basic iptables ruleset

iptables-template

# Generated by iptables-save v1.4.12 on Tue Oct 21 17:32:08 2014
*nat
:PREROUTING ACCEPT [9:538]
:INPUT ACCEPT [9:538]
:OUTPUT ACCEPT [4:271]
:POSTROUTING ACCEPT [4:271]
COMMIT
# Completed on Tue Oct 21 17:32:08 2014
# Generated by iptables-save v1.4.12 on Tue Oct 21 17:32:08 2014
*mangle
:PREROUTING ACCEPT [573:37929]
:INPUT ACCEPT [573:37929]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [462:72146]
:POSTROUTING ACCEPT [462:72146]
COMMIT
# Completed on Tue Oct 21 17:32:08 2014
# Generated by iptables-save v1.4.12 on Tue Oct 21 17:32:08 2014
*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT DROP [0:0]
-A INPUT -i lo -j ACCEPT
-A INPUT -p icmp -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 20:21 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 110 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 143 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 25 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 4190 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p udp -m udp --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 30000:50000 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT
-A INPUT -m state --state ESTABLISHED -j ACCEPT
-A OUTPUT -o lo -j ACCEPT
-A OUTPUT -p icmp -m state --state NEW,ESTABLISHED -j ACCEPT
-A OUTPUT -p udp -m state --state NEW,ESTABLISHED -j ACCEPT
-A OUTPUT -p tcp -m state --state NEW,ESTABLISHED -j ACCEPT
COMMIT
# Completed on Tue Oct 21 17:32:08 2014