topic Re: NFS export files in Operating System - HP-UX

NFS export files

Yaroki — Mon, 19 Nov 2012 03:08:00 GMT

Hello,

I'm using HP-UX b.11.11 an try to mount remote files via NFS.

My /etc/exports (host-server) file:

/ssc -anon=65534

/tmp 8.10.4.77/24(rw)

I can only access to the /ssc directory.

When I try to access /tmp it gives "permission denied" message.

I ran

#nsquery hosts CLIENT_NAME

and the results are fine. Also the /etc/hosts includes the ip and the correct name.

the mount point directory has 777 permission.

Please advice.

Yali

P.S. This thread has been moved from Workstations - Itanium-Based, hp9000, Visualize to HP-UX > networking - HP Forums Moderator

Re: NFS export files

Matti_Kurkela — Sun, 18 Nov 2012 22:31:54 GMT

The second line in your /etc/exports is not properly formatted to HP-UX 11.11 requirements. It looks more like Linux /etc/exports syntax. This is probably why the line is ignored by HP-UX.

If you want to give read/write access to /tmp to only the hosts in the 8.10.4.xx segment, the proper HP-UX 11.11 syntax would be:

/tmp -access=@8.10.4.0/24

Please read "man 4 exports" for more details.

Re: NFS export files

Yaroki — Tue, 20 Nov 2012 11:49:56 GMT

Thank for the reply Matti.

I red man 4 exports and create the correct syntax as you recommended.

Still the mount can be performed.

Messages received:

nfs mount: getaddr_nfs: server1: NFS service not responding(retry delay=5s)

nfs mount: retry: retrying(1) for: /server1 after 5 seconds

nfs mount: retry: giving uo on: /server1

BR,

Yali

Re: NFS export files

V. Nyga — Tue, 20 Nov 2012 15:11:56 GMT

Hi,

can you show us the new file?

Also:
- nfs service must run at the 'server' (is it linux ox hp-ux? which nfs version?)
- directory must be exported at the server

V.

Re: NFS export files

Matti_Kurkela — Wed, 21 Nov 2012 08:29:05 GMT

Any changes to /etc/exports will only take effect after you run "exportfs -a" on the NFS server host or restart the NFS server processes. Did you do this?

The first step of basic NFS connectivity troubleshooting would be running "rpcinfo -p" on the NFS server host, then going to the NFS client host and running "rpcinfo -p <NFS server host name>". Both outputs should be about the same and contain no error messages. This confirms that the rpcbind/portmapper service is working on the NFS server host and accessible from the NFS client host.

As far as I understand, the NFS file locking and reboot recovery protocols rely on hostnames, so it is not enough that the client host can resolve the server's IP address when given its hostname: both the client and the server must also be able to resolve each other's hostnames quickly and reliably when given the IP address only (= reverse lookup).

Re: NFS export files

Yaroki — Wed, 21 Nov 2012 09:45:07 GMT

Hello,

As I mentioned I'm running HP-UX B.11.11

I am export all my entries after editing /etc/exports with # exportfs -a. I even see that on the client side by #showmount -e <nfs server HOST_NAME>

# rcp -p on both sides give no error message. Should I attach the outputs?

Both client and server resolve the IP address quickly when giving the hostname (I used #ping <hostname> for both the client and the server) .

#ps -ef | grep nfs SERVER

gives

/usr/sbin/nfsd (many times)

nfsktcp

nfskd

#ps -ef | grep nfs CLIENT

gives

/usr/sbin/nfsd (many times)

nfskd

Two more things:

1. Now I can mount nothing via nfs

2. # netstat | grep nfs gives

tcp 0 0 server1.1021 ednop.nfsd ESTABLISHED

status only on both sides.

I can mount to this machine (ednop) as well from my client

Yali

Re: NFS export files

V. Nyga — Wed, 21 Nov 2012 10:28:58 GMT

>I am export all my entries after editing /etc/exports
>Now I can mount nothing via nfs
It seems like /etc/exports was edited wrong.
Please show us the content of the file.

