[MLUG] NFS all_squash

[David Filion]

David Filion wrote:
> I'm in the process of setting up and NFS server.  Simple enough, except 
> the all_squash isn't working. :-(
>
> Here is my export:
> /data/dev       
> 192.168.0.0/255.255.0.0(ro,sync,insecure,mp=/data/dev,no_subtree_check,all_squash,anonuid=30,anongid=8)
>
> On the client's fstab I have:
> 192.168.0.16:/data/dev  /nfs/dev        nfs     
> hard,intr,ro,noauto,rsize=8192,wsize=8192  0  0
>
>
> The export mounts with no problem but the uids are not getting remapped 
> to uid=30, gid=8.  An ls -l shows the files still coming across with 
> their original uid/gids.
>
> # ls -l
> -rw-rw-r--    1 10028 5011    497 2008-12-29 17:00 mirror.txt
> -rw-rw-r--    1 10001 5011    401 2008-02-08 10:50 mirror.txt.bak
>
> The server is an running an old OpenSuSE 10.1 (updating is not currently 
> an option) with nfs-utils-1.0.7-36.
> The clients is running OpenSuse 10.2. with nfs-utils-1.0.10-22.
>
> Any suggestions?
>
> David f.
>
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Just a quick follow up.  The user space NFS server does have uid/gid 
mapping abilities.  However the user space NFS server carries a 
performance hit that because of the kernel <--> user space traffic.  Not 
a big deal on a small setup, but on a web server cluster, ouch.

David f.