topic how to change which port numbers a service uses in Network and Storage Protocols

how to change which port numbers a service uses

mauro — Thu, 05 Jun 2025 05:59:31 GMT

From "man services":

The services file contains information mapping between

port numbers and service names. This file exists purely

for reference purposes and is not currently used by Data

ONTAP. Modifying entries in this file will have no effect

on the node. Removing entries will not disable ports or

services. For information on how to change which port

numbers a service uses (if possible), see the relevant

manual page for that service. Such changes will not

update the services file.

My customer asks to change port number for mountd,rquotad and lockd.

Many thanks.

Mauro.

sharmadevender — Thu, 27 Jun 2013 11:14:17 GMT

Hi,

If you need to change default ports, follow below mentioned procedure.

1.) Check for exising port used.

Filer1> options rpc

rpc.mountd.tcp.port 4046

rpc.mountd.udp.port 4046

2.) change port eg 5000 instead of 4046

Filer1> optons rpc.mountd.tcp.port "5000"

3.) check for changes.

Filer1> options rpc

Restart NFS service on Filer and keep in mind that new port must not be in used. These changes are persistent across reboots.

Hope it will help

mauro — Thu, 27 Jun 2013 13:08:23 GMT

many thanks.