A message for Linux.com registered users: We are in the process of making changes to the Linux forums. Starting Monday, 8/13/18 at 6:00 PM PT, you will be unable to access the forums. They will re-launch as soon as possible on Wednesday, 8/15/18 with new features and improved functionality. Thank you for your patience and stay tuned for the new improved forums.

December 5, 2009

problem with nfs permissions

I think I must be drain bamaged...

I'm just trying to export an NFS share and mount it on a client. Should be really easy but I'm failing!

Here's the set up:

OS: Centos 5.3
Name: fileprint-0 (aliases fp00, fs00)
Exported directory: /home/ESE

OS: Centos 5.3

mount: fs00:ESE failed, reason given by server: Permission denied


1. The various nfs daemons are running on the server:

[root@fileprint-0 ~]# service nfs status
rpc.mountd (pid 18040) is running...
nfsd (pid 18037 18036 18035 18034 18033 18032 18031 18030) is running...
rpc.rquotad (pid 18025) is running...

2. For the moment the firewall has been completely disabled on the server:

[root@fileprint-0 ~]# service iptables status
Firewall is stopped.

3. The directory has been added to /etc/exports, exportfs -ra has been run, and there are no entries in /etc/hosts.deny:

[root@fileprint-0 ~]# cat /etc/exports
/home/ESE *(ro,sync) #Site Engineer tools

4. Owner and group for the directory have been set to nsfbody (the users on the clients will always be running as root):

[root@fileprint-0 ~]# ls -dal /home/ESE
drwxr-xr-x 3 nfsnobody nfsnobody 4096 Dec 4 05:01 /home/ESE

5. The clients are able to resolve and ping the server as fs00:

[root@directory-0 named]# host fs00
fs00.lab-0.agilulf.local is an alias for fileprint-0.lab-0.agilulf.local.
fileprint-0.lab-0.agilulf.local has address
[root@directory-0 named]# ping fs00
PING fileprint-0.lab-0.agilulf.local ( 56(84) bytes of data.
64 bytes from fileprint-0.lab-0.agilulf.local ( icmp_seq=1 ttl=64 time=0.715 ms
64 bytes from fileprint-0.lab-0.agilulf.local ( icmp_seq=2 ttl=64 time=0.402 ms

--- fileprint-0.lab-0.agilulf.local ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1099ms
rtt min/avg/max/mdev = 0.402/0.558/0.715/0.158 ms

6. The local mount point on the client exists:

[root@directory-0 named]# ls -dal /mnt/ESE
drwxr-xr-x 2 root root 4096 Oct 27 16:04 /mnt/ESE

7. But attempts to mount the directory fail:

[root@directory-0 named]# mount -t nfs fs00:ESE /mnt/ESE
mount: fs00:ESE failed, reason given by server: Permission denied

8. I've tried setting no_squash but without any more success.

Anybody see what I am doing wrong?

Click Here!