This may seem stupid, How can we configure squid to allow employees to modify their own hosts file in windows to work? Currently if someone has a host file entry that points to a non-existent domain, they can ping it from their workstations fine, but when they browse they get the squid error page. Is there a way to tell squid to allow this kind of request or will I need to build up a hosts file on the transparent proxy itself. The following error was encountered: Unable to determine IP address from host name for whatever.whatever.com The dnsserver returned: Name Error: The domain name does not exist. This means that: The cache was not able to resolve the hostname presented in the URL. Check if the address is correct. Regards, Nick