- Idle Scanning and related IPID games, Fyodor
- The hping Idle Host Scan, Erik J. Kamerling
- Cryptography in OpenBSD: An Overview, de Raadt, Theo. Hallqvist, Niklas. Grabowski, Artur. Keromytis, Angelos D.. Provos, Niels. (contains information about the IP ID OpenBSD randomization).
- First public announce about the (now known as) idle-scan.
- A paper on pratical hping usage by don (at) whitehats.ca (local copy)
- An article about hping by Don Parker.
- A Spanish hping tutorial from certmx.
- A Russian article about IPID, hping, and related stuff.