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add port forwarding image

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      ServerSetup.md

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ServerSetup.md View File

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- <img src="a_ip_address_win.webp" width="500"/>
- Almost all routers have a feature called "port forwarding". You will want to navigate to that feature and create a port forwarding rule for the port that your server application is listening on, and the LAN IP address of the computer running the server application.
- Some routers, whether thru malice or incompetence, [make this a lot harder than it needs to be](https://beta.sequentialread.com/forwarding-port-443-on-centurylink-technicolor-c2100t-modem/).
- Screenshot of what this looks like on my router. Note that each router is different.
- <img src="port-forwarding.png" width="370"/>
- Last step, we need to test it. First, we need to know what your router's _Public_ IP address is. The easiest way to figure this out would be to use a service like https://www.whatismyip.com
- You may or may not be able to access your server right now by copy and pasting the public IP address into your browser's address bar. (And appending the appropriate port number, for example, 12.23.80.231:8080).
- Some routers do not properly handle this "route-to-the-public-version-of-myself" request. So to get a reliable test, you may have to ask someone on a different network to test it for you, turn on your VPN, use your mobile phone's 3G/4G/5G connection to test it, or in a pinch, try hitting it from a sketchy "free unblock me" style web proxy.


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