Subversion Repositories ALCASAR

Rev

Rev 1962 | Rev 2010 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log

Rev 1962 Rev 2006
1 
#!/bin/bash
 1 
#!/bin/bash
2 
# $Id: alcasar-iptables.sh 1962 2016-06-24 17:21:40Z richard $
 2 
# $Id: alcasar-iptables.sh 2006 2016-07-22 13:07:10Z raphael.pion $
3 
# Script de mise en place des regles du parefeu d'Alcasar (mode normal)
 3 
# Script de mise en place des regles du parefeu d'Alcasar (mode normal)
4 
# This script writes the netfilter rules for ALCASAR
 4 
# This script writes the netfilter rules for ALCASAR
5 
# Rexy - 3abtux - CPN
 5 
# Rexy - 3abtux - CPN
6 
#
 6 
#
7 
# Reminders
 7 
# Reminders
8 
# There are four channels for log :
 8 
# There are four channels for log :
9 
#	1 tracability of the consultation equipment with The 'Netflow' kernel module (iptables target = NETFLOW);
 9 
#	1 tracability of the consultation equipment with The 'Netflow' kernel module (iptables target = NETFLOW);
10 
#	2 protection of ALCASAR with the Ulog group 1 (default group)
10 
#	2 protection of ALCASAR with the Ulog group 1 (default group)
11 
#	3 SSH on ALCASAR with the Ulog group 2;
 11 
#	3 SSH on ALCASAR with the Ulog group 2;
12 
#	4 extern access attempts on ALCASAR with the Ulog group 3.
 12 
#	4 extern access attempts on ALCASAR with the Ulog group 3.
13 
# The bootps/dhcp (67) port is always open on tun0/INTIF by coova
13 
# The bootps/dhcp (67) port is always open on tun0/INTIF by coova
14 
CONF_FILE="/usr/local/etc/alcasar.conf"
 14 
CONF_FILE="/usr/local/etc/alcasar.conf"
15 
EXTIF=`grep ^EXTIF= $CONF_FILE|cut -d"=" -f2`				# EXTernal InterFace
 15 
EXTIF=`grep ^EXTIF= $CONF_FILE|cut -d"=" -f2`				# EXTernal InterFace
16 
INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`				# INTernal InterFace
 16 
INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`				# INTernal InterFace
17 
TUNIF="tun0"								# listen device for chilli daemon
 17 
TUNIF="tun0"								# listen device for chilli daemon
18 
private_ip_mask=`grep ^PRIVATE_IP= $CONF_FILE|cut -d"=" -f2`
 18 
private_ip_mask=`grep ^PRIVATE_IP= $CONF_FILE|cut -d"=" -f2`
19 
private_ip_mask=${private_ip_mask:=192.168.182.1/24}
 19 
private_ip_mask=${private_ip_mask:=192.168.182.1/24}
20 
PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1`			# ALCASAR LAN IP address
 20 
PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1`			# ALCASAR LAN IP address
21 
private_network=`/bin/ipcalc -n $private_ip_mask|cut -d"=" -f2`		# LAN IP address (ie.: 192.168.182.0)
 21 
private_network=`/bin/ipcalc -n $private_ip_mask|cut -d"=" -f2`		# LAN IP address (ie.: 192.168.182.0)
22 
private_prefix=`/bin/ipcalc -p $private_ip_mask|cut -d"=" -f2`		# LAN prefix (ie. 24)
 22 
private_prefix=`/bin/ipcalc -p $private_ip_mask|cut -d"=" -f2`		# LAN prefix (ie. 24)
23 
PRIVATE_NETWORK_MASK=$private_network/$private_prefix			# Lan IP address + prefix (192.168.182.0/24)
 23 
PRIVATE_NETWORK_MASK=$private_network/$private_prefix			# Lan IP address + prefix (192.168.182.0/24)
24 
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2`		# ALCASAR WAN IP address
 24 
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2`		# ALCASAR WAN IP address
25 
if [[ "$public_ip_mask" == "dhcp" ]]
 25 
if [[ "$public_ip_mask" == "dhcp" ]]
26 
then
 26 
then
27 
	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"
 27 
	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"
28 
	public_ip_mask=`ip addr show $EXTIF | egrep -o $PTN`
 28 
	public_ip_mask=`ip addr show $EXTIF | egrep -o $PTN`
29 
fi
 29 
fi
30 
PUBLIC_IP=`echo $public_ip_mask | cut -d"/" -f1`
 30 
PUBLIC_IP=`echo $public_ip_mask | cut -d"/" -f1`
31 
dns1=`grep ^DNS1= $CONF_FILE|cut -d"=" -f2`
 31 
dns1=`grep ^DNS1= $CONF_FILE|cut -d"=" -f2`
32 
dns2=`grep ^DNS2= $CONF_FILE|cut -d"=" -f2`
 32 
dns2=`grep ^DNS2= $CONF_FILE|cut -d"=" -f2`
33 
dns1=${dns1:=208.67.220.220}
 33 
dns1=${dns1:=208.67.220.220}
34 
dns2=${dns2:=208.67.222.222}
 34 
dns2=${dns2:=208.67.222.222}
35 
DNSSERVERS="$dns1,$dns2"						# first and second public DNS servers
 35 
DNSSERVERS="$dns1,$dns2"						# first and second public DNS servers
36 
PROTOCOLS_FILTERING=`grep ^PROTOCOLS_FILTERING= $CONF_FILE|cut -d"=" -f2`	# Network protocols filter (on/off)
 - 
 
