freebsd 6.0 personal firewall

Hello, I have few questions: 1) How do i block websites by typing their url name (eg. www.yahoo.com) using built in freebsd 6.0 firewall? 2) Do i have to configure the hosts.allow file to block websites and must i know their IP address to block websites? Can i block them by their URL names?

firewall

hello, i have another question, Do i have to install IPTable before configuring hosts.allow file? thanks __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com