[Samba] Users can't login any more

[Koenraad Lelong]

Hi,

I'm using samba for years now. Today I got complaints from some users 
they could not login any more.
The PC's they used where old Win98 PC's. Unfortunately I still have to 
support these. It worked fine for years, though. AFAIK nothing changed 
the last months. And since I do such changes I would know.
I have a virtual machine with XP. To do some tests, I made a snapshot 
just after joining the domain, nobody actually logged in at the domain 
yet. I tried with the machine in that state and when I try to log in I 
get the message the domain is not available.
I logged in as administrator on the local machine and there I tried to 
make a network connection. This does also not work.

On the Win98 machines I can go ahead after I get a message some network 
resources will not be available. When I then manually create a network 
connection, this works.

Where can I start to look ?
I'm using "Samba version 3.5.3-1.1-2362-SUSE-CODE11". I know it's a bit 
old. I'm going to see if I can find a newer one.

I scanned the network port, and all port concerning samba are open.
On a linux box, I can mount the shares. I did smbclient -L=server, and 
that shows all shares of the server.

I sniffed with wireshark, but I see no traffic when a user tries to log in.
What I see in /var/log/samba/smbd puzzles me (it's in Dutch) :

[2012/03/23 16:34:06.760408,  1] smbd/server.c:240(cleanup_timeout_fn)
   Cleaning up brl and lock database after unclean shutdown
[2012/03/23 16:40:28.222148,  1] smbd/server.c:267(remove_child_pid)
   Scheduled cleanup of brl and lock database after unclean shutdown
[2012/03/23 16:40:48.224409,  1] smbd/server.c:240(cleanup_timeout_fn)
   Cleaning up brl and lock database after unclean shutdown
[2012/03/23 16:55:01.362913,  0] 
lib/util_sock.c:1432(get_peer_addr_internal)
   getpeername failed. Error was Overdrachtseindpunt is niet verbonden
[2012/03/23 16:55:01.366608,  0] 
lib/util_sock.c:1432(get_peer_addr_internal)
   getpeername failed. Error was Overdrachtseindpunt is niet verbonden
[2012/03/23 16:55:44.453364,  1] smbd/server.c:267(remove_child_pid)
   Scheduled cleanup of brl and lock database after unclean shutdown
[2012/03/23 16:56:04.457068,  1] smbd/server.c:240(cleanup_timeout_fn)
   Cleaning up brl and lock database after unclean shutdown

I hope someone can give some hints where to look.

TIA

Koenraad Lelong

The global section of my smb.conf :

[global]
	workgroup = MY_DOMAIN
	server string = Samba on %L
	interfaces = eth0, lo, 192.168.0.1/20
	passdb backend = tdbsam
	pam password change = Yes
	passwd program = /usr/bin/passwd %u
	passwd chat = *New*Password* %n\n *Re-enter*new*password*%n\n 
*Password*changed*
	username map = /etc/samba/smbusers
	unix password sync = Yes
	lanman auth = Yes
	client lanman auth = Yes
	client plaintext auth = Yes
	log level = 3
	syslog = 0
	log file = /var/log/samba/%m
	max log size = 50
	name resolve order = wins bcast hosts
	time server = Yes
	deadtime = 15
	socket options =
	printcap name = CUPS
	mangle prefix = 5
	add user script = /usr/sbin/useradd -m -s /bin/false '%u'
	delete user script = /usr/sbin/userdel -r '%u'
	add group script = /usr/sbin/groupadd '%g' && getent group '%g'|awk -F: 
'{print $3}'
	delete group script = /usr/sbin/groupdel '%g'
	add user to group script = /usr/sbin/groupmod -A '%u' '%g'
	delete user from group script = /usr/sbin/groupmod -R '%u' '%g'
	set primary group script = /usr/sbin/usermod -g '%g' '%u'
	add machine script = /usr/sbin/useradd  -c Machine -d /var/lib/nobody 
-s /bin/false '%u'
	shutdown script = /var/lib/samba/scripts/shutdown.sh
	abort shutdown script = /sbin /shutdown -c
	logon script = scripts\%U.bat
	logon drive = F:
	logon home = \\server\%U
	domain logons = Yes
	os level = 65
	preferred master = Yes
	domain master = Yes
	wins support = Yes
	ldap ssl = no
	utmp = Yes
	create mask = 0664
	force create mode = 0660
	directory mask = 0777
	force directory mode = 0770
	map acl inherit = Yes
	cups options = Raw
	veto files = /*.nws/*.{*}/Thumbs.db/
	veto oplock files = /*.doc/*.xls/*.mdb/