NFS issue not able to write in nfsshare

linuxguy08 · 04-26-2013, 01:50 PM

i have NFS server running in Red Hat Enterprise Linux Server release 6.0 (Santiago)

my client is centos-6.3 ( server will be upgraded to centos -6.3 later)

these are mount points configured in server

cat /etc/exports
/stt2 *(rw,sync,no_root_squash,no_all_squash)
/stt3 *(rw,sync,no_root_squash,no_all_squash)
both stt2 and stt3 are in 755 permission

On the client side ,
stt-server2:/stt2 /stt2 nfs rsize=8192,wsize=8192,timeo=14,intr,sync
stt-server2:/stt3 /stt3 nfs rsize=8192,wsize=8192,timeo=14,intr,sync

i could mount from the client side but the issue is all fileand folders have user and group are nobody and i cam not able to create folder and files under stt2 and stt3

Can you pls advice me to resolve the issue?
Thanks

linuxguy08 · 04-26-2013, 01:52 PM

it says permission denied error

---------- Post added 04-26-13 at 01:53 PM ----------

I can able write as root user but not regular user. for regular user, it throws "Permission denied.."

chrism01 · 04-27-2013, 09:01 AM

NFS relies on matching the uid (not acct name) on both ends eg both must have uid=500.

lleb · 04-28-2013, 10:44 AM

as you are running CentOS 6.x you might want to drop NFSv3 and move to NFSv4. just a thought. you can also get around the uid= by changing to a set fsid=XXX

example:

Code:

[ray@centos ~]$ cat /etc/exports 
#
#	/etc/exports

#	NFS4
/exports *(rw,insecure,subtree_check,crossmnt,fsid=0)

#	NFSv3
/exports/centos/public *(rw,insecure,no_subtree_check,fsid=3010)
/exports/NFS_TV_Shows *(rw,insecure,no_subtree_check,fsid=3020)

this expect gives both NFSv3 and NFSv4 for my LAN. I have to continue with NFSv3 and use the insecure options due to having Apple OSx running in my LAN.

The clients use either autofs or fstab to mount as some of them are still not updated to the more current replacement for autofs.

here is the fstab entry from my RPi:

Code:

jackknife:/NFS_TV_Shows/    /home/pi/TV_Shows   nfs4   rsize=8192,wsize=8192,timeo=14,bg,intr  0 0
jackknife:/centos   /home/pi/Movies nfs4    rsize=8192,wsize=8192,timeo=14,bg,intr  0 0

Note the bg to put the mount process in the background so as not to slow the reboot/boot process down on the client. also note there is no sync option, this too can cause connection time issues. Last thing to note is that I mounted with nfs4 to improve performance.

linuxguy08 · 04-29-2013, 02:02 PM

I did change nfs4 instead of nfs in /etc/fstab of client but still says nobody

linuxguy08 · 04-30-2013, 02:08 PM

Finally , the issue is fixed by adding nfsvers=3 in fstab entry. Thanks for all the help!

lleb · 04-30-2013, 08:32 PM

yes that is because as i mentioned your exports is in NFSv3, not NFSv4.