Hi, I am using FreeBSD 8.1, samba 3.6.9 and squid 3.2.6. The /etc/krb5.conf file: [logging] default = FILE:/var/log/krb.log kdc = FILE:/var/log/krb.log admin_server = FILE:/var/log/krb.log default_keytab_name = /usr/local/etc/squid/HTTP.keytab [libdefaults] default_realm = MDPT.LOCAL dns_lookup_realm = no dns_lookup_kdc = no ticket_lifetime = 24h forwardable = yes default_tgs_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc-crc des-cbc-md5 default_tkt_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc-crc des-cbc-md5 permitted_enctypes = aes256-cts-hmac-sha1-96 rc4-hmac des-cbc-crc des-cbc-md5 [realms] EXAMPLE.LOCAL = { kdc = ads01.example.local:88 admin_server = ads01.example.local:464 default_domain = EXAMPLE.LOCAL } [domain_realm] .domain.local = EXAMPLE.LOCAL domain.local = EXAMPLE.LOCAL [appdefaults] pam = { ticket_lifetime = 1d renew_lifetime = 1d forwardable = true proxiable = false retain_after_close = false minimum_uid = 1 } # klist Credentials cache: FILE:/tmp/krb5cc_0 Principal: xkoren@EXAMPLE.LOCAL Issued Expires Principal Jan 29 13:26:54 Jan 29 23:26:54 HTTP/squid2@EXAMPLE.LOCAL and I get the following error: 2013/01/29 13:36:30 kid1| Starting new negotiateauthenticator helpers... 2013/01/29 13:36:30 kid1| helperOpenServers: Starting 1/32 'negotiate_wrapper_auth' processes 2013/01/29 13:36:30 kid1| WARNING: no_suid: setuid(0): (1) Operation not permitted 2013/01/29 13:36:30| negotiate_wrapper: Starting version 1.0.1 2013/01/29 13:36:30| negotiate_wrapper: NTLM command: /usr/local/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp 2013/01/29 13:36:30| negotiate_wrapper: Kerberos command: /usr/local/libexec/squid/negotiate_kerberos_auth -d -s GSS_C_NO_NAME 2013/01/29 13:36:30| negotiate_wrapper: Got 'YR TlRMTVNTUAABAAAAl4II4gAAAAAAAAAAAAAAAAAAAAAGAbEdAAAADw==' from squid (length: 59). 2013/01/29 13:36:30| negotiate_wrapper: Decode 'TlRMTVNTUAABAAAAl4II4gAAAAAAAAAAAAAAAAAAAAAGAbEdAAAADw==' (decoded length: 40). 2013/01/29 13:36:30| negotiate_wrapper: received type 1 NTLM token negotiate_kerberos_auth.cc(271): pid=93059 :2013/01/29 13:36:30| negotiate_kerberos_auth: INFO: Starting version 3.0.4sq 2013/01/29 13:36:30| negotiate_wrapper: Return 'TT TlRMTVNTUAACAAAACAAIADgAAAAVgoniY4vxELxfaaEAAAAAAAAAAG4AbgBAAAAABgEAAAAAAA9NAEQAUABUAAIACABNAEQAUABUAAEADABTAFEAVQBJAEQAMgAEABwAdABlAGwAZQBjAG8AbQAuAGcAbwB2AC4AcwBrAAMAKgBzAHEAdQBpAGQAMgAuAHQAZQBsAGUAYwBvAG0ALgBnAG8AdgAuAHMAawAAAAAA ' 2013/01/29 13:36:30| negotiate_wrapper: Got 'KK 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' from squid (length: 571). 2013/01/29 13:36:30| negotiate_wrapper: Decode 'TlRMTVNTUAADAAAAGAAYAHwAAAAGAQYBlAAAAAgACABYAAAAEAAQAGAAAAAMAAwAcAAAABAAEACaAQAAFYKI4gYBsR0AAAAPgUvYFXzvBnilZfvLSfLzUE0ARABQAFQAdQB6AGkAdgBhAHQAZQBsAE8AUABJAFMATgBCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAOVyvgVb93T48t/OT6r29XQBAQAAAAAAAF/s0kMd/s0BRgY0Vi13cR0AAAAAAgAIAE0ARABQAFQAAQAMAFMAUQBVAEkARAAyAAQAHAB0AGUAbABlAGMAbwBtAC4AZwBvAHYALgBzAGsAAwAqAHMAcQB1AGkAZAAyAC4AdABlAGwAZQBjAG8AbQAuAGcAbwB2AC4AcwBrAAgAMAAwAAAAAAAAAAEAAAAAEAAAlgAoFHA9U+vb8UFwVQMvpx50bpEtKKqtZSzHIFFAsDkKABAAAAAAAAAAAAAAAAAAAAAAAAkAHABIAFQAVABQAC8AMQAwAC4AMQAuADgALgAzADEAAAAAAAAAAAD9G0LzjgxFX4gXbxAPqzuD' (decoded length: 426). 2013/01/29 13:36:30| negotiate_wrapper: received type 3 NTLM token 2013/01/29 13:36:30| negotiate_wrapper: Return 'NA = NT_STATUS_UNSUCCESSFUL I tried google, but I cannot resolve the problem. Please could you be so kind as far as to point me in the right direction? Thank you very much in advance. regards, lk