37 
PROTOCOLS_FILTERING=${PROTOCOLS_FILTERING:=off}
 - 
 
38 
BL_IP_CAT="/usr/local/share/iptables-bl-enabled"			# categories files of the BlackListed IP
 36 
BL_IP_CAT="/usr/local/share/iptables-bl-enabled"			# categories files of the BlackListed IP
39 
WL_IP_CAT="/usr/local/share/iptables-wl-enabled"			# categories files of the WhiteListed IP
 37 
WL_IP_CAT="/usr/local/share/iptables-wl-enabled"			# categories files of the WhiteListed IP
40 
TMP_users_set_save="/tmp/users_set_save"				# tmp file for backup users set
38 
TMP_users_set_save="/tmp/users_set_save"				# tmp file for backup users set
41 
TMP_set_save="/tmp/ipset_save"						# tmp file for blacklist and whitelist creation
 39 
TMP_set_save="/tmp/ipset_save"						# tmp file for blacklist and whitelist creation
42 
SSH=`grep ^SSH= $CONF_FILE|cut -d"=" -f2`				# sshd active (on/off)
 40 
SSH=`grep ^SSH= $CONF_FILE|cut -d"=" -f2`				# sshd active (on/off)
43 
SSH=${SSH:=off}
 41 
SSH=${SSH:=off}
44 
SSH_ADMIN_FROM=`grep ^SSH_ADMIN_FROM= $CONF_FILE|cut -d"=" -f2`
 42 
SSH_ADMIN_FROM=`grep ^SSH_ADMIN_FROM= $CONF_FILE|cut -d"=" -f2`
45 
SSH_ADMIN_FROM=${SSH_ADMIN_FROM:="0.0.0.0/0.0.0.0"}			# WAN IP address to reduce ssh access (all ip allowed on LAN side)
 43 
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)
46 
LDAP=`grep ^LDAP= $CONF_FILE|cut -d"=" -f2`				# LDAP external server active (on/off)
 44 
LDAP=`grep ^LDAP= $CONF_FILE|cut -d"=" -f2`				# LDAP external server active (on/off)
47 
LDAP=${LDAP:=off}
 45 
LDAP=${LDAP:=off}
48 
LDAP_IP=`grep ^LDAP_IP= $CONF_FILE|cut -d"=" -f2`			# WAN IP address to reduce LDAP WAN access (all ip allowed on LAN side)
 46 
LDAP_IP=`grep ^LDAP_IP= $CONF_FILE|cut -d"=" -f2`			# WAN IP address to reduce LDAP WAN access (all ip allowed on LAN side)
49 
LDAP_IP=${LDAP_IP:="0.0.0.0/0.0.0.0"}
 47 
LDAP_IP=${LDAP_IP:="0.0.0.0/0.0.0.0"}
50 
IPTABLES="/sbin/iptables"
 48 
IPTABLES="/sbin/iptables"
51 
IP_REHABILITEES="/etc/dansguardian/lists/exceptioniplist"		# Rehabilitated IP
 49 
IP_REHABILITEES="/etc/dansguardian/lists/exceptioniplist"		# Rehabilitated IP
52 
SAVE_DIR="/etc/sysconfig"						# Saving path
 50 
SAVE_DIR="/etc/sysconfig"						# Saving path
53 
 
 51 
 
54 
# Sauvegarde des SET des utilisateurs connectés si ils existent
 52 
# Sauvegarde des SET des utilisateurs connectés si ils existent
55 
# Saving SET of connected users if it exists
 53 
# Saving SET of connected users if it exists
56 
ipset list not_filtered 1>/dev/null 2>&1
 54 
ipset list not_filtered 1>/dev/null 2>&1
57 
if [ $? -eq 0 ];
 55 
if [ $? -eq 0 ];
58 
then
 56 
then
59 
	ipset save not_filtered > $TMP_users_set_save
 57 
	ipset save not_filtered > $TMP_users_set_save
60 
	ipset save havp >> $TMP_users_set_save
 58 
	ipset save havp >> $TMP_users_set_save
61 
	ipset save havp_bl >> $TMP_users_set_save
 59 
	ipset save havp_bl >> $TMP_users_set_save
62 
	ipset save havp_wl >> $TMP_users_set_save
 60 
	ipset save havp_wl >> $TMP_users_set_save
63 
	ipset save not_auth_yet >> $TMP_users_set_save
 61 
	ipset save not_auth_yet >> $TMP_users_set_save
64 
	ipset save users_list >> $TMP_users_set_save
 62 
	ipset save users_list >> $TMP_users_set_save
- 
 
 63 
	ipset save proto_0 >> $TMP_users_set_save
- 
 
 64 
	ipset save proto_1 >> $TMP_users_set_save
- 
 
 65 
	ipset save proto_2 >> $TMP_users_set_save
- 
 
 66 
	ipset save proto_3 >> $TMP_users_set_save
65 
fi
 67 
fi
66 
 
 68 
 
67 
# loading of NetFlow probe (ipt_NETFLOW kernel module)
 69 
# loading of NetFlow probe (ipt_NETFLOW kernel module)
68 
modprobe ipt_NETFLOW destination=127.0.0.1:2055
 70 
modprobe ipt_NETFLOW destination=127.0.0.1:2055
69 
 
 71 
 
70 
# Effacement des règles existantes
 72 
# Effacement des règles existantes
71 
# Flush all existing rules
 73 
# Flush all existing rules
72 
$IPTABLES -F
 74 
$IPTABLES -F
73 
$IPTABLES -t nat -F
 75 
$IPTABLES -t nat -F
74 
$IPTABLES -t mangle -F
 76 
$IPTABLES -t mangle -F
75 
$IPTABLES -F INPUT
 77 
$IPTABLES -F INPUT
76 
$IPTABLES -F FORWARD
 78 
$IPTABLES -F FORWARD
77 
$IPTABLES -F OUTPUT
 79 
$IPTABLES -F OUTPUT
78 
 
 80 
 
79 
# Suppression des chaines utilisateurs sur les tables filter et nat
 81 
# Suppression des chaines utilisateurs sur les tables filter et nat
80 
# Flush non default rules on filter and nat tables
 82 
# Flush non default rules on filter and nat tables
81 
$IPTABLES -X
 83 
$IPTABLES -X
82 
$IPTABLES -t nat -X
 84 
$IPTABLES -t nat -X
83 
 
 85 
 
84 
# Stratégies par défaut
 86 
# Stratégies par défaut
85 
# Default policies
 87 
# Default policies
86 
$IPTABLES -P INPUT DROP
 88 
$IPTABLES -P INPUT DROP
87 
$IPTABLES -P FORWARD DROP
 89 
$IPTABLES -P FORWARD DROP
88 
$IPTABLES -P OUTPUT DROP
 90 
$IPTABLES -P OUTPUT DROP
89 
$IPTABLES -t nat -P PREROUTING ACCEPT
 91 
$IPTABLES -t nat -P PREROUTING ACCEPT
90 
$IPTABLES -t nat -P POSTROUTING ACCEPT
 92 
$IPTABLES -t nat -P POSTROUTING ACCEPT
91 
$IPTABLES -t nat -P OUTPUT ACCEPT
 93 
$IPTABLES -t nat -P OUTPUT ACCEPT
92 
 
 94 
 
93 
 
 95 
 
94 
#############################
 96 
#############################
95 
#          IPSET            #
 97 
#          IPSET            #
96 
#############################
 98 
#############################
97 
 
 99 
 
98 
# destruction de tous les SET
 100 
# destruction de tous les SET
99 
# destroy all SET
 101 
# destroy all SET
100 
ipset flush
 102 
ipset flush
101 
ipset destroy
 103 
ipset destroy
102 
 
