Hi, BTW, below is the latest alert log ==> /var/log/squid/cache.log <== 2013/12/22 08:39:39| squid_kerb_auth: DEBUG: Got 'YR TlRMTVNTUAABAAAAt4II4gAAAAAAAAAAAAAAAAAAAAAFASgKAAAADw==' from squid (length: 59). 2013/12/22 08:39:39| squid_kerb_auth: DEBUG: Decode 'TlRMTVNTUAABAAAAt4II4gAAAAAAAAAAAAAAAAAAAAAFASgKAAAADw==' (decoded length: 40). 2013/12/22 08:39:39| squid_kerb_auth: WARNING: received type 1 NTLM token 2013/12/22 08:39:39| authenticateNegotiateHandleReply: Error validating user via Negotiate. Error returned 'BH received type 1 NTLM token' -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/squid-proxy-kerberos-authentication-failure-Help-tp4663964p4663967.html Sent from the Squid - Users mailing list archive at Nabble.com.