Networks

TeleGeography’s Interactive Submarine Cable Map Is a Fun and Fascinating View Into Infrastructure

Ever want to know where all the submarine cables are that provide part of the physical infrastructure of the Internet? Or which cities in the world have the most connectivity via submarine cables? (or which regions might be single points of failure?) In doing some research I stumbled across this excellent site from the folks at TeleGeography... It is a very well done and captivating (to me, anyway) view into where all the current and planned submarine cables are located.

A Question of DNS Protocols

One of the most prominent denial of service attacks in recent months was one that occurred in March 2013 between Cloudflare and Spamhaus... How did the attackers generate such massive volumes of attack traffic? The answer lies in the Domain Name System (DNS). The attackers asked about domain names, and the DNS system answered. Something we all do all of the time of the Internet. So how can a conventional activity of translating a domain name into an IP address be turned into a massive attack?

China Closing the Door to New Technologies

2013 may be a promising year for global trade in technology with the kick-off of the International Technology Agreement expansion discussions, the Trans-Atlantic Trade and Investment Partnership, and as the Trade in Services Agreement gets going. But China calls its own tune, and is now threatening to restrict its market for Internet-enabled technologies through a clever device that could cost its trading partners billions.

The Internet: Missing the Light

Today's Internet is wonderful for solving hard problems such as connecting to Amazon to buy goods or for using Netflix. Amazon and Netflix, among others, demonstrate what is possible if you put in enough effort. Yet if we are to understand the Internet we need to look beyond those applications to the simplest application such as sending one bit of information from a light switch to a light fixture.

DNS, DNSSEC and Google’s Public DNS Service

For some time now we've been tracking the progress of the deployment of DNSSEC in the Internet. Its been a story of an evolution of the measurement technique... In the process we've learned perhaps more than we had wanted to about the behaviour of Flash engines, Apache web servers and FreeBSD system tuning, and also learned much more than we had anticipated about the finer details of Google's online ad presentation behaviour. But one thing we did not see in all of this was any large scale jumps in the level of client use of DNSSEC validation over this period at the start of the year.

Here’s Looking at You…

Much has been said in recent weeks about various forms of cyber spying. The United States has accused the Chinese of cyber espionage and stealing industrial secrets. A former contractor to the United States' NSA, Edward Snowden, has accused various US intelligence agencies of systematic examination of activity on various popular social network services... These days cloud services may be all the vogue, but there is also an emerging understanding that once your data heads into one of these clouds, then it's no longer necessarily entirely your data; it may have become somebody else's data too...

Name Collisions, Why Every Enterprise Should Care (Part 3 of 5)

Do you recall when you were a kid and you experienced for the first time an unnatural event where some other kid "stole" your name and their parents were now calling their child by your name, causing much confusion for all on the playground? And how this all made things even more complicated - or at least unnecessarily complex when you and that kid shared a classroom and teacher, or street, or coach and team, and just perhaps that kid even had the same surname as you, amplifying the issue! What you were experiencing was a naming collision (in meatspace).

Internet Infrastructure: Stability at the Core, Innovation at the Edge (Part 2 of 5)

For nearly all communications on today's Internet, domain names play a crucial role in providing stable navigation anchors for accessing information in a predictable and safe manner, irrespective of where you're located or the type of device or network connection you're using. Over the past 15 years hundreds of millions of domain names have been added to the Internet's Domain Name System (DNS), and well over two billion (that's Billion!) new users, some ~34 percent of the global population, have become connected.

Jugaad Innovation and Applications of DNSSEC

It would be one of the ironies of global technology development that the West has effectively so far followed a Jugaad principle of "good enough" innovation for DNS security, whereas India could well embrace all the latest advances in DNS security as its Internet economy grows. Like most other protocols from the early Internet, the DNS protocol was not designed with security built in. For those protocols, security services were typically either implemented at a different layer of the protocol stack, or were added on later.

Provoking National Boundaries on the Internet? A chilling thought…

The impact of the recently revealed US government data collection practices may go well beyond the privacy ramifications outlined in the Internet Society's statement: expect a chilling effect on global, resilient network architecture. As governments of other countries realize how much of their citizens' traffic flows through the US, whether or not it is destined for any user or service there, expect to see moves to curtail connections to and through the US.