 104 
 
103 
###### BL set  ###########
 105 
###### BL set  ###########
104 
# Calcul de la taille / Compute the length
 106 
# Calcul de la taille / Compute the length
105 
bl_set_length=$(wc -l $BL_IP_CAT/* | awk '{print $1}' | tail -n 1)
 107 
bl_set_length=$(wc -l $BL_IP_CAT/* | awk '{print $1}' | tail -n 1)
106 
# Chargement / loading
 108 
# Chargement / loading
107 
echo "create bl_ip_blocked hash:net family inet hashsize 1024 maxelem $bl_set_length" > $TMP_set_save
 109 
echo "create bl_ip_blocked hash:net family inet hashsize 1024 maxelem $bl_set_length" > $TMP_set_save
108 
for category in `ls -1 $BL_IP_CAT | cut -d '@' -f1`
 110 
for category in `ls -1 $BL_IP_CAT | cut -d '@' -f1`
109 
do
 111 
do
110 
	cat $BL_IP_CAT/$category >> $TMP_set_save
 112 
	cat $BL_IP_CAT/$category >> $TMP_set_save
111 
done
 113 
done
112 
ipset -! restore < $TMP_set_save
 114 
ipset -! restore < $TMP_set_save
113 
rm -f $TMP_set_save
 115 
rm -f $TMP_set_save
114 
# Suppression des ip réhabilitées / Removing of rehabilitated ip
 116 
# Suppression des ip réhabilitées / Removing of rehabilitated ip
115 
for ip in $(cat $IP_REHABILITEES)
 117 
for ip in $(cat $IP_REHABILITEES)
116 
do
 118 
do
117 
	ipset del bl_ip_blocked $ip
 119 
	ipset del bl_ip_blocked $ip
118 
done
 120 
done
119 
 
 121 
 
120 
###### WL set  ###########
 122 
###### WL set  ###########
121 
# taille fixe, car peupler par dnsmasq / fixe length due to dnsmasq dynamic loading
 123 
# taille fixe, car peupler par dnsmasq / fixe length due to dnsmasq dynamic loading
122 
wl_set_length=65536
 124 
wl_set_length=65536
123 
# Chargement Loading
 125 
# Chargement Loading
124 
echo "create wl_ip_allowed hash:net family inet hashsize 1024 maxelem $wl_set_length" > $TMP_set_save
 126 
echo "create wl_ip_allowed hash:net family inet hashsize 1024 maxelem $wl_set_length" > $TMP_set_save
125 
#get ip-wl files from ACC
 127 
#get ip-wl files from ACC
126 
for category in `ls -1 $WL_IP_CAT |cut -d '@' -f1`
 128 
for category in `ls -1 $WL_IP_CAT |cut -d '@' -f1`
127 
do
 129 
do
128 
	cat $WL_IP_CAT/$category >> $TMP_set_save
 130 
	cat $WL_IP_CAT/$category >> $TMP_set_save
129 
done
 131 
done
130 
ipset -! restore < $TMP_set_save
 132 
ipset -! restore < $TMP_set_save
131 
rm -f $TMP_set_save
 133 
rm -f $TMP_set_save
132 
 
 134 
 
133 
# Restoration des SET des utilisateurs connectés si ils existent sinon création des SET
135 
# Restoration des SET des utilisateurs connectés si ils existent sinon création des SET
134 
# Restoring the connected users SETs if available, otherwise creating SETs
 136 
# Restoring the connected users SETs if available, otherwise creating SETs
135 
if [ -e $TMP_users_set_save ];
 137 
if [ -e $TMP_users_set_save ];
136 
then
 138 
then
137 
	ipset -! restore < $TMP_users_set_save
 139 
	ipset -! restore < $TMP_users_set_save
138 
	rm -f $TMP_users_set_save
 140 
	rm -f $TMP_users_set_save
139 
else
 141 
else
140 
	ipset create not_filtered hash:net hashsize 1024
 142 
	ipset create not_filtered hash:net hashsize 1024
141 
	ipset create havp hash:net hashsize 1024
 143 
	ipset create havp hash:net hashsize 1024
142 
	ipset create havp_bl hash:net hashsize 1024
 144 
	ipset create havp_bl hash:net hashsize 1024
143 
	ipset create havp_wl hash:net hashsize 1024
 145 
	ipset create havp_wl hash:net hashsize 1024
144 
	#utilisé pour l'interception des utilisateurs non authentifiés au réseau
 146 
	#utilisé pour l'interception des utilisateurs non authentifiés au réseau
145 
	#used for intercepting users not connected to the network
 147 
	#used for intercepting users not connected to the network
146 
	ipset create not_auth_yet hash:net hashsize 1024
 148 
	ipset create not_auth_yet hash:net hashsize 1024
147 
	ipset create users_list list:set
 149 
	ipset create users_list list:set
148 
	ipset add users_list havp
 150 
	ipset add users_list havp
149 
	ipset add users_list havp_wl
 151 
	ipset add users_list havp_wl
150 
	ipset add users_list havp_bl
 152 
	ipset add users_list havp_bl
151 
	ipset add users_list not_filtered
 153 
	ipset add users_list not_filtered
152 
	ipset add users_list not_auth_yet
 154 
	ipset add users_list not_auth_yet
- 
 
 155 
	#pour les filtrages de protocole par utilisateur
- 
 
 156 
	ipset create proto_0 hash:net hashsize 1024
- 
 
 157 
	ipset create proto_1 hash:net hashsize 1024
- 
 
 158 
	ipset create proto_2 hash:net hashsize 1024
- 
 
 159 
	ipset create proto_3 hash:net hashsize 1024
153 
fi
 160 
fi
154 
 
 161 
 
155 
#############################
 162 
#############################
156 
#       PREROUTING          #
 163 
#       PREROUTING          #
157 
#############################
 164 
#############################
158 
 
 165 
 
159 
# Redirection des requetes DNS des utilisateurs non connectés dans le DNS-Blackhole
 166 
# Redirection des requetes DNS des utilisateurs non connectés dans le DNS-Blackhole
160 
# Redirect users not connected DNS requests in DNS-Blackhole
 167 
# Redirect users not connected DNS requests in DNS-Blackhole
161 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set ! --match-set users_list src -d $PRIVATE_IP -p tcp --dport domain -j REDIRECT --to-port 56
 168 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set ! --match-set users_list src -d $PRIVATE_IP -p tcp --dport domain -j REDIRECT --to-port 56
162 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set ! --match-set users_list src -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 56
 169 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set ! --match-set users_list src -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 56
163 
 
 170 
 
164 
 
 171 
 
165 
# Marquage des paquets qui tentent d'accéder directement à un serveur sans authentification en mode proxy pour pouvoir les rejeter en INPUT
 172 
# Marquage des paquets qui tentent d'accéder directement à un serveur sans authentification en mode proxy pour pouvoir les rejeter en INPUT
166 
# Mark packets that attempt to directly access a server without authentication with proxy client to reject them in INPUT rules
 173 
# Mark packets that attempt to directly access a server without authentication with proxy client to reject them in INPUT rules
167 
#$IPTABLES -A PREROUTING -t mangle -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp -m tcp --dport 80 -m string --string 'GET http' --algo bm --from 50 --to 70 -j MARK --set-mark 10
 174 
#$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
168 
 
