Configuring NFS under Linux for IPTABLES Control
This HOWTO document is part of the LinWiz tool kit, and describes how to set up NFS on your server in such a way that meaningful IPTABLES firewall rules can be applied to the system.
On a system that is up and running with the NFS service active, the ports used by the components of the service can be listed using the command "rpcinfo -p". The output will look something like this...
The link for this article located at Chris Lowth is no longer available.