Clarify Linux issues #426

Docs/Linux.md

@@ -9,10 +9,15 @@ If you'd like to run without the wine logging you can use this command instead `
 
 ## ClientSettings.json changes (required)
 
-Currently you need edit the default provided `YgoMaster/Data/ClientData/ClientSettings.json`
+Currently you need edit `YgoMaster/Data/ClientData/ClientSettings.json`
 
-- Change `{ProxyPort}` to `{BasePort}` in both the `"ServerUrl"` and `"ServerPollUrl"`.
-- If you're running PvP you may need to switch it back.
+Change `{ProxyPort}` to `{BasePort}` in both the `"ServerUrl"` and `"ServerPollUrl"`
+
+NOTE: The client doesn't want to connect on anything other than localhost which is the reason why `ProxyPort` exists. As the proxy isn't being used in this case you cannot use any IP other than localhost for `BaseIP`. The reason why the above change is required under Linux is because the HTTP proxy wasn't implemented properly and the HTTP listener is ignoring requests due to the `Host` address of the HTTP request not matching the HTTP listener's host name.
+
+NOTE: PvP currently doesn't work on Linux unless you run the `YgoMaster.exe` server on a Windows machine. If you do that then you will need to undo the changes to `"ServerUrl"` / `"ServerPollUrl"`.
+
+TODO: Fix either the HTTP proxy or the HTTP Listener to allow the connection through.
 
 ## Bugs