
|
389 |
do
|
390 |
svc_on=`echo $svc_line|cut -b1`
|
390 |
svc_on=`echo $svc_line|cut -b1`
|
391 |
if [ $svc_on != "#" ]
|
391 |
if [ $svc_on != "#" ]
|
392 |
then
|
392 |
then
|
393 |
svc_name=`echo $svc_line|cut -d" " -f1`
|
393 |
svc_name=`echo $svc_line|cut -d" " -f1`
|
394 |
svc_port=`echo $svc_line|cut -d" " -f2`
|
394 |
svc_port=`echo $svc_line|cut -d" " -f2`
|
395 |
if [ $svc_name = "icmp" ]
|
395 |
if [ $svc_name = "icmp" ]
|
396 |
then
|
396 |
then
|
397 |
svc_icmp="on"
|
397 |
svc_icmp="on"
|
398 |
else
|
398 |
else
|
399 |
if [ "$custom_tcp_protocols_list" == "" ]
|
399 |
if [ "$custom_tcp_protocols_list" == "" ]
|
400 |
then
|
400 |
then
|
401 |
custom_tcp_protocols_list=$svc_port
|
401 |
custom_tcp_protocols_list=$svc_port
|
402 |
else
|
402 |
else
|
403 |
custom_tcp_protocols_list=`echo $custom_tcp_protocols_list","$svc_port`
|
403 |
custom_tcp_protocols_list=`echo $custom_tcp_protocols_list","$svc_port`
|
404 |
fi
|
404 |
fi
|
405 |
udp_svc=`egrep "[[:space:]]$svc_port/udp" /etc/services|wc -l`
|
405 |
udp_svc=`egrep "[[:space:]]$svc_port/udp" /etc/services|wc -l`
|
406 |
if [ $udp_svc = "1" ] # udp service exist
|
406 |
if [ $udp_svc = "1" ] # udp service exist
|
407 |
then
|
407 |
then
|
408 |
if [ "$custom_udp_protocols_list" == "" ]
|
408 |
if [ "$custom_udp_protocols_list" == "" ]
|
409 |
then
|
409 |
then
|
410 |
custom_udp_protocols_list=$svc_port
|
410 |
custom_udp_protocols_list=$svc_port
|
411 |
else
|
411 |
else
|
412 |
custom_udp_protocols_list=`echo $custom_udp_protocols_list","$svc_port`
|
412 |
custom_udp_protocols_list=`echo $custom_udp_protocols_list","$svc_port`
|
413 |
fi
|
413 |
fi
|
414 |
fi
|
414 |
fi
|
415 |
fi
|
415 |
fi
|
416 |
fi
|
416 |
fi
|
417 |
done < /usr/local/etc/alcasar-services
|
417 |
done < /usr/local/etc/alcasar-services
|
418 |
if [ "$custom_tcp_protocols_list" == "" ]
|
418 |
if [ "$custom_tcp_protocols_list" == "" ]
|
419 |
then
|
419 |
then
|
420 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -j REJECT
|
420 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -j REJECT
|
421 |
else
|
421 |
else
|
422 |
if [ "$svc_icmp" != "on" ]
|
422 |
if [ "$svc_icmp" != "on" ]
|
423 |
then
|
423 |
then
|
424 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p icmp -j REJECT --reject-with icmp-proto-unreachable
|
424 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p icmp -j REJECT --reject-with icmp-proto-unreachable
|
425 |
fi
|
425 |
fi
|
426 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp -m multiport ! --dports $custom_tcp_protocols_list -m conntrack --ctstate NEW -j REJECT --reject-with tcp-reset
|
426 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp -m multiport ! --dports $custom_tcp_protocols_list -m conntrack --ctstate NEW -j REJECT --reject-with tcp-reset
|
427 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp -m multiport ! --dports $custom_udp_protocols_list -m conntrack --ctstate NEW -j REJECT --reject-with icmp-port-unreachable
|
427 |
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp -m multiport ! --dports $custom_udp_protocols_list -m conntrack --ctstate NEW -j REJECT --reject-with icmp-port-unreachable
|
428 |
fi
|
428 |
fi
|
429 |
|
429 |
|
430 |
# journalisation et autorisation des connections sortant du LAN
|
430 |
# journalisation et autorisation des connections sortant du LAN
|
431 |
# Allow forward connections with log
|
431 |
# Allow forward connections with log
|
