RE: nfs questions!!!

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hi david...

thanks for the reply.. your answer confirmed what i had started to think
about. and yeah, you're right regarding only a few boxes for a home use..
however, i'm probably going to have 10-15 boxes running this app... but if
the issue really boils down to the user/group id then i could essentially
create a user with the same uid/gid on all boxes, or i could simply only
allow files to be created and added to the nfs share by the machine that
created the share...

this whole process is for use in a Condor system, where each node will be
performing some of the distributed applications.

thanks

-bruce


-----Original Message-----
From: fedora-list-bounces@xxxxxxxxxx
[mailto:fedora-list-bounces@xxxxxxxxxx]On Behalf Of David G. Miller
Sent: Tuesday, August 01, 2006 6:12 AM
To: fedora-list@xxxxxxxxxx
Subject: Re: nfs questions!!!


 Tim <ignored_mailbox@xxxxxxxxxxxx> wrote:

> On Mon, 2006-07-31 at 13:48 -0400, Thom Paine wrote:
>
>>> Do you have a user with the same name and password on both hosts?
>>
>>
>
>That's not how NFS works.  You need to have the same user ID
>(numerical), and that's it.  The local box associates a user name and
>password with local users.
>
>i.e. user 500 is use 500 on both boxes (unless you remap user IDs across
>NFS).  It doesn't matter whether use 500 is john on one and fred on the
>other.  And the passwords aren't compared, either.
>
>If you've set boxes up so that you end up being user 500 on one of them,
>but 501 on another, you're different users on both.  You've either got
>to do some user ID remapping between boxes through NFS (I've no advice
>on how to do that to give you), or you change users on one of the boxes
>to match.
>
Actually, the preferred solution is to use NIS and have a single login
to network resources.  Using NIS allows the UIDs and GIDs to be
administered on a single box.  That being said, its somewhat overkill
for home users and just making sure the UIDs and GIDs are the same on a
couple of boxes isn't all that bad.

Cheers,
Dave

--
Politics, n. Strife of interests masquerading as a contest of principles.
-- Ambrose Bierce

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