How can I disable a protocol?

I would like to disable certain protocols I don't use, so the server won't be listening to their ports.
Is it enough to put an empty port in config file?

<entry key='tk103.port'></entry>

No, remove the line.

The default.xml says in capitals "DO NOT MODIFY THIS FILE".
So, removing the line in traccar.xml will have no effect.

Remove it from default.xml.

Is there any performance benefit in disabling a protocol? Like less memory consumption?

Less resource usage - yes. Probably not a huge improvement.

Thank you.

Thank you.

For information, my benchmark in 2022:
Disabling all protocols but one (H02), reduce just 40MB of memory compared with all enabled protocols. And not see any impact in response times.

Thank you.