432 |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m conntrack --ctstate NEW -j NETFLOW
|
432 |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m conntrack --ctstate NEW -j NETFLOW
|
433 |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m conntrack --ctstate NEW -j ACCEPT
|
433 |
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m conntrack --ctstate NEW -j ACCEPT
|
434 |
|
434 |
|
435 |
#############################
|
435 |
#############################
|
436 |
# OUTPUT #
|
436 |
# OUTPUT #
|
437 |
#############################
|
437 |
#############################
|
438 |
# On laisse tout sortir à l'exception de la carte externe (cf ci-dessous)
|
438 |
# On laisse tout sortir à l'exception de la carte externe (cf ci-dessous)
|
439 |
# Everything is allowed apart from outside network interface (see bellow)
|
439 |
# Everything is allowed apart from outside network interface (see bellow)
|
440 |
$IPTABLES -A OUTPUT ! -o $EXTIF -j ACCEPT
|
440 |
$IPTABLES -A OUTPUT ! -o $EXTIF -j ACCEPT
|
441 |
|
441 |
|
442 |
# Si configuré, on autorise les requêtes DHCP
|
442 |
# Si configuré, on autorise les requêtes DHCP
|
443 |
# Allow DHCP requests if configured
|
443 |
# Allow DHCP requests if configured
|
444 |
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2` # ALCASAR WAN IP address
|
444 |
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2` # ALCASAR WAN IP address
|
445 |
if [[ "$public_ip_mask" == "dhcp" ]]
|
445 |
if [[ "$public_ip_mask" == "dhcp" ]]
|
446 |
then
|
446 |
then
|
447 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 67 -j ACCEPT
|
447 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 67 -j ACCEPT
|
448 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 67 -j ACCEPT
|
448 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 67 -j ACCEPT
|
449 |
fi
|
449 |
fi
|
450 |
|
450 |
|
451 |
# On autorise les requêtes DNS vers les serveurs DNS identifiés
|
451 |
# On autorise les requêtes DNS vers les serveurs DNS identifiés
|
452 |
# Allow DNS requests to identified DNS servers
|
452 |
# Allow DNS requests to identified DNS servers
|
453 |
$IPTABLES -A OUTPUT -o $EXTIF -d $DNSSERVERS -p udp --dport domain -m conntrack --ctstate NEW -j ACCEPT
|
453 |
$IPTABLES -A OUTPUT -o $EXTIF -d $DNSSERVERS -p udp --dport domain -m conntrack --ctstate NEW -j ACCEPT
|
454 |
|
454 |
|
455 |
# On autorise les requêtes HTTP avec log Netflow (en provenance de E2guardian)
|
455 |
# On autorise les requêtes HTTP avec log Netflow (en provenance de E2guardian)
|
456 |
# HTTPS requests are allowed with netflow log (from E2guardian)
|
456 |
# HTTPS requests are allowed with netflow log (from E2guardian)
|
457 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j NETFLOW
|
457 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j NETFLOW
|
458 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j ACCEPT
|
458 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j ACCEPT
|
459 |
|
459 |
|
460 |
# On autorise les requêtes HTTPS sortantes
|
460 |
# On autorise les requêtes HTTPS sortantes
|
461 |
# HTTPS requests are allowed
|
461 |
# HTTPS requests are allowed
|
462 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport https -j ACCEPT
|
462 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport https -j ACCEPT
|
463 |
|
463 |
|
464 |
# On autorise les requêtes RSYNC sortantes (maj BL de Toulouse)
|
464 |
# On autorise les requêtes RSYNC sortantes (maj BL de Toulouse)
|
