Port Match: Learn Common Ports the Fast Way
How it works
Pick a deck. Each round gives you 8 ports in 90 seconds, asked both ways: port to protocol and protocol to port. The Security+ deck asks for the secure replacement instead (Telnet out, SSH in). Get one wrong and it comes back a few questions later in the same round, so you see it again while it is fresh. The clock pauses while you read each explanation. Keys 1 to 4 pick an answer.
Telnet sends your password across the network in plain text. Honestly? I respect the transparency. Learn port 23 anyway, so you know which one to close. — Nyx
Play
Keep studying
- Common ports cheat sheet — every port in this game on one page
- Network+ practice test
- Security+ practice test
- Put It In Order — sequences the exams love
- Log Hunt — spot the attack in a log
- Flashcards — acronyms with spaced repetition
- Mnemonic Lab — memory phrases for every ordered list
- Binary & Hex — speed drills and subnet masks
Your best scores are saved only in this browser on this device (no account, no cookies, no tracking). Clear your browser storage to reset them. Written by StashGrid with AI help and checked against the sources listed for each fact. StashGrid isn’t affiliated with CompTIA or NIST. Spotted an error? Tell us and we’ll fix it.