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How DANE Strengthens Security for TLS, S/SMIME and Other Applications

The Domain Name System (DNS) offers ways to significantly strengthen the security of Internet applications via a new protocol called the DNS-based Authentication of Named Entities (DANE). One problem it helps to solve is how to easily find keys for end users and systems in a secure and scalable manner. It can also help to address well-known vulnerabilities in the public Certification Authority (CA) model. Applications today need to trust a large number of global CAs. more

IPv6 Security Myth #5: Privacy Addresses Fix Everything!

Internet Protocol addresses fill two unique roles. They are both identifiers and locators. They both tell us which interface is which (identity) and tell us how to find that interface (location), through routing. In the last myth, about network scanning, we focused mainly on threats to IPv6 addresses as locators. That is, how to locate IPv6 nodes for exploitation. Today's myth also deals with IPv6 addresses as identifiers. more

Study Finds Spammers Use P2P Harvesting to Spam Millions

A recent study conducted by Blue Security reports how Internet users can unknowingly expose their contacts' emails addresses to Spammers while sharing files, music, games and DVDs over Peer-to-Peer (P2P) networks. The study has uncovered hundreds of incidents where files containing email addresses were made accessible in P2P networks. more

Transition to IPv6 Address

Last month's column looked at the exhaustion of the IPv4 unallocated address pool and the state of preparedness in the Internet to grapple with this issue... There has been a considerable volume of discussion in various IPv6 and address policy forums across the world about how we should respond to this situation in terms of development of address distribution policies. Is it possible to devise address management policies that might both lessen some of the more harmful potential impacts of this forthcoming hiatus in IPv4 address supply, and also provide some impetus to industry to move in the originally intended direction to transition into an IPv6 network? more

Let’s Not Forget About Solar Flares

As the world becomes more and more reliant on electronics, it's worth a periodic reminder that a large solar flare could knock out much of the electronics on earth. Such an event would be devastating to the Internet, satellite broadband, and the many electronics we use in daily life. A solar flare is the result of periodic ejections of matter from the sun into space. Scientists still aren't entirely sure what causes solar flares, but they know that it's somehow related to shifts in the sun's magnetic field. more

UNESCO Director-General on Linguistic Diversity on the Internet: Main Challenges Are Technical

Today, Irina Bokova, Director-General of UNESCO has released a statement concerning the linguistic diversity on the Internet stating: "UNESCO's experience and the 2012 study of the use of internationalized domain names undertaken with EURid show that the main challenges are technical. Obstacles lie with Internet browsers that do not consistently support non-ASCII characters, with limited e-mail functionality, and with the lack of support of non-ASCII characters in popular applications, websites and mobile devices." more

Google CEO Discusses Future of the Web and Enterprise Computing

Eric Schmidt, CEO of Google, was interviewed at Gartner Symposium on the future of the Web and enterprise computing. Eric said to about 5000 CIOs attending the event, that Chinese will soon be a dominant language on the net and broadband connections will be so fast that various forms of media -- such as radio and TV -- will be blurred. more

Protecting the Internet: Certified Attachments and Reverse Firewalls?

In many respects the internet is going to hell in a hand basket. Spam, phishing, DNS poisoning, DDoS attacks, viruses, worms, and the like make the net a sick place. It is bad enough that bad folks are doing this. But it is worse that just about every user computer on the net offers a nice fertile place for such ill behavior to be secretly planted and operated as a zombie under the control of a distant and unknown zombie farmer. ...Some of us are coming to the converse point of view that the net is being endangered by the masses of ill-protected machines operated by users. more

Apple and IPv6 - Not Quite There Yet

It's Apple's Developers Conference time again, and in amongst the various announcements was week, in the "Platforms Status of the Union" presentation was the mention of Apples support of IPv6. Sebastien Marineau, Apple's VP of Core OS told the conference that as far as IPv4 addresses are concerned, exhaustion "is finally here", noting that this already started in 2011 in the Asia Pacific while in North America IPv4 address exhaustion is imminent. Sebastien noted that it's really important to support IPv6 in devices and applications these days... more

IPv6 Security Myth #10: Deploying IPv6 is Too Risky

After a quick break to catch our breath (and read all those IPv6 Security Resources), it's now time to look at our tenth and final IPv6 Security Myth. In many ways this myth is the most important myth to bust. Let's take a look at why... Myth: Deploying IPv6 Makes My Network Less Secure... I can hear you asking "But what about all those security challenges we identified in the other myths?" more

The Future of Home Networking: A Problem Statement

I'm a network engineer, and like many engineers I often gravitate to the big projects; large networks with problems of scale and complexity in my case. However, I also consider myself a student of Occam's razor and often quote Antoine de Saint-ExupĂ©ry: "perfection is reached not when there is nothing left to add, but when there is nothing left to take away." In this spirit of "less is more" I have recently become intrigued by the problems appearing in home networking. more

Examining Actual State of IPv6 Deployment

There have been quite a number of recent articles about various IPv6 issues. Thus the question: how far along is the actual IPv6 deployment? This is a quick-and-dirty survey that focuses mainly on the content provider side. What domains were surveyed? Alexa offers country depended TopSites listings. Domains listed are frequently visited by users from that country, not necessarily hosted there... more

Study Reports on Baseline of Global IPv6 Adoption

A new research on native IPv6 traffic across six large providers in North America and Europe suggest that despite fifteen years of IPv6 standards development, vendor releases and advocacy, only a small fraction of the Internet has adopted IPv6. "The slow rate of IPv6 adoption stems from equal parts of technical/design hurdles, lack of economic incentives and general dearth of IPv6 content." more

Two Stage Filtering for IPv6 Electronic Mail

I'm a guest at the MAAWG conference in San Francisco this week and several people have now mentioned to me the problem and the opportunity of anti-spam e-mail filtering for IPv6. Tomorrow is World IPv6 Day but since a bunch of the pieces have clicked together in my head I'll post this a day early. more

The Internet Infrastructure: Stability vs. Innovation

Stratton Sclavos of VeriSign distills the essence of the SiteFinder controversy in his CNet interview...There is a subtle but essential misunderstanding here. Innovation can and should happen in Internet infrastructure, but there are a handful of core elements that must remain open and radically simple if the Internet is to remain, well, the Internet. These include TCP/IP, SMTP, HTTP, BIND, BGP, and the DNS (especially the .com registry). Any change in these protocols should be very carefully vetted through a consensus-based process. more