How to disable authentication for participants - Need authentication only for moderator and not for participants

Hi,
We have recently installed jitsi meet in our server.
We want only one user to have moderator role and authentication to be enabled
only for moderator.
Other participants should be able to login without authentication.
Can somebody please help us how to achieve this? Are any changes required
in jitsi config file for this? Is there any way to designate a specific user as ‘moderator’
and others as ‘Participants’?
We are using external_API.js for loading jitsi meet in iframe. So need to handle this
in iframe as well.

Thanks.

Thank you emrah. I did the changes as suggested in link shared.

However, now I am seeing lot of error messages in browser console.

Firefox can’t establish a connection to the server at wss://meet.demo.live/colibri-ws/default-id/7983396b5c80b3d0/f1d782c9?pwd=5friu1i1df4s4ft11ll949gt2c.

022-02-23T16:11:05.133Z [modules/RTC/BridgeChannel.js] <_send>: Bridge Channel send: no opened channel.
[JitsiMeetJS.js] : UnhandledError: P2P mode disabled in the configuration Script: null Line: null Column: null StackTrace:

Is there any other setting that needs to be done?
Thanks for your help.

Are you sure it worked before changes?
If yes, check the doc again. There should be some missing steps or typo