 175 
 
169 
# Marquage (et journalisation) des paquets qui tentent d'accéder directement au 8080 (DansGuardian) pour pouvoir les rejeter en INPUT
 176 
# Marquage (et journalisation) des paquets qui tentent d'accéder directement au 8080 (DansGuardian) pour pouvoir les rejeter en INPUT
170 
# Mark (and log) the direct attempts to TCP port 8090 (dansguardian) in order to REJECT them in INPUT rules
 177 
# Mark (and log) the direct attempts to TCP port 8090 (dansguardian) in order to REJECT them in INPUT rules
171 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8080 -j NFLOG --nflog-prefix "RULE direct-proxy -- DENY "
 178 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8080 -j NFLOG --nflog-prefix "RULE direct-proxy -- DENY "
172 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8080 -j MARK --set-mark 1
 179 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8080 -j MARK --set-mark 1
173 
 
 180 
 
174 
# Marquage (et journalisation) des paquets qui tentent d'accéder directement au port 8090 (tinyproxy) pour pouvoir les rejeter en INPUT
 181 
# Marquage (et journalisation) des paquets qui tentent d'accéder directement au port 8090 (tinyproxy) pour pouvoir les rejeter en INPUT
175 
# Mark (and log) the direct attempts to TCP port 8090 (tinyproxy) in order to REJECT them in INPUT rules
 182 
# Mark (and log) the direct attempts to TCP port 8090 (tinyproxy) in order to REJECT them in INPUT rules
176 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8090 -j NFLOG --nflog-prefix "RULE direct-proxy -- DENY "
 183 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -p tcp -d $PRIVATE_IP -m tcp --dport 8090 -j NFLOG --nflog-prefix "RULE direct-proxy -- DENY "
177 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8090 -j MARK --set-mark 2
 184 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp -m tcp --dport 8090 -j MARK --set-mark 2
178 
 
 185 
 
179 
# Marquage des paquets qui tentent d'accéder directement au port 54 (DNS-blacklist) pour pouvoir les rejeter en INPUT
 186 
# Marquage des paquets qui tentent d'accéder directement au port 54 (DNS-blacklist) pour pouvoir les rejeter en INPUT
180 
# Mark the direct attempts to port 54 (DNS-blacklist) in order to REJECT them in INPUT rules
 187 
# Mark the direct attempts to port 54 (DNS-blacklist) in order to REJECT them in INPUT rules
181 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 54 -j MARK --set-mark 3
 188 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 54 -j MARK --set-mark 3
182 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 54 -j MARK --set-mark 3
 189 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 54 -j MARK --set-mark 3
183 
 
 190 
 
184 
# Marquage des paquets qui tentent d'accéder directement au port 55 (DNS-Whitelist) pour pouvoir les rejeter en INPUT
 191 
# Marquage des paquets qui tentent d'accéder directement au port 55 (DNS-Whitelist) pour pouvoir les rejeter en INPUT
185 
# Mark the direct attempts to port 55 (DNS-whitelist) in order to REJECT them in INPUT rules
 192 
# Mark the direct attempts to port 55 (DNS-whitelist) in order to REJECT them in INPUT rules
186 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 55 -j MARK --set-mark 4
 193 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 55 -j MARK --set-mark 4
187 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 55 -j MARK --set-mark 4
 194 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 55 -j MARK --set-mark 4
188 
 
 195 
 
189 
# Marquage des paquets qui tentent d'accéder directement au port 56 (DNS-Blackhole) pour pouvoir les rejeter en INPUT
 196 
# Marquage des paquets qui tentent d'accéder directement au port 56 (DNS-Blackhole) pour pouvoir les rejeter en INPUT
190 
# Mark the direct attempts to port 56 (DNS-blackhole) in order to REJECT them in INPUT rules
 197 
# Mark the direct attempts to port 56 (DNS-blackhole) in order to REJECT them in INPUT rules
191 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 56 -j MARK --set-mark 5
 198 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p tcp --dport 56 -j MARK --set-mark 5
192 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 56 -j MARK --set-mark 5
 199 
$IPTABLES -A PREROUTING -t mangle -i $TUNIF -d $PRIVATE_IP -p udp --dport 56 -j MARK --set-mark 5
193 
 
 200 
 
194 
# redirection DNS des usagers 'havp_bl' vers le port 54
 201 
# redirection DNS des usagers 'havp_bl' vers le port 54
195 
# redirect DNS of 'havp_bl' users to port 54
 202 
# redirect DNS of 'havp_bl' users to port 54
196 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 54
 203 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 54
197 
 
 204 
 
198 
# redirection DNS des usagers 'havp_wl' vers le port 55
 205 
# redirection DNS des usagers 'havp_wl' vers le port 55
199 
# redirect DNS of 'havp_wl' users to port 55
 206 
# redirect DNS of 'havp_wl' users to port 55
200 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 55
 207 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_wl src -d $PRIVATE_IP -p udp --dport domain -j REDIRECT --to-port 55
201 
 
 208 
 
202 
# Journalisation HTTP_Internet des usagers 'havp_bl' (paquets SYN uniquement). Les autres protocoles sont journalisés en FORWARD par netflow.
209 
# 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
 210 
# 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 state --state NEW -j NFLOG --nflog-prefix "RULE F_http -- ACCEPT "
 211 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -m set --match-set havp_bl src ! -d $PRIVATE_IP -p tcp --dport http -m state --state NEW -j NFLOG --nflog-prefix "RULE F_http -- ACCEPT "
205 
 
 212 
 
206 
# Redirection HTTP des usagers 'havp_bl' cherchant à joindre les IP de la blacklist vers ALCASAR (page 'accès interdit')
 213 
# 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)
 214 
# 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
 215 
$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 
 
 216 
 
210 
# Redirection HTTP des usagers 'havp_wl' cherchant à joindre les IP qui ne sont pas dans la WL vers ALCASAR (page 'accès interdit')
 217 
# 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)
 218 
# 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
 219 
$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 
 
 220 
 
214 
# Redirection des requêtes HTTP sortantes des usagers 'havp_bl' vers DansGuardian
 221 
# Redirection des requêtes HTTP sortantes des usagers 'havp_bl' vers DansGuardian
215 
# Redirect outbound HTTP requests of "BL" users to DansGuardian (transparent proxy)
 222 
# Redirect outbound HTTP requests of "BL" users to DansGuardian (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
 223 
$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 
 
 224 
 
218 
# Redirection des requêtes HTTP sortantes des usager 'havp_wl' et 'havp' vers Tinyproxy
 225 
# Redirection des requêtes HTTP sortantes des usager 'havp_wl' et 'havp' vers Tinyproxy
219 
# Redirect outbound HTTP requests for "WL-antivirus" users to Tinyproxy
 226 
# 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
 227 
$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
 228 
$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 
 
