
I have three mandrake servers, one (NFS client) running 2.4.18-6mdk and the two other (NFS servers) 2.4.3-20mdksmp. The client has mounted one disk of each server.
After a powerfail in the building, where both servers resides, NFS mounting is impossible.
At first, both NFS servers slowed down it's services (mail and web)to do almost nothing, while trying to NFS-mount from the client. That seemed to be a DNS problem

, and is solved by entering the host-names to /etc/hosts on both servers and client.
After this, mounting returns immediately with an error "mount: PRC: Program not registred" (in danish) on the client and the /var/log/messages on the NFS-servers displays "portmap [xxxx] connect from xxx.xxx.xxx.xxx to getport(mountd
): request from unauthorized host".
As far as I can see /etc/hosts.allow on the NFS-server allows the client to mount.
Any clues?
Henrik