Transport & Ports
TCP vs UDP, essential port numbers, and local port scanning labs.
1. TCP vs UDP Explained
Reliable TCP vs fast UDP—and how each appears in firewalls and attacks.
15 min
+24 XP
2. Common Ports You Must Know
Memorize ports 22, 53, 80, 443, and other services every analyst recognizes instantly.
15 min
+24 XP
3. Lab — Port & Connection Check
Use ss and netcat to inventory listening ports and test connections on localhost.
25 min
+24 XP
4. Quiz — Transport & Ports
10-question quiz on TCP/UDP differences and common port numbers.
10 min
+24 XP