0: log file opened: /var/log/turn_13666_2021-01-29.log
0: 
RFC 3489/5389/5766/5780/6062/6156 STUN/TURN Server
Version Citrix-3.2.4.1 'Marshal West'
0: 
Max number of open files/sockets allowed for this process: 4096
0: 
Due to the open files/sockets limitation,
max supported number of TURN Sessions possible is: 2000 (approximately)
0: 

==== Show him the instruments, Practical Frost: ====

0: TLS supported
0: DTLS supported
0: Redis is not supported
0: PostgreSQL is not supported
0: MySQL supported
0: OpenSSL compile-time version 0x100020bf: fresh enough
0: Default Net Engine version: 3 (UDP thread per CPU core)

=====================================================

0: Config file found: /etc/turnserver/turnserver.conf
0: Listener address to use: 158.106.137.107
0: Config file found: /etc/turnserver/turnserver.conf
0: Config file found: /etc/turnserver/turnuserdb.conf
0: 
CONFIG ERROR: -a and -z options cannot be used together.