[rhelv6-list] NFS ID map?

[Bryan J Smith]

Oh man, you're kidding me?!

What is the purpose of Domain/Local-Realms then? Sigh ...
On Oct 22, 2013 3:45 PM, "Joshua Baker-LePain" <jlb17 at duke.edu> wrote:

> On Tue, 22 Oct 2013 at 12:35pm, Chris Adams wrote
>
>  Once upon a time, Joshua Baker-LePain <jlb17 at duke.edu> said:
>>
>>> Are you using Kerberos with NFSv4?  If not, then the numeric UIDs
>>> and GIDs still must match.  idmapd *will* map usernames for display
>>> purposes (i.e. what 'ls -l' sees), but the numeric IDs are still
>>> used for permissions. Clear as mud, ain't it?
>>>
>>
>> Oh, that may be why I've always been confused by the ID mapping (and
>> avoided it).  Now, I'm not using Kerberos, so it sounds like the ID
>> mapping won't actually help me with my problem.  <sigh>
>>
>> What's the point of ID mapping if it only maps them in some places?
>> That's terribly confusing.
>>
>
> Yes.  Yes it is.
>
>  stat() sees the numeric ID mapped (and chown()), but I guess open()
>> permission checks don't?
>>
>
> This (rather old) thread explains it better than I can:
>
> http://thread.gmane.org/gmane.**linux.nfsv4/7103/focus=7105<http://thread.gmane.org/gmane.linux.nfsv4/7103/focus=7105>
>
> --
> Joshua Baker-LePain
> QB3 Shared Cluster Sysadmin
> UCSF
>
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