Disabling RPC Portmapper Service

Rationale

By default, IGEL OS 12 runs the RPC portmapper service on port 111 (TCP and UDP) to help other hosts discover services such as CUPS, NFS, or SMB that it may be running.
Since these services are typically not required on most endpoints, you can safely stop the RPC portmapper service to reduce the attack surface.

Instructions

1. In Setup, go to System > System Customization > Custom Commands > Network.

2. Enter the following commands into the Final network command field to stop the RPC portmapper service:

   BASH

   systemctl stop rpcbind.socket
   systemctl stop rpcbind.service

3. Click Save.