TeamSpeak3 Server at home

I was able to run a dockerized TS3 Server on my Turris Omnia. Now a friend of mine asked, if that isn’t a security issue, if people were able to reach it from WAN. Well I honestly have no clue, it needs to forward a certain Port (UDP).

So excuse this very generic question, but I do expect generic answers as well :slight_smile:

(I have no static IP or dyndns-Domain)