[Samba] getent group is not working

steve steve at steve-ss.com
Wed Aug 27 13:30:24 MDT 2014

On Wed, 2014-08-27 at 15:06 -0400, Gregory Cushing wrote:
> Eduardo, to piggy back on Rowlands comment. I have only seen gid's/uid's
> require an id if they are using the below id map. Using a rid idmap I have
> never had to set a gid/uid. One thing to note. The rfc2307 requires unix
> extentions to be installed. Then groups will need a gid within that.
>     idmap config *:range = 50000-60000
>     idmap config SIENIC:backend = ad
>     idmap config SIENIC:schema_mode = rfc2307
>     idmap config SIENIC:range = 10000-20000
> Eduardo, per my other email the rest is identical.
> Requires Unix Extensions to be installed in an AD environment. I can tell
> you this though assuming you had a working setup; otherwise in samba. IE
> local auth works and nsswitch/kerberos look great etc. then check the
> following.
> 1) Unix Extensions from what I have seen in samba are not enabled by
> default nor in normal AD.
> 2) When ever troubleshooting a getent translation issue there are a few
> things to check which you have not listed in this email
> There are 3-4 things that need to be setup to have getent working.
> 1) Confirm your nsswitch conf. Here it appears working.
> 2) Have you confirmed the pam winbind module is installed and pam is
> configured?
> 3) Have you done a wbinfo sid to id call to check that sid translation and
> uid translation is working? wbinfo's help or man page will give you the
> flags for this. You want to test sid and uid/guid resolution within winbind.
> 4) Check your id map to confirm the ID map is properly mapped.
> My initial suspicion is that you havnt properly configured your id map.
> I am known on irc.freenode.net #samba as ioudas.. and I am known for some
> winbind knowledge there. If you would like further help. Feel free to reply
> or let me know.

Sounds good to us. If you are totally and utterly bewildered and really
don't know what to try next, we also have the winbind or bust checklist:

J & S, Alicante

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