NFS Services Administrator's Guide (B.11.31.04) March 2009

1. Assign values to the variables, STATD_PORT and MOUNT_PORT, as follows:
STATD_PORT = port_number
MOUNTD_PORT = port_number
Where:
port_number The port number on which the daemon runs. It can be set to
any unique value between 1024 and 65536.
STATD_PORT The port on which the rpc.statd daemon runs.
MOUNTD_PORT The port on which the rpc.mountd daemon runs.
2. Activate the changes made to the/etc/default/nfs file by restarting the lock
manager and NFS server daemons as follows:
/sbin/init.d/nfs.server stop
/sbin/init.d/lockmgr stop
/sbin/init.d/lockmgr start
/sbin/init.d/nfs.server start
3. Configure the firewall based on the port numbers configured.
Sharing directories across a firewall using the NFSv4 protocol
NFSv4 is a single protocol that handles mounting, and locking operations for NFS
clients and servers. The NFSv4 protocol runs on port 2049, by default.
To override the default port number (2049) for the NFSv4 protocol, modify the port
number for the nfsd entry in the/etc/services file.
Configure the firewall based on the port number set.
Sharing directories across a firewall using the WebNFS Feature
The WebNFS service makes files in a directory available to clients using a public file
handle. The ability to use this predefined file handle reduces network traffic, by avoiding
the MOUNT protocol.
How WebNFS works
This section compares the process of communication between an NFS client and an
NFS server across LANs and WANs. Table 2-4 compares the NFS session across a LAN
with a WebNFS session across a WAN.
42 Configuring and Administering NFS Services