We are looking for an expert with experience in Kurento and setting up Turn settings in Kurento. We are using Kurento and have installed Coturn. We tried to set up Turn settings in Kurento's config here: etc/kurento/modules/kurento/WebRtcEndpoint.conf.ini .
Challenge we face is that stream continues to work even when Coturn is shut down. So the help we need is to fix config settings and ensure that stream doesn't work when Coturn is off, but stream works when Coturn is on. To replicate that a user is behind NAT, we run the following 2 commands:
sudo iptables -A OUTPUT -d serverIp -p UDP -j DROP
sudo iptables -A INPUT -s serverip -p UDP -j DROP