*filter
:INPUT DROP [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -i lo -j ACCEPT
-A FORWARD -i lo -j ACCEPT
-A INPUT -m state --state INVALID -j DROP
-A INPUT -p icmp -m icmp --icmp-type 0 -m length --length 30:1100 -m limit --limit 4/sec -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 0 -j DROP
-A INPUT -p icmp -m icmp --icmp-type 8 -m length --length 30:1100 -m limit --limit 4/sec -j ACCEPT
-A INPUT -p icmp -m icmp --icmp-type 8 -j DROP
-A INPUT -p icmp -j ACCEPT
-A INPUT -p tcp --dport 2250 -j ACCEPT
-A INPUT -p tcp -m multiport --dports 53,67,80,3128,953,443 -j ACCEPT
-A INPUT -p udp -m multiport --dports 53,67,80,3128,953,443 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p tcp --dport 22 -j ACCEPT



-N ALTECNOLOGIC
-A FORWARD -j ALTECNOLOGIC
-A ALTECNOLOGIC -s 186.202.119.188 -j ACCEPT
-A ALTECNOLOGIC -d 186.202.119.188 -j ACCEPT

-A ALTECNOLOGIC -j DROP


COMMIT
*nat
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A POSTROUTING -o eth0 -j MASQUERADE
-N ALTECNOLOGIC

-A PREROUTING -i eth1 -j ALTECNOLOGIC
-A ALTECNOLOGIC -d 186.202.119.188 -j ACCEPT


# Captura pacotes DNS e HTTP
-A ALTECNOLOGIC -p tcp -m multiport --dports 53,80,443 -j REDIRECT
-A ALTECNOLOGIC -p udp -m multiport --dports 53,80,443 -j REDIRECT

COMMIT