[Samba] Migration Samba3 -> Samba4: Accessing domain member server is not working

Roel van Meer roel at 1afa.com
Thu Jul 9 13:00:07 UTC 2015

Roland Schwingel writes:


> So the problem is appearing here:
> [2015/07/06 08:02:47.188335,  0] ../source3/auth/auth_domain.c: 
> 302(domain_client_validate)
>   domain_client_validate: unable to validate password for user roland in  
> domain MYDOM to Domain controller PDCHOST. Error was  
> Why on earth is this happening? When my win7 testmachine is trying
> to access the 4.2.2 PDC directly everything is fine and easy. So I believe  
> the setup of the PDC is correct.

Hi Roland,

I had the exact same error, although my setup differed slightly. I tested  
different versions of Samba, and in my case the problem happened only with  
4.2.[0-2]. Samba 4.1.13 does not have the problem, and a build from Git  
master doesn't have it either.

So, you might want to try Samba 4.1.19 or wait for Samba 4.2.3.

Hope this helps,


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