Install stun-server by entering the following commands in the terminal:
sudo apt update sudo apt install stun-server
Description:
Server daemon for STUN
The STUN protocol (Simple Traversal of UDP through NATs) is described in the IETF RFC 3489, available at http://www.ietf.org/rfc/rfc3489.txt. It's used to help clients behind NAT to tunnel incoming calls through. This server is the counterpart to help the client identify the NAT and have it open the proper ports for it. . This package installs only the server part
Homepage: http://sourceforge.net/projects/stun/
Version: 0.97~dfsg-2.1build1
Section: universe/net