Glossary: Network Attacks, Social Engineering and Indicators

source port

Also written: source ports, source port randomization

The port number a message is sent from. Floods from services' source ports reveal reflection, and randomizing DNS query source ports makes cache poisoning harder.

Where the book teaches it

Chapter 1: Network Attacks, Part 1
Chapter 2: Network Attacks, Part 2

Related terms

reflected attack cache poisoning