Hey, I installed and configured squid 2.6 stable, everything was working fine till my users started complaining of forbidden errors on certain websites The exact error that was reported was <s> Forbidden You do not have permission to access / on this server. Additionally, A 500 Internal Server error was encountered while trying to use an ErrorDocument to handle the request. </s> After some tcpdumping, it became clear that those websites require HTTP/1.0 and squid 2.6 sends HTTP/1.0 headers. The only way to fix this for me was to upgrade to 2.7 and enable the server_http11 option on. I am sure about this issue being caused due to this issue, because on 2.7 if I disable server_http11 I again get the forbidden message and turning it on allows the website to load normally. Regards, Muhammed Sameer