some groups showing as nobody but others are correct

[J. Bruce Fields]

On Sat, Feb 09, 2008 at 10:42:14AM -0800, Robert Hoffman wrote:
> 
> Hi Folks,

> I'm a sysadmin for a k-12 school, I'm trying to using NIS with
> Kerberos with NFSv4 to do server side authentication.  I'm almost
> ready to role this out for the school, but am having one little hitch.
> When I mount and look at an NFSv4 file system, some groups show
> correctly and some are mapped to nobody.

Do they show correctly when you look at them on the server?

> I've tried to detect some
> rhyme or reason for the groups that work versus the groups that map to
> nobody, but can find no differences to distinguish them. 

A group by that name has to exist on both the client and server side.
If that's the case, then I'm not sure what the problem is.

Hm, I think there were problems (fixed in recent kernels) with groups
with large gid's (over 2^15 or over 2^31, I can't remember which).
There might be problem with long group names as well.

> Is this a known problem, or could I have a setup issue?  Any
> suggestions would be greatly appreciated, I've tried everything I
> could think of to get it to work.

> Bob
> 
> 
> 
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