 229 
 
223 
# Redirection des requêtes NTP vers le serveur NTP local
 230 
# Redirection des requêtes NTP vers le serveur NTP local
224 
# Redirect NTP request in local NTP server
 231 
# 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
 232 
$IPTABLES -A PREROUTING -t nat -i $TUNIF -s $PRIVATE_NETWORK_MASK ! -d $PRIVATE_IP -p udp --dport ntp -j REDIRECT --to-port 123
226 
 
 233 
 
227 
#############################
 234 
#############################
228 
#         INPUT             #
 235 
#         INPUT             #
229 
#############################
 236 
#############################
230 
 
 237 
 
231 
# Tout passe sur loopback
 238 
# Tout passe sur loopback
232 
# accept all on loopback
 239 
# accept all on loopback
233 
$IPTABLES -A INPUT -i lo -j ACCEPT
 240 
$IPTABLES -A INPUT -i lo -j ACCEPT
234 
$IPTABLES -A OUTPUT -o lo -j ACCEPT
 241 
$IPTABLES -A OUTPUT -o lo -j ACCEPT
235 
 
 242 
 
236 
# Rejet des demandes de connexions non conformes (FIN-URG-PUSH, XMAS, NullScan, SYN-RST et NEW not SYN)
 243 
# 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)
 244 
# 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
 245 
$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
 246 
$IPTABLES -A INPUT -p tcp --tcp-flags ALL ALL -j DROP
240 
$IPTABLES -A INPUT -p tcp --tcp-flags ALL NONE -j DROP
 247 
$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
 248 
$IPTABLES -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -j DROP
242 
$IPTABLES -A INPUT -p tcp -m tcp ! --syn -m state --state NEW -j DROP
 249 
$IPTABLES -A INPUT -p tcp -m tcp ! --syn -m state --state NEW -j DROP
243 
 
 250 
 
244 
# Si configéré, on autorise les réponses DHCP
251 
# Si configéré, on autorise les réponses DHCP
245 
# Allow DHCP answers if configured
 252 
# Allow DHCP answers if configured
246 
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2`		# ALCASAR WAN IP address
 253 
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2`		# ALCASAR WAN IP address
247 
if [[ "$public_ip_mask" == "dhcp" ]]
 254 
if [[ "$public_ip_mask" == "dhcp" ]]
248 
then
 255 
then
249 
	$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 68 -j ACCEPT
 256 
	$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 68 -j ACCEPT
250 
	$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 68 -j ACCEPT
 257 
	$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 68 -j ACCEPT
251 
fi
 258 
fi
252 
# On rejette les trame en broadcast et en multicast sur EXTIF (évite leur journalisation)
 259 
# On rejette les trame en broadcast et en multicast sur EXTIF (évite leur journalisation)
253 
# Drop broadcast & multicast on EXTIF to avoid log
260 
# Drop broadcast & multicast on EXTIF to avoid log
254 
$IPTABLES -A INPUT -m addrtype --dst-type BROADCAST,MULTICAST -j DROP
 261 
$IPTABLES -A INPUT -m addrtype --dst-type BROADCAST,MULTICAST -j DROP
255 
 
 262 
 
256 
# On autorise les retours de connexions légitimes par INPUT
 263 
# On autorise les retours de connexions légitimes par INPUT
257 
# Conntrack on INPUT
 264 
# Conntrack on INPUT
258 
$IPTABLES -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
 265 
$IPTABLES -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
259 
 
 266 
 
260 
# On interdit les connexions directes au port utilisé par DansGuardian (8080). Les packets concernés ont été marqués et loggués dans la table mangle (PREROUTING)
 267 
# On interdit les connexions directes au port utilisé par DansGuardian (8080). Les packets concernés ont été marqués et loggués dans la table mangle (PREROUTING)
261 
# Deny direct connections on DansGuardian port (8080). The concerned paquets have been marked and logged in mangle table (PREROUTING)
 268 
# Deny direct connections on DansGuardian 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
 269 
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 8080 -m mark --mark 1 -j REJECT --reject-with tcp-reset
263 
 
 270 
 
264 
# Autorisation des connexions légitimes à DansGuardian
271 
# Autorisation des connexions légitimes à DansGuardian
265 
# Allow connections for DansGuardian
 272 
# Allow connections for DansGuardian
266 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8080 -m state --state NEW --syn -j ACCEPT
 273 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8080 -m state --state NEW --syn -j ACCEPT
267 
 
 274 
 
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)
 275 
# 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)
 276 
# 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
 277 
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 8090 -m mark --mark 2 -j REJECT --reject-with tcp-reset
271 
 
 278 
 
272 
# Autorisation des connexions légitimes vers tinyproxy
279 
# Autorisation des connexions légitimes vers tinyproxy
273 
# Allow connections to tinyproxy
 280 
# Allow connections to tinyproxy
274 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8090 -m state --state NEW --syn -j ACCEPT
 281 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport 8090 -m state --state NEW --syn -j ACCEPT
275 
 
 282 
 
276 
# On interdit les connexions directes au port 54 (DNS-blacklist). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
 283 
# 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)
 284 
# 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
 285 
$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
 286 
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 54 -m mark --mark 3 -j REJECT --reject-with tcp-reset
280 
 
 287 
 
281 
# On interdit les connexions directes au port 55 (DNS-whitelist). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
 288 
# 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)
 289 
# 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
 290 
$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
 291 
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 55 -m mark --mark 3 -j REJECT --reject-with tcp-reset
285 
 
 292 
 
286 
# On interdit les connexions directes au port 56 (DNS-Blackhole). Les packets concernés ont été marqués dans la table mangle (PREROUTING)
 293 
# 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)
 294 
# 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
 295 
$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
 296 
$IPTABLES -A INPUT -i $TUNIF -p tcp --dport 56 -m mark --mark 3 -j REJECT --reject-with tcp-reset
290 
 
 297 
 
291 
# autorisation des connexion légitime à DNSMASQ (avec blacklist)
 298 
# autorisation des connexion légitime à DNSMASQ (avec blacklist)
292 
# Allow connections for DNSMASQ (with blacklist)
 299 
# 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
 300 
$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
 301 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 54 -j ACCEPT
295 
 
 302 
 
296 
# autorisation des connexion légitime à DNSMASQ (avec whitelist)
 303 
# autorisation des connexion légitime à DNSMASQ (avec whitelist)
297 
# Allow connections for DNSMASQ (with whitelist)
 304 
# 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
 305 
$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
 306 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 55 -j ACCEPT
300 
 
 307 
 
301 
# autorisation des connexion légitime à DNSMASQ (mode blackhole)
 308 
# autorisation des connexion légitime à DNSMASQ (mode blackhole)
302 
# Allow connections for DNSMASQ (blackhole mode)
 309 
# 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
 310 
$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
 311 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 56 -j ACCEPT
305 
 
