*filter
:INPUT DROP
:FORWARD ACCEPT
:OUTPUT ACCEPT
-A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p icmp --icmp-type ping -j ACCEPT
-A INPUT -p tcp --dport 22 -j ACCEPT
-A INPUT -p tcp --dport 5665 -j ACCEPT
-A INPUT -p tcp --dport 9001 -j ACCEPT
-A INPUT -p tcp -m multiport --dports 5269,5222 -j ACCEPT
-A INPUT -p udp --dport 1194 -j ACCEPT
-A INPUT -p udp --dport 53 -s 10.8.0.1/24 -j ACCEPT
-A INPUT -p tcp --dport 53 -s 10.8.0.1/24 -j ACCEPT
COMMIT
*nat
:PREROUTING ACCEPT
:INPUT ACCEPT
:OUTPUT ACCEPT
:POSTROUTING ACCEPT
-A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE
COMMIT