By default Jitsi blocks multiple local ip adresses with the comment “jitsi-meet coturn relay disable config. Do not modify this line”. What is this good for? Sorry, just want to understand 
If the local IP blocks are enabled for TURN then it’s possible to access your local services through TURN even they are closed to Internet
Ah, ok! Makes totally sense! Thank you so much and “sorry” for asking
So there’s no need at all to keep them on a separate turn-server running nothing but turn?