 312 
 
306 
# Accès direct aux services internes
 313 
# Accès direct aux services internes
307 
# Internal services access
 314 
# Internal services access
308 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p udp --dport domain -j ACCEPT	# DNS
315 
$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
 316 
$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
 317 
$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
 318 
$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
 319 
$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
 320 
$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 -j ACCEPT	# Requêtes de deconnexion usagers # Users logout requests
 321 
$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport 3990 -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
 322 
$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 
 
 323 
 
317 
# SSHD rules if activate
324 
# SSHD rules if activate
318 
if [ $SSH = on ]
 325 
if [ $SSH = on ]
319 
	then
 326 
	then
320 
	$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport ssh -m state --state NEW -j NFLOG --nflog-group 2 --nflog-prefix "RULE ssh-from-LAN -- ACCEPT"
 327 
	$IPTABLES -A INPUT -i $TUNIF -s $PRIVATE_NETWORK_MASK -d $PRIVATE_IP -p tcp --dport ssh -m state --state 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
 328 
	$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 state --state NEW --syn -j NFLOG --nflog-group 2 --nflog-prefix "RULE ssh-from-WAN -- ACCEPT"
 329 
	$IPTABLES -A INPUT -i $EXTIF -s $SSH_ADMIN_FROM -d $PUBLIC_IP -p tcp --dport ssh -m state --state 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 state --state NEW -j ACCEPT
 330 
	$IPTABLES -A INPUT -i $EXTIF -s $SSH_ADMIN_FROM -d $PUBLIC_IP -p tcp --dport ssh -m state --state NEW -j ACCEPT
324 
fi
 331 
fi
325 
 
 332 
 
326 
# Insertion de règles locales
 333 
# Insertion de règles locales
327 
# Here, we add local rules (i.e. VPN from Internet)
 334 
# Here, we add local rules (i.e. VPN from Internet)
328 
if [ -f /usr/local/etc/alcasar-iptables-local.sh ]; then
 335 
if [ -f /usr/local/etc/alcasar-iptables-local.sh ]; then
329 
        . /usr/local/etc/alcasar-iptables-local.sh
 336 
        . /usr/local/etc/alcasar-iptables-local.sh
330 
fi
 337 
fi
331 
 
 338 
 
332 
# Journalisation et rejet des connexions (autres que celles autorisées) effectuées depuis le LAN
 339 
# Journalisation et rejet des connexions (autres que celles autorisées) effectuées depuis le LAN
333 
# Deny and log on INPUT from the LAN
 340 
# Deny and log on INPUT from the LAN
334 
$IPTABLES -A INPUT -i $TUNIF -m state --state NEW -j NFLOG --nflog-prefix "RULE rej-int -- REJECT "
 341 
$IPTABLES -A INPUT -i $TUNIF -m state --state NEW -j NFLOG --nflog-prefix "RULE rej-int -- REJECT "
335 
$IPTABLES -A INPUT -i $TUNIF -p tcp -j REJECT --reject-with tcp-reset
 342 
$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
 343 
$IPTABLES -A INPUT -i $TUNIF -p udp -j REJECT --reject-with icmp-port-unreachable
337 
 
 344 
 
338 
# Interdiction d'accès à INTIF (n'est utile que lorsque chilli est arrêté).
 345 
# Interdiction d'accès à INTIF (n'est utile que lorsque chilli est arrêté).
339 
# Reject INTIF access (only when chilli is down)
 346 
# Reject INTIF access (only when chilli is down)
340 
$IPTABLES -A INPUT -i $INTIF -j NFLOG --nflog-prefix "RULE Protect1 -- REJECT "
 347 
$IPTABLES -A INPUT -i $INTIF -j NFLOG --nflog-prefix "RULE Protect1 -- REJECT "
341 
$IPTABLES -A INPUT -i $INTIF -j REJECT
 348 
$IPTABLES -A INPUT -i $INTIF -j REJECT
342 
 
 349 
 
343 
# Journalisation et rejet des connexions initiées depuis le réseau extérieur (test des effets du paramètre --limit en cours)
 350 
# 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)
 351 
# 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 state --state NEW -j NFLOG --nflog-group 3 --nflog-threshold 10 --nflog-prefix "RULE rej-ext -- DROP"
 352 
$IPTABLES -A INPUT -i $EXTIF -m state --state NEW -j NFLOG --nflog-group 3 --nflog-threshold 10 --nflog-prefix "RULE rej-ext -- DROP"
346 
 
 353 
 
347 
#############################
 354 
#############################
348 
#        FORWARD            #
 355 
#        FORWARD            #
349 
#############################
 356 
#############################
350 
 
 357 
 
351 
# Blocage des IPs du SET bl_ip_blocked pour le SET havp_bl
 358 
# 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
 359 
# 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-port-unreachable
 360 
$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-port-unreachable
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-port-unreachable
 361 
$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-port-unreachable
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
 362 
$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 
 
 363 
 
357 
# Rejet des requêtes DNS vers Internet
 364 
# Rejet des requêtes DNS vers Internet
358 
# Deny forward DNS
 365 
# Deny forward DNS
359 
$IPTABLES -A FORWARD -i $TUNIF -p udp --dport domain -j REJECT --reject-with icmp-port-unreachable
 366 
$IPTABLES -A FORWARD -i $TUNIF -p udp --dport domain -j REJECT --reject-with icmp-port-unreachable
360 
$IPTABLES -A FORWARD -i $TUNIF -p tcp --dport domain -j REJECT --reject-with tcp-reset
 367 
$IPTABLES -A FORWARD -i $TUNIF -p tcp --dport domain -j REJECT --reject-with tcp-reset
361 
 
 368 
 
362 
# Autorisation des retours de connexions légitimes
 369 
# Autorisation des retours de connexions légitimes
363 
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
 370 
$IPTABLES -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
364 
 
 371 
 
365 
#  If protocols filter is activate
 - 
 
366 
if [ $PROTOCOLS_FILTERING = on ]; then
 - 
 
367 
	# Compute uamallowed IP (IP address of equipments connected between ALCASAR and Internet (DMZ, own servers, ...)
372 
# Compute uamallowed IP (IP address of equipments connected between ALCASAR and Internet (DMZ, own servers, ...)
368 
	nb_uamallowed=`wc -l /usr/local/etc/alcasar-uamallowed | cut -d" "  -f1`
 373 
nb_uamallowed=`wc -l /usr/local/etc/alcasar-uamallowed | cut -d" "  -f1`
369 
	if [ $nb_uamallowed != "0" ]
 374 
if [ $nb_uamallowed != "0" ]
370 
	then
 375 
then
371 
		while read ip_allowed_line
376 
	while read ip_allowed_line
372 
		do
 - 
 
