What was upgraded via apt-get? If you don't have a nice handy list, you 
might be able to tell by taking a quick gander at the creation times of 
the files in /var/cache/apt/archives

Brian Bartholomew wrote:
> Main fileserver.  Runs Ubuntu 8.04 LTS.  Uptime 180 days.  Also runs
> samba joined to UFAD; this is a custom version of samba in
> /depot/samba-3.3.2, not the system samba.  Using the system Kerberos.
>
> Yesterday evening I did:
>
> 	apt-get update
> 	apt-get dist-upgrade
> 	reboot
>
> This morning, samba is not working, as experienced from Windows clients.
>
> The relevant error message seems to be in /depot/samba-3.3.2/var/log.wb-UFAD
>
> [2010/04/20 17:28:43,  2] libsmb/cliconnect.c:cli_session_setup_kerberos(617)
>   Doing kerberos session setup
> [2010/04/20 17:28:43,  1] libsmb/clikrb5.c:ads_krb5_mk_req(686)
>   ads_krb5_mk_req: krb5_get_credentials failed for UFDC04$@UFAD (Cannot resolve network address for KDC in requested realm)
> [2010/04/20 17:28:43,  1] libsmb/cliconnect.c:cli_session_setup_kerberos(624)
>   cli_session_setup_kerberos: spnego_gen_negTokenTarg failed: Cannot resolve network address for KDC in requested realm
>
> These things seem to work:
>
> 	kinit [log in to unmask]
> 	klist
> 	/depot/samba-3.3.2/bin/net ads join -U "CLAS-ADM-BB"
>
> The symptoms resemble this bug, but why would I suddenly start seeing them?
>
> 	https://bugs.launchpad.net/ubuntu/+source/samba/+bug/553342
>
> Things I've tried on the two versions:
>
> 	many restarts in various orders
> 	debugging flags -d 1, -d 10, -d 99
>
> 	# To reset state and logs between restarts
> 	find var -type f -print | xargs rm
>
> 	winbind separator = \\
> 	winbind separator = \
>
> 	recompile samba 3.3.2: no change
>
> 	install samba 3.5.2: Aborts at the net ads join
>
> Thoughts?
> 							Brian
>