help using ipchains

[Ronnie]

hello im trying to set up a firewall with the help of "Hacking Linux
Exposed".  Unfortunately now i cant view webpages from my linux box. 
These are the steps that i did:

/sbin/ipchains -P input DENY
/sbin/ipchains -A input -s 0/0 -d 172.128.0.10 www -p tcp -j ACCEPT
/sbin/ipchains -A input -s 0/0 -d 172.128.0.10 ssh -p tcp -j ACCEPT
/sbin/ipchains -A input -j DENY -l

now when i try to connect to the outside world, i cant.

thanks,
Ronnie