[squid-users] Linux using kerberos works but squid won't

Hi list,

I want to use this brilliant software squid but do you know what I missing?

I have working AD authentication on my SLES11 system
- kinit -k -t HTTP.keytab HTTP/squid.fqdn.com works
- login via ssh works with pam_krb5
- joining to my domain also worked as a charm

At this stage I believe, I've set up krb5.conf correctly.

So I compiled Squid 3.1.0.13.
configure options:
'--prefix=/usr/local/squid-3.1'
'--enable-auth=basic,ntlm,negotiate'
'--enable-basic-auth-helpers=SMB getpwnam multi-domain-NTLM'
'--enable-ntlm-auth-helpers=smb_lm no_check'
'--enable-negotiate-auth-helpers=squid_kerb_auth'
 --with-squid=/install/squid-3.1.0.13
 --enable-ltdl-convenience

Next I inserted these lines into squid.conf
auth_param negotiate program squid_kerb_auth -d 99 -s HTTP/squid.fqdn.com
auth_param negotiate children 15
auth_param negotiate keep_alive on

Starting squid again worked fine, so didn't get any error at boot time and
-- ps -ef -- shows me

squid 28944 27915 0 12:51 pts/0 00:00:00 ./squid -N -d 20 -f
../etc/squid.conf
squid 28945 28944 0 12:51 ? 00:00:00 (squid_kerb_auth) -d 99 -s
HTTP/squid.fqdn.com
squid 28946 28944 0 12:51 ? 00:00:00 (squid_kerb_auth) -d 99 -s
HTTP/squid.fqdn.com

On my windows PC I configured proxy using manual setting to the FQDN of squid.

The result is - in cache.log I find
2009/08/24 12:58:13| squid_kerb_auth: Got 'YR YIIFzAYGKwYBBQUCoIIFwDCCBby ...
[...]
from squid (length: 1987).
2009/08/24 12:58:13| squid_kerb_auth: Decode 'YIIFzAYGKwYBBQ [...]
(decoded length: 1488)
2009/08/24 13:21:19| squid_kerb_auth: gss_accept_sec_context() failed:
Unspecified GSS failure. Minor code may provide more information. Key table
entry not found
2009/08/24 13:21:19| authenticateNegotiateHandleReply: Error validating user
via Negotiate. Error returned 'BH gss_accept_sec_context() failed: Unspecified
GSS failure. Minor code may provide more information. Key table entry not
found'

I created my HTTP.keytab as it was described somewhere.
Logged on windows DC - used ktpass and mapped the service principal to a
windows user. After that I copied this file to linux squid.

I also tried to configure in squid.conf to use squid_kerb_auth -s
HTTP/squid.fqdn.com_at_REALM

But this didn't work either.

I think there is something small missing but I can't figure it out.

Please can anybody help me?
I hope, my detailed explanation will help others too to configure their
systems.

With best regards
Andrew
Received on Mon Aug 24 2009 - 11:55:33 MDT