V.

Re: NFS export files

Yaroki — Wed, 21 Nov 2012 10:55:06 GMT

Please find the exports content file:

/scc -anon=65534
/tmp -access=@8.12.4.0/24
/var -anon=@8.12.4.0/24
/

Re: NFS export files

Yaroki — Wed, 21 Nov 2012 10:56:46 GMT

And of course many thanks :)

Re: NFS export files

V. Nyga — Wed, 21 Nov 2012 11:35:53 GMT

I would suggest to test this content first:

/scc -anon=65534
/tmp -anon=65534
/var -anon=65534

Re: NFS export files

Yaroki — Wed, 21 Nov 2012 11:57:33 GMT

Despite showmount -e shows:

/var (everyone)

/scc (everyone)

/tmp (everyone)

Its not working...

This is the commend I use to the mount.

#mount 8.12.4.135:/tmp /server1

Is it concern to the shell I'm working with?

Should I check any config file?

Yali

Re: NFS export files

Dave Olker — Wed, 21 Nov 2012 15:41:58 GMT

Let's establish that you can get basic NFS working before we start playing with syntax. On the 11.11 NFS server use the following lines in /etc/exports:

/var

/tmp

/scc

Then issue the commands:

# exportfs -uav

# exportfs -av

# cat /etc/xtab

The xtab file shows what the kernel thinks is exported/shared for NFS clients to access. Once you verify that all three filesystems are exported with no options, try mounting the /tmp filesystem from one of the clients. If that doesn't work then show a cut/paste of the NFS server from the above commands and a cut/paste of the NFS client showing the failing mount command.

Dave

Re: NFS export files

Yaroki — Thu, 22 Nov 2012 07:38:02 GMT

Please find the attached files

Re: NFS export files

Dave Olker — Thu, 22 Nov 2012 13:41:01 GMT

Log into the client system and issue the command:

rpcinfo -p 8.12.4.135

Post the results.

Re: NFS export files

Yaroki — Thu, 22 Nov 2012 14:23:52 GMT

Please find the attached the output file.

Re: NFS export files

Dave Olker — Thu, 22 Nov 2012 14:51:12 GMT

The output shows the nfsds are either not running on the NFS server or they are not registered with rpcbind. Try the following commands and post the output:

/sbin/init,d/nfs.server stop

/sbin/init.d/nfs.server start

After the NFS server processes are restarted, see if the earlier rpcinfo command shows entries for the nfsds on the server.

Re: NFS export files

Yaroki — Tue, 27 Nov 2012 08:42:06 GMT

Unfortunately, restarting the service didn't help.

What's next?

Re: NFS export files

Matti_Kurkela — Tue, 27 Nov 2012 21:46:42 GMT

If /etc/rc.config.d/nfsconf specifies that the NFS server daemons are supposed to be disabled, running the "/sbin/init.d/nfs.server" script won't do anything at all.

Please attach your nfsconf file.

Also note that the HP-UX startup scripts read /etc/rc.config.d by executing /etc/rc.config, which reads *all* the files in /etc/rc.config.d directory (excluding only a few well-known backup file suffixes). If any of the files contain variables that have the same names as the variables in the nfsconf file, *and* the filename sorts after "nfsconf" in basic US-ASCII alphanumeric sort order, then those variables will override the settings made in the nfsconf file.

Never leave any files like "nfsconf.old" or similar in /etc/rc.config.d. If you must keep the old version as a backup, move it to some other directory.

Re: NFS export files

Yaroki — Wed, 12 Dec 2012 07:25:52 GMT

Hello,

Sorry for the delay.

Please find the attached nfsconf file.

I do not have any backup file that was saved with .old or similar in /etc/rc.config.d.

(In order to attach the file I've changed the its suffix to .txt)

Thanks,

Yali