373 
			ip_allowed=`echo $ip_allowed_line|cut -d"\"" -f2`
 - 
 
374 
			$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NFLOG --nflog-prefix "RULE IP-allowed -- ACCEPT "
 - 
 
375 
			$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NETFLOW
 - 
 
376 
			$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j ACCEPT
 - 
 
377 
		done < /usr/local/etc/alcasar-uamallowed
 - 
 
378 
	fi
 - 
 
379 
	# Autorisation du HTTP et des protocoles non commentés
 - 
 
380 
	# Allow HTTP and non comment protocols
 - 
 
381 
	$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-$svc_name -- ACCEPT "
 - 
 
382 
	$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NETFLOW
 - 
 
383 
	$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j ACCEPT
 - 
 
384 
	while read svc_line
 - 
 
385 
	do
 377 
	do
386 
		svc_on=`echo $svc_line|cut -b1`
 - 
 
387 
		if [ $svc_on != "#" ]
 - 
 
388 
		then
- 
 
389 
			svc_name=`echo $svc_line|cut -d" " -f1`
 - 
 
390 
			svc_port=`echo $svc_line|cut -d" " -f2`
 378 
		ip_allowed=`echo $ip_allowed_line|cut -d"\"" -f2`
391 
			if [ $svc_name = "icmp" ]
 - 
 
392 
			then
 - 
 
393 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p icmp -j NETFLOW
 - 
 
394 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p icmp -j ACCEPT
- 
 
395 
			else
 - 
 
396 
 
 - 
 
397 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-$svc_name -- ACCEPT "
 - 
 
398 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NETFLOW
 - 
 
399 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j ACCEPT
 - 
 
400 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-$svc_name -- ACCEPT "
 379 
		$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NFLOG --nflog-prefix "RULE IP-allowed -- ACCEPT "
401 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NETFLOW
 380 
		$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j NETFLOW
402 
				$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j ACCEPT
 381 
		$IPTABLES -A FORWARD -i $TUNIF -d $ip_allowed -m state --state NEW -j ACCEPT
403 
			fi
 - 
 
404 
		fi
 - 
 
405 
	done < /usr/local/etc/alcasar-services
 382 
	done < /usr/local/etc/alcasar-uamallowed
406 
	# Rejet explicite des autres protocoles
 - 
 
407 
	# reject the others protocols
 - 
 
408 
	$IPTABLES -A FORWARD -i $TUNIF -j NFLOG --nflog-prefix "RULE F_filter -- REJECT "
 - 
 
409 
	$IPTABLES -A FORWARD -i $TUNIF -p tcp -j REJECT --reject-with tcp-reset
 - 
 
410 
	$IPTABLES -A FORWARD -i $TUNIF -p udp -j REJECT --reject-with icmp-port-unreachable
 - 
 
411 
	$IPTABLES -A FORWARD -i $TUNIF -p icmp -j REJECT
- 
 
412 
fi
 383 
fi
413 
 
 384 
 
- 
 
 385 
 
- 
 
 386 
 
- 
 
 387 
#filtrage protocole par utilisateur (on autorise le HTTP pour tous)
- 
 
 388 
#profile 1 : HTTP/S only
- 
 
 389 
for proto in $(echo http https)
- 
 
 390 
do
- 
 
 391 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P1$proto -- ACCEPT "
- 
 
 392 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NETFLOW
- 
 
 393 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j ACCEPT
- 
 
 394 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-P1$proto -- ACCEPT "
- 
 
 395 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NETFLOW
- 
 
 396 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_1 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j ACCEPT
- 
 
 397 
done
- 
 
 398 
 
- 
 
 399 
#profile 2 : HTTP/S, POP3S, IMAP/S, FTP, SSH/SFTP
- 
 
 400 
for proto in $(echo http https pop3 pop3s imap imaps ftp sftp ssh)
- 
 
 401 
do
- 
 
 402 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P2$proto -- ACCEPT "
- 
 
 403 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j NETFLOW
- 
 
 404 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $proto -m state --state NEW -j ACCEPT
- 
 
 405 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-P2$proto -- ACCEPT "
- 
 
 406 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j NETFLOW
- 
 
 407 
	$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_2 src -s $PRIVATE_NETWORK_MASK -p udp --dport $proto -m state --state NEW -j ACCEPT
- 
 
 408 
done
- 
 
 409 
 
- 
 
 410 
#profile 3 personalisables via l'ACC
- 
 
 411 
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P3http -- ACCEPT "
- 
 
 412 
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j NETFLOW
- 
 
 413 
$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport http -m state --state NEW -j ACCEPT
- 
 
 414 
while read svc_line
- 
 
 415 
do
- 
 
 416 
	svc_on=`echo $svc_line|cut -b1`
- 
 
 417 
	if [ $svc_on != "#" ]
- 
 
 418 
	then
- 
 
 419 
		svc_name=`echo $svc_line|cut -d" " -f1`
- 
 
 420 
		svc_port=`echo $svc_line|cut -d" " -f2`
- 
 
 421 
		if [ $svc_name = "icmp" ]
- 
 
 422 
		then
- 
 
 423 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p icmp -j NETFLOW
- 
 
 424 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p icmp -j ACCEPT
- 
 
 425 
		else
- 
 
 426 
 
- 
 
 427 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_TCP-P3$svc_name -- ACCEPT "
- 
 
 428 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j NETFLOW
- 
 
 429 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p tcp --dport $svc_port -m state --state NEW -j ACCEPT
- 
 
 430 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NFLOG --nflog-prefix "RULE F_UDP-P3$svc_name -- ACCEPT "
- 
 
 431 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j NETFLOW
- 
 
 432 
			$IPTABLES -A FORWARD -i $TUNIF -m set --match-set proto_3 src -s $PRIVATE_NETWORK_MASK -p udp --dport $svc_port -m state --state NEW -j ACCEPT
- 
 
 433 
		fi
- 
 
 434 
	fi
- 
 
 435 
done < /usr/local/etc/alcasar-services
- 
 
 436 
 
- 
 
 437 
# Rejet explicite des autres protocoles pour P1, P2, P3 et les autres
- 
 
 438 
# reject the others protocols for P1,P2, P3 and other
- 
 
 439 
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -j NFLOG --nflog-prefix "RULE F_filterP1 -- REJECT "
- 
 
 440 
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -p tcp -j REJECT --reject-with tcp-reset
- 
 
 441 
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -p udp -j REJECT --reject-with icmp-port-unreachable
- 
 
 442 
$IPTABLES -A FORWARD -i $TUNIF -m set ! --match-set proto_0 src -p icmp -j REJECT
- 
 
