Hi, I am new to Red Hat Linux 4.0 and squid. We have configured proxy setting. We have facing some proxy related issue. Maximum website can browse except few (e.g Yahoo mail, YouTube etc.) While trying it gives "Unable to determine IP address from host name for yahoomail.com" and "Refused: The name server refuses to perform the specified operation."It is noted that I am using DNS server and proxy server for the same machine using Red Hat. Please, give me give solution for how to browse yahoo mail and others.