Setup a NFSv4 Server
This document describes briefly how to setup an NFSv4 server and/or client.

Preparation:
Install nfs-utils
Make sure util-linux is updated
Add "load-module nfs" to /etc/sysconfig/modules

Server:

1. Add firewall rules:

# Allow NFS
add in-iface lo tcp dport 111 accept
add in-iface lo udp dport 111 accept
add in-iface eth1 tcp dport 111 accept
add in-iface eth1 udp dport 111 accept
add in-iface eth1 tcp dport 2049 accept
add in-iface eth1 udp dport 2049 accept

1. Edit /etc/exports and setup the shares as per man exports

/var/vmail	192.168.2.0/24(rw,no_subtree_check,no_root_squash,fsid=0)

1. Start services

service rpcbind start
chkconfig rpcbind on
service rpcidmapd start
chkconfig rpcidmapd on
service nfslock start
chkconfig nfslock on
service nfs start
chkconfig nfs on

Client:

1. Start services

service rpcbind start
chkconfig rpcbind on
service rpcidmapd start
chkconfig rpcidmapd on
service nfslock start
chkconfig nfslock on

Mount using...

mount -t nfs4 -o proto=tcp server:/ mnt_point

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