Internet Trouble

I am using hardy heron Ubuntui install it on my usb disk. every thing is working fine, but not internet.i configured each part of network correctly it pings well, IPV6 is already disabled but still not opening any site. i want to use internet on it but internet is not workingPlease tell me some solution

maybe you need to set your

maybe you need to set your DNS.
try /etc/resolve.
good luck