NFS

[Charles Heselton]

On Fri, 20 Aug 2004 11:38:41 -0700, Taylor, ForrestX
<forrestx.taylor at intel.com> wrote:
> On Fri, 2004-08-20 at 11:28, Michael Sullivan wrote:
> > I have two PC's:  bullet.espersunited.com and baby.espersunited.com  I
> > would like to mount some of bullet's directories on baby.  I started the
> > NFS service on bullet and ran redhat-config-nfs.  I set up /backup on
> > bullet to be the directory exported and to only export it to
> > baby.espersunited.com .  bullet doesn't have a monitor hooked up to it;
> > I always access it through ssd.  I logged out of bullet and returned to
> > baby and issued the mount command:
> >
> > [root at baby root]# mount bullet.espersunited.com:/backup /backup/bullet
> > mount: RPC: Remote system error - No route to host
> >
> > I know there's a route to bullet because I just ssh'd over there.  I
> > thought maybe it was because the NFS daemon on baby wasn't running.  I
> > entered "service nfs start":
> >
> > [root at baby root]# service nfs start
> > Starting NFS services:                                     [  OK  ]
> > Starting NFS quotas: Cannot register service: RPC: Unable to receive;
> > errno = Connection refused
> 
> This is most likely a firewall issue.  Open up ports 111 (TCP & UDP),
> 2049 (TCP & UDP), and 4002 (UDP) on both machines.  If you firewall
> REJECTs these ports, remove those lines.
> 
> On the NFS server side, add this line to /etc/sysconfig/nfs:
> MOUNTD_PORT=4002
> 
> Restart nfs and iptables, and verify that it works.  Also, update the
> nfs-utils on both machines using up2date.
> 
> Forrest
> 
> 
> 
> 
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> 

I agree that this sounds like a firewall issue.  One other thing (that
you may have done but didn't mention) make sure you run 'exportfs -a'
on the server side.
-- 
Charlie Heselton
Network Security Engineer