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Server Tools

Tools / Networking & Diagnostics

Networking & Diagnostics

All free Networking & Diagnostics server tools, in one place. Plus curated recipes if you want a known-good starting point.

## tools

network/port-check

Game Server Port Checker

Test whether your server's TCP port is open and reachable from the public internet - any game. The fastest way to diagnose 'my friends can't join'.

> Check port

deeper guides

For game-side help (how mods work, command references, troubleshooting writeups), use the Networking & Diagnostics wiki.