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# 1  
Old 12-04-2009
Question nfs permission denied failure
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:

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

Client:
OS: Centos 5.3

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

DETAILS:

1. The various nfs daemons are running on the server:
Code:
[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:
Code:
[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:
Code:
[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):
Code:
[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:
Code:
[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 10.42.0.24
[root@directory-0 named]# ping fs00
PING fileprint-0.lab-0.agilulf.local (10.42.0.24) 56(84) bytes of data.
64 bytes from fileprint-0.lab-0.agilulf.local (10.42.0.24): icmp_seq=1 ttl=64 time=0.715 ms
64 bytes from fileprint-0.lab-0.agilulf.local (10.42.0.24): 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:
Code:
[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:
Code:
[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?
Last edited by texaganian; 12-04-2009 at 12:30 PM.. Reason: additional info
# 2  
Old 12-04-2009
Quote:
(the users on the clients will always be running as root):
That is your issue...
Remember? Unless you have configured it to do so, NFS is unavailable to root users...

---------- Post updated at 17:26 ---------- Previous update was at 17:21 ----------

And the syntax:
Code:
# mount -t nfs fs00:ESE /mnt/ESE

Are you sure it is not
Code:
# mount -t nfs fs00:/home/ESE /mnt/ESE

# 3  
Old 12-04-2009
Data
Quote:
Originally Posted by vbe
That is your issue...
Remember? Unless you have configured it to do so, NFS is unavailable to root users...
I guess I need a little more explanation.

I thought the reason for changing the owner and group for the directory to nfsnobody was so that when root got mapped to nfsnobody (because auto_squash has not been disabled) it would all work.
# 4  
Old 12-04-2009
Look at the addendum of my previous post...
# 5  
Old 12-04-2009
Quote:
Originally Posted by vbe
That is your issue...
Remember? Unless you have configured it to do so, NFS is unavailable to root users...

---------- Post updated at 17:26 ---------- Previous update was at 17:21 ----------

And the syntax:
Code:
# mount -t nfs fs00:ESE /mnt/ESE

Are you sure it is not
Code:
# mount -t nfs fs00:/home/ESE /mnt/ESE

/home is not exported. Only /home/ESE is exported. So I think the mount command is correct.

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

# 6  
Old 12-07-2009
Resolved. Doh!
I just foobarred the mount command (left out the leading slash) and my eyes were refusing to see it. Became obvious instantly when I finally remembered to tail /var/log/messages.

Doh!
 
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