[CentOS] NFS mounts group name shows as nobody

Barbara Krasovec barbarak at arnes.si
Wed Sep 12 12:29:30 UTC 2012


Hello!

The same problem appeared on our system (but both user and group were 
shown as nobody), with same idmapd.conf configured on server and client 
machines, users are in central ldap etc.. It worked fine with nfsv3. 
Then we installed the kernel from elrepo repository (tried both 2.6.39 
and 3.0) and it now works.

Barbara

On 09/11/2012 06:16 PM, Ryan Palamara wrote:
> Does this explain why uid shows fine but not gid?
>
> Thank you,
>
> Ryan Palamara
> ZAIS Group, LLC
> 2 Bridge Avenue, Suite 322
> Red Bank, New Jersey 07701
> Phone: (732) 450-7444
> Ryan.palamara at zaisgroup.com
>
>
> -----Original Message-----
> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Akemi Yagi
> Sent: Tuesday, September 11, 2012 11:40 AM
> To: CentOS mailing list
> Subject: Re: [CentOS] NFS mounts group name shows as nobody
>
> On Tue, Sep 11, 2012 at 6:37 AM, Ryan Palamara <Ryan.Palamara at zaisgroup.com> wrote:
>> I am trying to find out why my group names are showing as nobody. I have a CentOS 6 system that is acting as a NFS server. I have some older fedora clients where the group name shows up fine, but newer CentOS 6 clients have the group name for NFS mounts show up as "nobody". The username shows up fine but the group name shows up as "nobody".
> This is a know issue (or a feature) with nfs4.
>
> https://access.redhat.com/kb/docs/DOC-49407
>
> Or some page that is more accessible:
>
> http://serverfault.com/questions/98741/files-mounted-over-nfsv4-are-owned-by-4294967294-uids-and-gids-match
>
> In short, "If the NFSv4 client and server domain names do not match, all the usernames will show up as nobody."
>
> Akemi
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