I would like to find out if my TeamSpeak server is secure. I have a VPS that runs Ubuntu with Cyberpanel with TeamSpeak running in a docker container. I run websites also on this server. I am able to connect to my TeamSpeak via the IP address like (123.333.444.555) but no port. Is this secure or what should i do to secure it? Would it not be secure if people connecting didn’t specify a port like (123.333.444.555/9987)?