RIPE NCC has Approximately Four Million IPv4 Addresses Before Reaching Last /8 — RIPE Network Coordination Centre

Looks like next month we will possibly see RIPE start tapping into the last /8 IPv4 addresses. When that happens they’ll only hand out a /22 (1,024 addresses) even if you can legitimately request more. Also, you’ll have to already have an IPv6 allocation before they’ll give you that /22.

Future Internet growth depends on IPv6 deployment.

Full Story – RIPE NCC has Approximately Four Million IPv4 Addresses Before Reaching Last /8.

Nmap Network Scanning Review

Nmap Network Scanning by Fyodor
Title: The long winded title for this book is Nmap Network Scanning: The Official Nmap Project Guide to Network Discovery and Security Scanning, but I’ll just be calling it NNS.
Author: Gordon “Fyodor” Lyon
Rating: *****
Bottom Line: The definitive nmap book, for all your network scanning needs.

From the moment you start to read NNS, it is engaging and informative. The wealth of information contained in this book will have even hardcore nmap experts learning a thing or two about the preeminent network scanner. Of course, I expected nothing less from NNS because the author is nmap’s chief architect and programmer, Fyodor. Inside you’ll find his 11 years of network scanning experience distilled down into the ultimate nmap guide.

The material is presented in an engaging way, and wherever possible examples are given where the techniques described are applied in real world scenarios. The book is also littered with command line and output examples as well as diagrams. These items in addition to the text allow one to enjoy and learn from the book without having to sit in front of a command line and try every single command yourself. That said, it took me a bit of time to get through the book because I kept stopping to play with new options I’d learned. 🙂

From introductory network scanning (What’s a stealth SYN scan?), to scan optimization (Why is it taking so long?!), to advanced techniques (Learn how to write your own nmap plug ins!), NNS covers the gamut. Anyone who does even occasional network scanning with nmap (And you are scanning your network on a regular basis aren’t you?) owes it to themselves to pick this one up.


Transatlantic Cables Terminated in Avon NJ

Transatlantic Cables Terminated in Avon NJ

I couldn’t resist this juxtaposition. These cables are VSNL submarine telecommunications cables that cross the Atlantic and come above ground in the VSNL building in Avon, NJ. They are capable of carrying over an estimated 3.5 Tbps (that is terabits per second). Probably less from over head and my guess from the article’s figure (60,000,000 simultaneous voice calls = 60,000,000 DS0s = 60,000,000 * 64kb/s). In any case, those cables are extremely important for international communication but they look like utterly unimportant buried utility cable. Just a great photograph. Via Wired.