How to export a directory with NFS version 3

To start with modify the /etc/exports file on the NFS server with below entry

/nfs    192.168.0.*(rw,sync)

In the above example /nfs directory  will only be shared to clients in the 192.168.0.0/24 subnet, as denoted by the 192.168.0.*. The options within the share will be read-write (rw) and will only reply to requests after changes have been committed to stable storage (sync).

Start the necessary services in NFS server

Red Hat Enterprise Linux 6 and above

 # service rpcbind start 
 # chkconfig rpcbind on
 # service nfslock start
 # chkconfig nfslock on
 # service nfs start
 # chkconfig nfs on

Red Hat Enterprise Linux 5 and below

 # service portmap start
 # chkconfig portmap on
 # service nfslock start
 # chkconfig nfslock on
 # service nfs start
 # chkconfig nfs on

Start the necessary services on the NFS client.

Red Hat Enterprise Linux 6 and above

 # service rpcbind start
 # chkconfig rpcbind on
 # service nfslock start
 # chkconfig nfslock on

Red Hat Enterprise Linux 5 and below

 # service portmap start
 # chkconfig portmap on
 # service nfslock start
 # chkconfig nfslock on

Mount the NFS share on the NFS client, where <nfs server> is the IP address or hostname of the NFS server.

 # mount -t nfs <nfs server>:/nfs /mnt/nfs