IP Addressing

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Search Engine Optimization: Static IP vs. Dynamic IP Addresses

This is a hotly debated topic. Some Search Engine Optimizers (SEOs) claim that sites with a static IP address rank higher while other SEOs claim that shared hosting is just fine... that it would be stupid for search engines to penalize shared hosting since we are running out of IP addresses and so many sites are currently using name based hosting. ...I decided to run it through our statistical analysis engine to get the facts. Here is the methodology I used to answer this question. more»

Why Do We Care About Names and Numbers?

An article based on the most recent study for the European Commission on the Policy Implications of Convergence in the Field of Naming, Numbering and Addressing written by Joe McNamee and Tiina Satuli of Political Intelligence.

"With relation to the Internet and also IP addresses, the "scarcity" is more complicated: there are not only intellectual property issues with regards to domain names, but there is also an issue of managing the integrity of the system. For any naming or numbering system to work, it is essential that the names and addresses used cannot be confused with any other -- in other words, no one system can have two end-points with the same fully qualified number or name..." more»

Whither DNS?

The Domain Name System is often though of as an integral part of the Internet. Without it, how can you ever locate anything? Well, quite easily, thank you very much. DNS is used implicitly for many services, such as web browsing. It also includes explicit extensions for a few applications such as e-mail. (I'm talking here about DNS the system, not DNS the technology that can be re-purposed to things like ENUM.) But the most notable thing about DNS is its receding importance... more»

DNSSEC: Once More, With Feeling!

After looking at the state of DNSSEC in some detail a little over a year ago in 2006, I've been intending to come back to DNSSEC to see if anything has changed, for better or worse, in the intervening period... To recap, DNSSEC is an approach to adding some "security" into the DNS. The underlying motivation here is that the DNS represents a rather obvious gaping hole in the overall security picture of the Internet, although it is by no means the only rather significant vulnerability in the entire system. One of the more effective methods of a convert attack in this space is to attack at the level of the DNS by inserting fake responses in place of the actual DNS response. more»

Addressing the Future Internet

What economic and social factors are shaping our future needs and expectations for communications systems? This question was the theme of a joint National Science Foundation (NSF) and Organisation for Economic Co Operation and Development (OECD) workshop, held on the 31st January of this year. The approach taken for this workshop was to assemble a group of technologists, economists, industry, regulatory and political actors and ask each of them to consider a small set of specific questions related to a future Internet. Thankfully, this exercise was not just another search for the next "Killer App", nor a design exercise for IP version 7. It was a valuable opportunity to pause and reflect on some of the sins of omission in today's Internet and ask why, and reflect on some of the unintended consequences of the Internet and ask if they were truly unavoidable consequences... more»

The Geography of Internet Addressing

The ITU-T has proposed a new system of country-based IP address allocations which aims to satisfy a natural demand for self-determination by countries; however, the proposal also stands to realign the Internet's frontiers onto national boundaries, with consequences which are explored here. ...we do indeed see the Internet as a single entity, and we even speak of the Internet's architecture as if there was one designer who laid out a plan and supervised its construction. But despite all appearances, the Internet landscape is indeed made up of many separate networks... This article will explore these issues, particularly in light of recent proposals to introduce new mechanisms for IP address management, a prospect which could, over time, substantially alter both the geography of the Internet, and its essential characteristics as a single cohesive network. more»

DNS WHOIS: Barking Up the Wrong Tree

As the Internet has grown and matured, it has become obvious to everyone involved that the DNS Whois system, as it currently exists, is not a sustainable way to share contact information for resolving network problems. ICANN, in an attempt to save DNS Whois, has plunged head long into the process of developing new policies aimed at fixing it. While I respect all of the hard work that has gone into this process, the results thus far have only made it clearer that this system faces intractable problems. more»

Thoughts on IPv6 Day

Jeff Pulver proposed an interesting idea called IPv6 Day... In geeks term, we call this a 'flag day'. The last time we have a flag day was 1st Jan 1983 when Internet moved from NCP (Network Control Protocol) to IPv4. So why not do it for IPv6? more»

Could IP Addressing Benefit from the Introduction of Competitive Suppliers?

