Port Forward / Firewall
Last update: August 30, 2023
Server behind router🔗︎
If you're running a server at home for example and you have a local network that has internet connectivity through a router, you have to forward the SDS port so it's accessible from the outside.
For example, if your server has ip address 192.168.1.10, you have to open your router settings page, go to port forward and add a rule for port 18081. Every router configuration page is different but you should be looking for something like this:
After adding the rule, find your external ip:
Next, open a test listening port on your linux server:
Check your port conectivity on a site like PortChecker .
Enter your external ip address and port 18081, it should say that port is OPEN.
You can now close nc with Ctrl + C
If firewall is enabled🔗︎
To check if your firewall is active, type:
If you see Status: Inactive, skip this.
If you see Status: active, open the following port with: