Hi Amos, I'm still trying to configure login pass-through. Now, I'm using negotiate / kerberos. On the frontend machine, I enabled login = PASSTHRU in the cache_peer configuration line. As previously stated, the authentication is present only on the parent machine. The cache.log of my parent machine show this: 2016/11/24 09:51:13 kid1 | ERROR: Negotiate Authentication validating user. Result: {result = BH, notes = {message: gss_accept_sec_context () failed: Unspecified GSS failure. Minor code may provide more information. Can not decrypt ticket for HTTP/frontend.domain.com@xxxxxxxxxx using keytab key for HTTP/parent.domain.com@xxxxxxxxxx; }} If I use the parent machine as a frontend machine, it works perfectly including the authentication. But, when I enable the cache_peer ... login=PASSTHRU, the error above happen. Someone knows how to solve that? -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Authentication-pass-through-cache-peer-tp4680587p4680647.html Sent from the Squid - Users mailing list archive at Nabble.com. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users