[Samba] Samba 4.7.9 dbcheck error

Andrew Bartlett abartlet at samba.org
Mon Sep 24 17:33:44 UTC 2018

On Mon, 2018-09-24 at 13:51 +0200, Daniel Jordan via samba wrote:
> Hello list,
> I'm getting a weird error message regarding our file server when i
> run 
> dbcheck on my
> dc01 running Samba v4.7.9. The error only occurs on dc01, dc02 is
> fine, 
> the file server also
> works fine but I want to clean the database before doing the upgrade
> to 
> version 4.9
> dc01:~# samba-tool dbcheck --cross-ncs
> Checking 4503 objects
> SID S-1-5-21-3258148492-1502286889-3538134041-1601 for 
> CN=FS01,OU=Server,DC=xx,DC=xx,DC=xx conflicts with our current RID
> set 
> in CN=RID Set,CN=DC01,OU=Domain Controllers,DC=xx,DC=xx,DC=xx
> Please use --fix to fix these errors
> Checked 4503 objects (1 errors)
> Has any of you seen a error like this before and knows if it's save
> to 
> remove the entry? Don't want
> to remove the fileserver from my ad, as some of my users probably
> won't 
> be ok with that ;)
> Thanks in advance!

I'm more interested in how you created that file server, because it
should be really hard to make Samba break this way, unless we got the
dbcheck rule wrong.

As to what --fix does, it doesn't delete the file server, it just
advances the RID set to ensure you don't get a duplicate SID later in
the domain's life.

Andrew Bartlett
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba

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