From: Neil Brown <neilb@cse.unsw.edu.au>
Subject: RE: NFS server replacement troubles
Date: Fri, 11 Oct 2002 16:22:21 +1000
Sender: nfs-admin@lists.sourceforge.net
Message-ID: <15782.28189.428534.680498@notabene.cse.unsw.edu.au>
References: <3FF929A3082ED211B9D700A0C9CFDC8801428E3B@exchange.bestivr.com>
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Cc: nfs@lists.sourceforge.net
To: tswaine@prosodiemail.com
In-Reply-To: message from tswaine@prosodiemail.com on Wednesday October 9
Errors-To: nfs-admin@lists.sourceforge.net

On Wednesday October 9, tswaine@prosodiemail.com wrote:
> Thanks Neil but I looked at that also. My exports file looks like
> this....
> 
> /somedir (rw)
> 
> Allowing anyone to connect. Also my hosts.allow is...
> 
> ALL: ALL
> 
> Allowing everyone also. Right after the new box comes online 
> and fails(when it worked with a different hostname). Something
> gets corrupted in nfs. No matter what I do, nfs will not work.
> I have tried replacing binaries ( rpc.* )with no avail.
> 
> Could it be stale clients that were not unmounted before the switch?

No.  It doesn't look at all like a client problem.

The error message all strongly indicate trouble talking to portmap,
which is why I suspected tcpwrappers...  Maybe portmap has
died... maybe  running strace on portmap will show something...

NeilBrown

> 
> Thanks....
> 
> -----Original Message-----
> From: Neil Brown [mailto:neilb@cse.unsw.edu.au]
> Sent: Wednesday, October 09, 2002 5:38 AM
> To: tswaine@prosodiemail.com
> Cc: nfs@lists.sourceforge.net
> Subject: Re: [NFS] NFS server replacement troubles
> 
> 
> On Tuesday October 8, tswaine@prosodiemail.com wrote:
> > I currently have a SCO NFS server, however I'm replacing it with Redhat
> > Linux.
> > I have taking down the box replaced it and NFS fails. The hostname, ip,
> etc.
> > is 
> > the same on the new machine.
> > New box info....
> > 	Stock Redhat Linux 6.2
> > 	kernel 2.2.14-6.0.1 on i686
> > 	partition being exported is Reiser filesystem
> > 
> > Before new box was put in to production its hostname was different.
> > Exporting was fine, NFS worked properly, however as soon as box
> > is brought up under new name NFS fails, errors(see below ).
> > 
> > Snapshot of errors.......
> > 
> > Starting portmapper: [  OK  ]
> > master:/var/lib/nfs 23# /etc/rc.d/init.d/nfs start
> > Starting NFS quotas: Cannot register service: RPC: Unable to receive;
> errno
> > = Connection refused
> > [FAILED]
> > Starting NFS mountd: Cannot register service: RPC: Unable to receive;
> errno
> > = Connection refused
> 
> At a guess, I would say tcpwrappers problem.  Maybe you have to old
> host-name in /etc/hosts.allow, or something like that??
> 
> NeilBrown
> 
> > mountd: unable to register (mountd, 1, udp).
> > [FAILED]
> > Starting NFS daemon: nfssvc: Connection refused
> > [FAILED]
> > Starting NFS services:  [  OK  ]
> > 
> > 
> > I have restarted portmapper and nfs with no success, unmount nfs on all
> > connected machines, still no workee....
> > Any help would be appreciated...
> > Thanks.
> > 
> > 
> > Troy L. Swaine
> > System Administrator / Engineer
> > 
> > 
> > 
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