Hi, I want to thank you all for your efforts, finally it works i have to disable IPV6 protocole on clients and it works perfectly. Thank you again Regards, Khalil -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/squid3-block-all-443-ports-request-tp4664735p4664884.html Sent from the Squid - Users mailing list archive at Nabble.com.