-X
-F
-P INPUT DROP
-P FORWARD DROP
-P OUTPUT DROP

# on autorise les boucles locales
-A INPUT -i lo -j ACCEPT
-A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT

-A INPUT  -i eth0 -m state --state ESTABLISHED,RELATED -j ACCEPT

# DNS
-A OUTPUT         -p udp --dport domain -j ACCEPT

# https
-A INPUT  -i eth0  -p tcp -m multiport --dports http,https -j ACCEPT
-A OUTPUT          -p tcp -m multiport --sports http,https -j ACCEPT
-A OUTPUT          -p tcp --dport https -j ACCEPT
#-A INPUT  -i eth0 -m state --state NEW,ESTABLISHED -p tcp --dport https -j ACCEPT
#-A OUTPUT         -m state --state ESTABLISHED     -p tcp --sport https -j ACCEPT

## http pour maj
-A OUTPUT -m owner --uid-owner root -p tcp --dport http -j ACCEPT
-A OUTPUT -m owner --uid-owner www-data -p tcp --dport http -j ACCEPT
-A OUTPUT -m owner --uid-owner sms -p tcp --dport http -j ACCEPT
-A OUTPUT -m owner --uid-owner action -p tcp --dport http -j ACCEPT

#OUTPUT denied: IN= OUT=lo SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=1913 DF PROTO=TCP SPT=49487 DPT=8080 WINDOW=43690 RES=0x00 SYN URGP=0 
-A OUTPUT -p tcp --destination 127.0.0.1 --dport http-alt -j ACCEPT
#OUTPUT denied: IN= OUT=lo SRC=127.0.0.1 DST=127.0.0.1 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP SPT=8080 DP
-A OUTPUT -p tcp --destination 127.0.0.1 --sport http-alt -j ACCEPT

# SSH uniquement depuis 192.168.1.51
-A INPUT  -i eth0 -m state --state NEW,ESTABLISHED -p tcp --dport ssh --source 192.168.1.51      -j ACCEPT
-A OUTPUT         -m state --state ESTABLISHED     -p tcp --sport ssh --destination 192.168.1.51 -j ACCEPT

# envoi de courrier pour les membres du groupe mail (sélection par la conf de ssmtp)
-A OUTPUT         -m state --state NEW,ESTABLISHED -p tcp --dport ssmtp -j ACCEPT
-A INPUT  -i eth0 -m state --state ESTABLISHED     -p tcp --dport ssmtp -j ACCEPT

# NTP
-A OUTPUT         -m state --state NEW,ESTABLISHED -p udp --sport ntp -j ACCEPT

# SaMBa
-A OUTPUT   -p tcp --destination 192.168.1.51,192.168.1.254 -m multiport --dports microsoft-ds,netbios-ssn -j ACCEPT

# XMPP
-A INPUT -p tcp --source 192.168.1.52,192.168.1.55 --dport xmpp-client -j ACCEPT
-A OUTPUT -p tcp --destination 192.168.1.52,192.168.1.55 --sport xmpp-client -j ACCEPT

-A INPUT -p tcp --source 192.168.1.52 --sport xmpp-client -j ACCEPT
-A OUTPUT -p tcp --destination 192.168.1.52 --dport xmpp-client -j ACCEPT

# log iptables denied calls (access via 'dmesg' command)
#-A INPUT  -p tcp -j LOG --log-prefix "INPUT denied: " --log-level 7
#-A OUTPUT -p tcp -j LOG --log-prefix "OUTPUT denied: " --log-level 7
#-A INPUT  -i eth0 -m limit --limit 5/min -j LOG --log-prefix "INPUT denied: " --log-level 7
#-A OUTPUT         -m limit --limit 5/min -j LOG --log-prefix "OUTPUT denied: " --log-level 7

# tout le reste dehors
-A INPUT   -j DROP
-A FORWARD -j DROP
-A OUTPUT  -j DROP