no DNS forward lookup

[Jeremy Curtis]

I have a network with a W2k DNS/DHCP and a linux development server.
I need to regularly anonymously nfs mount /u on my linux server onto
my development workstations. Most of the time this works fine but
occasionaly I get refused the mount request "no DNS forward lookup" in
/var/log/messages. The reason for this is that our W2k DNS server
remembers old DNS information. So that if I do host <ipaddress> on my
linux server I get 2 DNS names returned. The first DNS name is the
old one which is also mentioned in the error message. The second one
is the correct name.

While, what W2K appears to do is odd and in my opinion confusing, I
cannot see anything actually wrong with it. On the other hand I
cannot see why NFS does not check all the possible DNS names returned
rather than just the first.

I have no control over the W2K DNS/DHCP server, so I have to fix my
Linux server. Currently, I add an entry in /etc/hosts everytime an IP
address changes but I want a proper solution. And I think there are
2:-

1. make NFS look at all DNS names.
2. Stop NFS doing DNS lookups.

But I do not know how to do either.

I have seen a posting 2 years back that said that if you did not have
DNS names in /etc/exports then NFS would not do that. Well I do not
and it does!

===== /etc/exports =====
/home localhost(rw,no_root_squash) *(rw)
/ *(ro)
========================

Can anyone help me please? I have tried using RH 7.0 with 0.1.9.1-7
and RH 7.2 with 0.3.1-13

Many Thanks for any help
Jeremy