465 |
# RSYNC requests are allowed (update of Toulouse BL)
|
465 |
# RSYNC requests are allowed (update of Toulouse BL)
|
466 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport rsync -j ACCEPT
|
466 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport rsync -j ACCEPT
|
467 |
|
467 |
|
468 |
# On autorise les requêtes FTP
|
468 |
# On autorise les requêtes FTP
|
469 |
# FTP requests are allowed
|
469 |
# FTP requests are allowed
|
470 |
modprobe nf_conntrack_ftp
|
470 |
modprobe nf_conntrack_ftp
|
- |
|
471 |
$IPTABLES -t raw -A OUTPUT -p tcp --dport ftp -j CT --helper ftp
|
471 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport ftp -j ACCEPT
|
472 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport ftp -j ACCEPT
|
472 |
$IPTABLES -A OUTPUT -o $EXTIF -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
|
473 |
$IPTABLES -A OUTPUT -o $EXTIF -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
|
473 |
|
474 |
|
474 |
# On autorise les requêtes NTP
|
475 |
# On autorise les requêtes NTP
|
475 |
# NTP requests are allowed
|
476 |
# NTP requests are allowed
|
476 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport ntp -j ACCEPT
|
477 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport ntp -j ACCEPT
|
477 |
|
478 |
|
478 |
# On autorise les requêtes ICMP (ping)
|
479 |
# On autorise les requêtes ICMP (ping)
|
479 |
# ICMP (ping) requests are allowed
|
480 |
# ICMP (ping) requests are allowed
|
480 |
$IPTABLES -A OUTPUT -o $EXTIF -p icmp --icmp-type 8 -j ACCEPT
|
481 |
$IPTABLES -A OUTPUT -o $EXTIF -p icmp --icmp-type 8 -j ACCEPT
|
481 |
|
482 |
|
482 |
# On autorise les requêtes LDAP
|
483 |
# On autorise les requêtes LDAP
|
483 |
# LDAP requests are allowed
|
484 |
# LDAP requests are allowed
|
484 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp -m multiport --dports ldap,ldaps -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
|
485 |
$IPTABLES -A OUTPUT -o $EXTIF -p tcp -m multiport --dports ldap,ldaps -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
|
485 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp -m multiport --dports ldap,ldaps -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
|
486 |
$IPTABLES -A OUTPUT -o $EXTIF -p udp -m multiport --dports ldap,ldaps -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT
|
486 |
|
487 |
|
487 |
#############################
|
488 |
#############################
|
488 |
# POSTROUTING #
|
489 |
# POSTROUTING #
|
489 |
#############################
|
490 |
#############################
|
490 |
# Traduction dynamique d'adresse en sortie
|
491 |
# Traduction dynamique d'adresse en sortie
|
491 |
# Dynamic NAT on EXTIF
|
492 |
# Dynamic NAT on EXTIF
|
492 |
$IPTABLES -A POSTROUTING -t nat -o $EXTIF -j MASQUERADE
|
493 |
$IPTABLES -A POSTROUTING -t nat -o $EXTIF -j MASQUERADE
|
493 |
|
494 |
|
494 |
|
495 |
|
495 |
#############################
|
496 |
#############################
|
496 |
# FAIL2BAN #
|
497 |
# FAIL2BAN #
|
497 |
#############################
|
498 |
#############################
|
498 |
# Reload Fail2Ban
|
499 |
# Reload Fail2Ban
|
499 |
if systemctl -q is-active fail2ban; then
|
500 |
if systemctl -q is-active fail2ban; then
|
500 |
/usr/bin/fail2ban-client ping &>/dev/null && /usr/bin/fail2ban-client -q reload
|
501 |
/usr/bin/fail2ban-client ping &>/dev/null && /usr/bin/fail2ban-client -q reload
|
501 |
fi
|
502 |
fi
|
502 |
|
503 |
|