listening-ip=内网IP
relay-ip=内网IP
external-ip=公网IP
relay-threads=10
lt-cred-mech
realm=airsend
cert=/usr/local/etc/turn_server_cert.pem
pkey=/usr/local/etc/turn_server_pkey.pem
no-cli
mongo-userdb="mongodb://127.0.0.1:27017/airsend"