> this is the websites > http://www.cipherdyne.org/fwsnort/ > > here iptables are providing --replace-string it is not > working fine giving errors to me. Hmmmm. Did you read that site yourself? Did you follow the instructions on that site for getting --replace-string to work? Or did you just glaze over that site and come back here and post to us? > I am waiting for quick response. You are pushy and impatient.