[Samba] Guest account not working after upgrade

[Woodcock, Steve]

I recently upgraded samba from samba-2.2.1a-4 to samba-2.2.7-2.7.2 on Red
Hat 7.2 and a guest share stopped working.

The share is defined as:

[test]
   comment = Test
   path = /test
   browseable = yes
   guest ok = yes
   guest account = intranet
   writable = yes

It looks like with the new version samba has started accessing the file
system as user nobody, which doesn't work.

This is my smb.conf global section:

[global]
   workgroup = IT
   server string = Samba Server
   printcap name = /etc/printcap
   load printers = yes
   printing = lprng
   log file = /var/log/samba/%m.log
   max log size = 0
   security = domain
   encrypt passwords = yes
   smb passwd file = /etc/samba/smbpasswd
   socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
   dns proxy = no

The shared directory is owned by intranet:

  [root at rhtest1 test]# ls -ld /test
  drwxr-xr-x    2 intranet intranet     1024 Mar 25 11:55 /test

I'm connecting to the share with a domain account, which is not in
/etc/passwd.

Here are log excerpts from the working and broken versions:

(works)

[2003/03/25 13:06:27, 1] smbd/service.c:make_connection(606)
  soitsw (10.20.10.158) connect to service test as user intranet (uid=507,
gid=511) (pid 17637)

(broken)

[2003/03/25 13:05:43, 1] smbd/service.c:make_connection(636)
  soitsw (10.20.10.158) connect to service test as user intranet (uid=99,
gid=99) (pid 17588)

As you can see, in the broken case samba has got the wrong uid/gid. Can
anyone help me find out what's causing this?

Regards, Steve Woodcock