Hello, I'm trying to configure Squid 3.1 to authenticate through AD with W2K8 DC with Kerberos. I used this how-to: http://wiki.squid-cache.org/ConfigExamples/Authenticate/Kerberos on CentOS 6 box that I've joined to domain with `net ads join`. Now I'm getting the error in cache.log when I'm trying to visit any URL through this proxy: 2013/10/30 17:07:41| squid_kerb_auth: DEBUG: Got 'YR base64 encoded data' from squid (length: 2295). 2013/10/30 17:07:41| squid_kerb_auth: DEBUG: Decode 'base64 encoded data' (decoded length: 1717). 2013/10/30 17:07:41| squid_kerb_auth: ERROR: gss_acquire_cred() failed: Unspecified GSS failure. Minor code may provide more information. 2013/10/30 17:07:41| authenticateNegotiateHandleReply: Error validating user via Negotiate. Error returned 'BH gss_acquire_cred() failed: Unspecified GSS failure. Minor code may provide more information. ' I could not figure out what the "minor code" is... I googled a lot with no luck. Any help is very appreciated. Thanks in advance!