Zuerst musst du den TS Server mit "./ts3server_linux_amd64 createinifile=1" starten.
Wenn du das gemacht und die ts3server.ini bearbeitet hast musst du nur noch in die Datei "ts3server_startscript.sh" folgendes eintragen "COMMANDLINE_PARAMETERS="inifile=ts3server.ini".
Vielleicht hilft dir auch das hier weiter: Teamspeak 3 - netcup Wiki.
Grüße
Sollte dir eigentlich weiterhelfen:
If you had that license sent to a Gmail account, try to view it in the web interface, copy everything (Ctrl-A, Ctrl-C) from there and paste it into a new file. Save this file as licensekey.dat, copy it to your server folder and restart your TS3 server. Did the trick for me.
Otherwise, you can try the following: Open the (broken) licensekey.dat with notepad, cut everything from there, and paste it here. This is an online base64 decoder. Click on run, copy the whole result, and paste it into a new file. Save that one, put it into your Teamspeak Server folder and call it licensekey.dat. Restart your server and hope it worked.
