iptables

gistfile1.txt

*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]

-A INPUT -i lo -j ACCEPT
-A INPUT -d 127.0.0.0/8 ! -i lo -j REJECT --reject-with icmp-port-unreachable
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 1010 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 1011 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 4000 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p udp -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
-A INPUT -j REJECT
-A FORWARD -j REJECT
-A OUTPUT -j ACCEPT
COMMIT

*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]

-A PREROUTING -i eth0 -p tcp --dport 3030 -j REDIRECT --to-ports 1010
-A PREROUTING -i eth0 -p udp --dport 3030 -j REDIRECT --to-ports 1010
-A PREROUTING -i eth0 -p tcp --dport 10000:19999 -j REDIRECT --to-ports 1011
-A PREROUTING -i eth0 -p udp --dport 10000:19999 -j REDIRECT --to-ports 1011
COMMIT