Re: NFS and ownership

On 2007-02-11, Dan Espen <daneNO@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Handover Phist <jason@xxxxxxxxxxxxxxxxxxxxxx> writes:

On 2007-02-11, Uli Wachowitz <uli@xxxxxxxxxxxxxx> wrote:
On 2007-02-11, Handover Phist <jason@xxxxxxxxxxxxxxxxxxxxxx> wrote:
What I need to do, but dont know how yet, is to match uid and gid on and
The easiest way to do this is to use the options of 'useradd' and
'groupadd' to ensure that the IDs are the same on every machine.
Also take a look at 'usermod', 'goupmod' and related tools.

Also you might consider using 'ldap'. But this might be overkill. In
smaller nets the first mentioned method should be absolutely sufficient.

HTH
Uli

The first option, while possibly the best, presents this problem: Both
machines have been used by me for a few years now, and changing UID and
GID on either may conflict with existing [UG]IDs. Is there a way to map
this through NFS?

I find command run by root going the the filesystem
will fix all the UIDs and GIDs. Check the man page.

That's what our admins do for users that have left.

OK, so to synchronise the users on client and server, I used:

# usermod -u 1000 jason

which changed the UID to match the server. I remounted the NFS export
and still have ro perms instead of rw.

Exports entry (server):

/home/jason 192.168.1.0/24(sync,rw,no_root_squash)

fstab entry (client)(line wrap):

192.168.1.2:/home/jason /home/jason/server nfs
owner,rw,rsize=8192,wsize=8192,timeo=14

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