Hello!

I have set up the most simple nfs-server configuration (I can imagine) and it shows funny behaviour:

Facts which seem relevant to me in this context:
0. I'm running on Fedora Core 1 (somewhat outdated, but well)
1. My nfs-server gets the IP via DHCP from a DSL Router via wireless lan. (192.168.1.11)
Its name "Vigor11" seems to come from the Router also because I configured it nowhere.
2. The /etc/exports looks like this:

"/misc *(rw)"

rpcinfo -p yields:
<snip>
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100024 1 udp 32768 status
100024 1 tcp 32770 status
391002 2 tcp 32771 sgi_fam
100011 1 udp 616 rquotad
100011 2 udp 616 rquotad
100011 1 tcp 619 rquotad
100011 2 tcp 619 rquotad
100003 2 udp 2049 nfs
100003 3 udp 2049 nfs
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100021 1 udp 32807 nlockmgr
100021 3 udp 32807 nlockmgr
100021 4 udp 32807 nlockmgr
100021 1 tcp 32788 nlockmgr
100021 3 tcp 32788 nlockmgr
100021 4 tcp 32788 nlockmgr
100005 1 udp 634 mountd
100005 1 tcp 637 mountd
100005 2 udp 634 mountd
100005 2 tcp 637 mountd
100005 3 udp 634 mountd
100005 3 tcp 637 mountd
</snip>

4. exportfs yields:
"/misc <world>"

5. My /etc/hosts file looks like this (I currently work with IPs exclusively - if I get this
to work I will start using names):
"127.0.0.1 localhost.localdomain localhost"


Observations:
1. When I boot the server it takes several minutes to start the NFS-service (but it works!)
2. Directly after boot-up I get these lines regarding nfs in /var/log/messages:

<snip>
Mar 26 22:45:52 Vigor11 nfs: rpc.mountd shutdown failed
Mar 26 22:45:52 Vigor11 nfs: nfsd shutdown failed
Mar 26 22:45:52 Vigor11 nfs: rpc.rquotad shutdown failed
Mar 26 22:45:52 Vigor11 nfs: Shutting down NFS services: succeeded
Mar 26 22:45:52 Vigor11 exportfs[3122]: /etc/exports [1]: No 'sync' or 'async' option specified for export "*:/misc". Assuming default behaviour ('sync'). NOTE: this default has changed from previous versions
Mar 26 22:45:52 Vigor11 exportfs: exportfs: /etc/exports [1]: No 'sync' or 'async' option specified for export "*:/misc".
Mar 26 22:45:52 Vigor11 exportfs: Assuming default behaviour ('sync').
Mar 26 22:45:52 Vigor11 exportfs: NOTE: this default has changed from previous versions
Mar 26 22:47:12 Vigor11 kernel: Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
Mar 26 22:47:12 Vigor11 nfs: Starting NFS services: succeeded
Mar 26 22:47:13 Vigor11 nfs: rpc.rquotad startup succeeded
Mar 26 22:47:13 Vigor11 nfs: rpc.nfsd startup succeeded
Mar 26 22:47:13 Vigor11 nfs: rpc.mountd startup succeeded
</snip>

This tells me that I probably should not do "nfs REstart" but "nfs start" in /etc/rc.d/rc.local but nothing more...

3. When I su and do this on the server itself :

-- mount 192.168.1.11:/misc tmp/

it takes long (almost a minute) but it works

If I try to mount the same share from a client now I get a
"mount: RPC: Timed out"

4. When I do then (on the server)

-- umount tmp/

It again takes quite a while and I get this:

"Bad UMNT PBC: RPC: Timed out"

but the mount is gone! (so far so good)

5. When I try to remount (on the server) the same way as in 3. I get after apropriate waiting time again a

"RPC: RPC Timed out"

If I restart the nfs-server (takes long but works) I can mount the share again on the client or on the server but only on one machine at a time.

Grateful for advice!

Tassilo

Seems I solved this one...

The hangup was gone after I added lines for client and server to my /etc/hosts file and restarted nfs. Obviously a name-resolution thing. (Not that I really understand it - so anyone with an explanation is welcome to advise me).

Graf, i noticed you have solved this problem. I'm also facing this issue, would you please tell me how you solved it ? Thanks

Regards
Daniel

Hi Daniel,

did you check that the lines I mentioned in my fix for /etc/hosts are present in yours? (For server and client vice versa)
That was pretty much all I did and then it worked. Good luck!

Tassilo

Graf, yes in the server and client , i have /etc/hosts file and inside has 127.0.0.1 localhost.localdomain xxx localhost. also i put /etc/hosts.allow for the server hostname and ip. Correct ? Could you pls step by step list out what have you done ? Just want to reconfirm. Thanks alot.

Regards
Daniel