### https://github.com/coturn/coturn/blob/master/examples/etc/turnserver.conf
 
listening-port=3478
tls-listening-port=5349
alt-listening-port=0
alt-tls-listening-port=0
 
min-port=50001
max-port=50256
 
use-auth-secret
static-auth-secret=
 
server-name=heins.info
 
realm=heins.info
 
user-quota=16
total-quota=1024
 
cert=fullchain.pem
pkey=privkey.pem
 
log-file=/var/log/turn.log
simple-log
 
no-software-attribute
no-multicast-peers
 
#denied-peer-ip=10.0.0.0-10.255.255.255
#denied-peer-ip=192.168.0.0-192.168.255.255
#denied-peer-ip=172.16.0.0-172.31.255.255
 
#allowed-peer-ip=192.168.1.1
 
pidfile=/var/run/prosody/turnserver.pid
 
no-tlsv1
no-tlsv1_1