> Thank you very much for you help i also thought for the same but it > doesn't help me. because i like to block this on certain time window. > like it will b allowed only in lunch hours or after COB so this might > not work. any suggestion on this scenario. > I was interested in this thread as I had not considered access to denied sites that use https (like facebook). I found this link which may help you. http://www.squid-cache.org/mail-archive/squid-users/201008/0475.html