[Samba] Upgrading Samba

Gaiseric Vandal gaiseric.vandal at gmail.com
Mon May 24 15:00:21 MDT 2010

On 05/24/2010 04:46 PM, Steve Wolfe wrote:
> I have a fairly old Samba server, 3.0.25, on CentOS 4.8.  I'd like to update
> it to something more modern, so I grabbed the "Enterprise Samba" 3.5 RPMs
> for RHEL, and went to work on a test machine.
> After upgrading via "rpm -U ./*.rpm", starting nmbd and smbd, I can no
> longer log in to the domain, I get:
> netlogon_creds_server_check failed. Rejecting auth request from client
> FREESCALE machine account FREESCALE$
> While /etc/samba/smbpasswd remains seemingly untouched from the upgrade, I
> have to delete and recreate each account before it will let me log in to the
> domain.
> Since there are about a hundred workstations (and more accounts), I'd like
> to make this a more seamless transition... any tips for a newb?

I am guessing that smbpasswd is not in the TDB format supported by Samba 
3.5.    I think the older format got dropped along the way.

Are the user accounts OK?  You could prob use "pdbedit -w" (from the old 
version)  to dump the  accounts to a text file.   And then maybe write a 
script (perl has a nice split command) to parse the file into a list of 
machine names.  And then run something like
     for i in `cat thelist.txt` do
     smbpasswd -x $i
     smbpaswd -m -a $i

The other option may be to use pdbedit  to dump the passwd to a text or 
TDB file, backup /etc/smbpasswd and then use pdbedit (to reimport the 

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