 443 
 
- 
 
 444 
 
- 
 
 445 
 
414 
# Autorisation des connections sortant du LAN
446 
# Autorisation des connections sortant du LAN
415 
# Allow forward connections with log
 447 
# Allow forward connections with log
416 
#$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m state --state NEW -j ULOG --ulog-prefix "RULE F_all -- ACCEPT "
 448 
#$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m state --state NEW -j ULOG --ulog-prefix "RULE F_all -- ACCEPT "
417 
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m state --state NEW -j NETFLOW
 449 
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m state --state NEW -j NETFLOW
418 
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m state --state NEW -j ACCEPT
 450 
$IPTABLES -A FORWARD -i $TUNIF -s $PRIVATE_NETWORK_MASK -m state --state NEW -j ACCEPT
419 
 
 451 
 
420 
#############################
 452 
#############################
421 
#         OUTPUT            #
 453 
#         OUTPUT            #
422 
#############################
 454 
#############################
423 
# On laisse tout sortir sur toutes les cartes sauf celle qui est connectée sur l'extérieur
 455 
# On laisse tout sortir sur toutes les cartes sauf celle qui est connectée sur l'extérieur
424 
# Everything is allowed but traffic through outside network interface
 456 
# Everything is allowed but traffic through outside network interface
425 
$IPTABLES -A OUTPUT ! -o $EXTIF -j ACCEPT
 457 
$IPTABLES -A OUTPUT ! -o $EXTIF -j ACCEPT
426 
 
 458 
 
427 
# Si configéré, on autorise les requêtes DHCP
459 
# Si configéré, on autorise les requêtes DHCP
428 
# Allow DHCP requests if configured
 460 
# Allow DHCP requests if configured
429 
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2`		# ALCASAR WAN IP address
 461 
public_ip_mask=`grep ^PUBLIC_IP= $CONF_FILE|cut -d"=" -f2`		# ALCASAR WAN IP address
430 
if [[ "$public_ip_mask" == "dhcp" ]]
 462 
if [[ "$public_ip_mask" == "dhcp" ]]
431 
then
 463 
then
432 
	$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 67 -j ACCEPT
 464 
	$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport 67 -j ACCEPT
433 
	$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 67 -j ACCEPT
 465 
	$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport 67 -j ACCEPT
434 
fi
 466 
fi
435 
 
 467 
 
436 
# On autorise les requêtes DNS vers les serveurs DNS identifiés
468 
# On autorise les requêtes DNS vers les serveurs DNS identifiés
437 
# Allow DNS requests to identified DNS servers
 469 
# Allow DNS requests to identified DNS servers
438 
$IPTABLES -A OUTPUT -o $EXTIF -d $DNSSERVERS -p udp --dport domain -m state --state NEW -j ACCEPT
 470 
$IPTABLES -A OUTPUT -o $EXTIF -d $DNSSERVERS -p udp --dport domain -m state --state NEW -j ACCEPT
439 
 
 471 
 
440 
# On autorise les requêtes HTTP sortantes
 472 
# On autorise les requêtes HTTP sortantes
441 
# HTTP requests are allowed
 473 
# HTTP requests are allowed
442 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j NETFLOW
 474 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j NETFLOW
443 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j ACCEPT
 475 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport http -j ACCEPT
444 
 
 476 
 
445 
# On autorise les requêtes RSYNC sortantes (maj BL de Toulouse)
 477 
# On autorise les requêtes RSYNC sortantes (maj BL de Toulouse)
446 
# RSYNC requests are allowed (to update BL of Toulouse)
 478 
# RSYNC requests are allowed (to update BL of Toulouse)
447 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport rsync -j ACCEPT
 479 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport rsync -j ACCEPT
448 
 
 480 
 
449 
# On autorise les requêtes FTP
481 
# On autorise les requêtes FTP
450 
# FTP requests are allowed
 482 
# FTP requests are allowed
451 
modprobe nf_conntrack_ftp
 483 
modprobe nf_conntrack_ftp
452 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport ftp -j ACCEPT
 484 
$IPTABLES -A OUTPUT -o $EXTIF -p tcp --dport ftp -j ACCEPT
453 
$IPTABLES -A OUTPUT -o $EXTIF -m state --state ESTABLISHED,RELATED -j ACCEPT
 485 
$IPTABLES -A OUTPUT -o $EXTIF -m state --state ESTABLISHED,RELATED -j ACCEPT
454 
 
 486 
 
455 
# On autorise les requêtes NTP
487 
# On autorise les requêtes NTP
456 
# NTP requests are allowed
 488 
# NTP requests are allowed
457 
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport ntp -j ACCEPT
 489 
$IPTABLES -A OUTPUT -o $EXTIF -p udp --dport ntp -j ACCEPT
458 
 
 490 
 
459 
# On autorise les requêtes ICMP (ping)
491 
# On autorise les requêtes ICMP (ping)
460 
# ICMP (ping) requests are allowed
 492 
# ICMP (ping) requests are allowed
461 
$IPTABLES -A OUTPUT -o $EXTIF -p icmp --icmp-type 8 -j ACCEPT
 493 
$IPTABLES -A OUTPUT -o $EXTIF -p icmp --icmp-type 8 -j ACCEPT
462 
 
 494 
 
463 
# On autorise les requêtes LDAP si un serveur externe est configué
 495 
# On autorise les requêtes LDAP si un serveur externe est configué
464 
# LDAP requests are allowed if an external server is declared
 496 
# LDAP requests are allowed if an external server is declared
465 
if [ $LDAP = on ]
 497 
if [ $LDAP = on ]
466 
	then
 498 
	then
467 
	$IPTABLES -A OUTPUT -p tcp -d $LDAP_IP -m multiport --dports ldap,ldaps -m state --state NEW,ESTABLISHED -j ACCEPT
 499 
	$IPTABLES -A OUTPUT -p tcp -d $LDAP_IP -m multiport --dports ldap,ldaps -m state --state NEW,ESTABLISHED -j ACCEPT
468 
	$IPTABLES -A OUTPUT -p udp -d $LDAP_IP -m multiport --dports ldap,ldaps -m state --state NEW,ESTABLISHED -j ACCEPT
 500 
	$IPTABLES -A OUTPUT -p udp -d $LDAP_IP -m multiport --dports ldap,ldaps -m state --state NEW,ESTABLISHED -j ACCEPT
469 
fi
 501 
fi
470 
 
 502 
 
471 
#############################
 503 
#############################
472 
#       POSTROUTING         #
 504 
#       POSTROUTING         #
473 
#############################
 505 
#############################
474 
# Traduction dynamique d'adresse en sortie
 506 
# Traduction dynamique d'adresse en sortie
475 
# Dynamic NAT on EXTIF
 507 
# Dynamic NAT on EXTIF
476 
$IPTABLES -A POSTROUTING -t nat -o $EXTIF -j MASQUERADE
 508 
$IPTABLES -A POSTROUTING -t nat -o $EXTIF -j MASQUERADE
477 
 
 509 
 
478 
# End of script
 510 
# End of script
479 
 
 511 
 
480 
 
 512