[Samba] SID mapping: Samba and SSSD

Robert Marcano robert at marcanoonline.com
Thu Sep 3 20:39:59 UTC 2020

On 9/3/20 1:04 PM, Johan Hattne via samba wrote:
> Dear all;
> Would anybody be able to tell me what the idmap configuration is to have 
> Samba do the same SID-to-user/group mapping as the SSSD defaults?  I was 
> convinced I saw it on this list or the wiki not too long ago, but I 
> cannot seem to find it.
> // Best wishes; Johan

# getent group "domain users at ad.yourdomain.com"

That group id - 513 is the start, and that start + 200000 (default slice 
size) is the end.

The add:

idmap config YOURDOMAIN : range = start-end
idmap config YOURDOMAIN : backend = rid

or try the sss idmapper, but if you are removing sssd and want to 
continue using the sssd range, use the rid backed

Note: This works with any Samba release, even the latest ones.

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