[Samba] Re : Samba/Winbind slow with Active Directory (Hoogstraten, Ton)

John H Terpstra jht at samba.org
Mon Jun 4 13:16:38 GMT 2007

On Monday 04 June 2007 08:00, simo wrote:
> On Mon, 2007-06-04 at 14:11 +0200, Rodolphe A. wrote:
> > How many entries ?
> >
> > TDB Database is limited 250 users.
> No it is not limited to 250 users.
> The documentation states that usually for under 250 users installations
> TDB may be easier and give good results without going the LDAP way.
> 250 is just an arbitrary line draw in the sand to help in decision
> making, no hard limit in the code.

For the record: TDB works nicely at a site that had over 4000 entries in 2004. 
At that time less than 66% of users had been added. I did not hear of any 
complaints after initial installation was completed, so it is most probably 
still being used today.

The 250 user level was documented as a point at which most Windows networks 
end up being split across multiple segments. When this happens it is 
advisable to have at least one BDC on major network segments.  TDB is not an 
ideal solution for PDC/BDC configurations - for such installation the use of 
LDAP should be seriously considered.

- John T.
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