nfs permission denied on remote host not in NIS domain.

[jerry1]

I am trying to mount a directory via the
default /net/ path and get
a permission denied.

If I open the export to everyone then you can
cd to /net/host1/dir1.

If I add the hostname to the exports or even
in the netgroup as any combination FQHN, IP,
HOSTNAME. It does not let you cd to dir1.

/net/host1/dir1

Does anyone know how to fix this.

The client is a SUN the server is HP.
The SUN's here can cd to /net/host1/dir1 fine.

The only difference is the remote host is
not bound to our NIS domain. It is bound to
another NIS domain. It should still work
though. /etc/resolv.conf has search for DNS
domain of client so FQHN should not be needed.

I am looking for options to turn on for logging
rpc, nfs, etc.... requests.

[jerry1]

I get this error message in the mountd.log
on the nfs server when the client tries
to cd into the directory dir1 from above.

mountd: mount request from (anon) denied: Permission denied

[Ermin Borovac · Accepted solution]

You can turn on rpc.mountd debugging on the HP-UX box by sending it SIGUSR2

# kill -SIGUSR2

Now attempt the mount and check /var/adm/mountd.log. It will show you what source IP/hostname mount request is coming from. Make sure this IP/host is in your access list.

To turn off debugging of rpc.mountd simply send it SIGUSR2 again.

[Martin Brachtl]

Maybe You should check the name resolution from both sides. Try to check the consistency of NIS and DNS records too.

[jerry1]

Okay, I have debug turned on for rpc.mountd.
This is what I get back on the server for
the client trying to cd to dir1.

rpc.mountd: getclientsnames: cannot find name for host [166.18.31.250.2.96]

Is this IPv6 ??

I can lookup the hostname but not the IP
in nslookup. Seems there is no reverse
record.

[Rick Garland]

If no reverse lookup, how is the PTR record in DNS configured for this host? Is it FQDN or short?

Maybe make it both

[jerry1]

The quick fix was to put it in the
local /etc/host on the nfs server(s).
They are fixing the reverse DNS.

Thanks all.