Some clients can't see NFS after re-boot

Hello, I posted this to comp.unix.admin but I've had no response yet so
I thought I'd try here. The NFS server is Linux and so are some of the
clients so I think it applies.

Further info is that I can do an nslookup on the NFS server to a problem
client.

Also, a Solaris x86 box gives this error message

"NFS lookup failed for server sgnfs1: error 7 (RPC: Authentication
error)"

All the others just return no files when I do an "ls" on the NFS
directory.

Cheers.


Hi,

I apologize in advance for not finding FAQ's etc. My excuse is that I'm
a developer and not an administrator and I don't have time to read up on
this issue properly.

Our sys admin chap re-booted an NFS server on Friday and then went on
holiday for 2 weeks and is not contactable. We have about 10 UNIX
clients running different types of UNIX and some of them now can't see
the mounted directories.

I tried re-booting one of them but that didn't work - that's almost the
end of my sysadmin knowledge!

They can all ping the server and they can all see another nfs server.

The machines that work are -

3 Solaris boxes (various revs)
2 AIX boxes
1 HPUX 11 PARISC box

The ones that have a problem are
2 Linux boxes (2.4 and 2.3 kernels)
1 SCO Open Server Box
1 HPUX 11 Itanium (although rather oddly, this one's having a problem
with only one mount point from the same server - other mount points are
fine)
1 Unixware 7.11 box

There are a few others that I've not checked.

They all use an automounter.

The NFS server is a Red Hat Linux box running 2.4 kernel. There's
another similar NFS server that's working OK.

I logged into the server and had a look at /etc/exports but it doesn't
mention all the clients anyway. Just one of them infact. The others
appear to be other nfs servers and two machines in another office - I
thought you just listed the machines there but I only have a very basic
understanding.

I've not even used automount before so it might be something to do with
that for all I know - could it be a NIS problem if the automount list is
stored there? But our passwords are on NIS and they are working.

Any help appreciated.

Cheers

Peter

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