An article written by Paul Wilson, Director General of Asia Pacific Network Information Centre (APNIC), and Geoff Huston, Senior Internet Research Scientist at APNIC. "In recent months proposals have been made for the introduction of competition into the system of allocation of IP addresses. In particular, calls have been made for new IP address registries to be established which would compete with the existing Regional Internet address Registries (RIRs). Specific proposals have been made by Houlin Zhao of the ITU-T and by Milton Mueller of the Internet Governance Project, both of which propose that the ITU itself could establish such a registry group, operating as a collection of national registries." ...It would appear that part of the rationale for these proposals lies in the expectation that the introduction of competition would naturally lead to outcomes of "better" or "more efficient" services the address distribution function. This article is a commentary on this expectation, looking at the relationship between a competitive supply framework and the role of address distribution, and offering some perspective on the potential outcomes that may be associated with such a scenario for IP addresses, or indeed for network addresses in general. more»

Comments on an IP Address Trading Market

With IPv4 addresses becoming scarcer, there has been talk that a trading market will develop. The idea is that those holding addresses they do not really need will sell them for a profit. More alarming is that there have been a few articles about how the Regional Internet Registries (RIR) are contemplating creating such a market so that they can regulate it, conceding that it will happen anyway and taking the "if you can't be 'em, join 'em" attitude. This is all a bit disturbing. Maybe I'm naïve, but it's a little unclear to me how an unsanctioned trading market could really operate without the RIRs at least being aware... more»

How Did IPv6 Come About, Anyway?

This is a special two-part series article providing a distinct and critical perspective on Internet Protocol Version 6 (IPv6) and the underlying realities of its deployment. The first part gives a closer look at how IPv6 came about and the second part exposes the myths.

In January 1983, the Advanced Research Projects Agency Network (ARPANET) experienced a "flag day," and the Network Control Protocol, NCP, was turned off, and TCP/IP was turned on. Although there are, no doubt, some who would like to see a similar flag day where the world turns off its use of IPv4 and switches over to IPv6, such a scenario is a wild-eyed fantasy. Obviously, the Internet is now way too big for coordinated flag days. The transition of IPv6 into a mainstream deployed technology for the global Internet will take some years, and for many there is still a lingering doubt that it will happen at all. more»

Map of the Internet: The IPv4 Space of 2006

An intersecting representation of the IP Address space on a plane using a fractal mapping that preserves grouping... Section of the map also shows the blocks sold directly to corporations and governments in the 1990's before the RIRs took over allocation. more»

Address Policies

When does an experiment in networking technology become a public utility? Does it happen on a single date, or is it a more gradual process of incremental change? And at what point do you change that way in which resources are managed to admit a broader of public interests? And how are such interests to be expressed in the context of the network itself, in terms of the players, their motivation and the level of common interest in one network? While many may be of the view that this has already happened some years ago in the case of the Internet, when you take a global perspective many parts of the globe are only coming to appreciate the significant role of the Internet in the broader context of enablers of national wealth. more»

Blacklisting Under Wrong Assumptions

If you analyze the relay of spam- and malware-containing email circulating on the Internet purely through your mail server logs (running the Unix command "tail"), a large proportion seem to come from Asia Pacific hosts, especially those from mainland China. Therefore, many less-experienced systems administrators have simply blocked the access from subnets of Chinese or Asian origin, effectively destroying the fabric of the Internet -- messaging. If administrators took pains to analyze these supposedly Asian spam messages by analyzing the full Internet headers, they would have realized that the Asian servers were merely used by the real spammers as open relays, or perhaps as zombie hosts previously infected with the mass mailing worms through the exploitation of operating system vulnerabilities.  more»

ICANN Starts IPv6 Ball Rolling

IPv6 took a significant step forward this week with ICANN's decision to officially add the next generation protocol to its root server systems. The shift to IPv6 is perhaps the largest and most significant change to the structure of the Internet in decades - ICANN's move a signal that the revolution has officially begun. more»