您需要在路由器中打开一个端口，该端口通向服务器正在侦听的端口。然后，您连接到您的公共IP。此IP可在 http://www.visaminip.se/ 上找到

You need to open a port in the router that leads to the one that the server is listening on. You then connect to your public IP. This ip can be found on http://www.visaminip.se/