Three vectors were exploited in the recent DDoS attack against Spamhaus: 1) Amplification of DNS queries through the use of DNSSEC signed data; 2) Spoofed source addresses due to lack of ingress filtering (BCP-38) on originating networks; 3) Utilisation of multiple open DNS resolvers While. 1) is unavoidable simply due to the additional data that DNSSEC produces, and 2) "should" be practised as part of any provider's network configuration, it is 3) that requires "you and I" ensure that systems are adequately configured. more
There has been plenty of buzz and chatter on the Internet recently concerning a very large DDoS attack against CloudFlare, with coverage on their blog, the New York Times, and the BBC, among many others. While attacks of this nature are certainly nothing new, the scale of this attack was surprising, reported to hit 120Gbps. For a sense of scale, your average cable modem is only about 20Mbps, or about 0.016% of that bandwidth. more
How will the business of existing top-level domains (TLDs) be impacted by the new gTLDs? Someone asked me this simple question and I was very surprised to see that my online searches couldn't easily find many detailed articles or research related to that point. more
The 7th meeting of the UN Broadband Commission in Mexico City was again a good combination of announcements about new plans, results of previously undertaken activities, and views on the future of broadband. Very noticeable was the enthusiasm and acknowledgement of the impact of ICT, and of broadband in particular. In September 2012 the Commission launched its working group on gender equality. Research undertaken by the various members of the workgroup provided somewhat similar results. more
Culminating a year-long policy development process, ICANN today launched its new Blocking Usage Review Panel (BURP). The BURP provides long-needed oversight over services that block Internet traffic. "While everyone understands that national laws such as the U.S. CAN SPAM define what traffic is or is not elegible to block, legal processes can be slow and cumbersome," said a spokeswoman. "Since the Internet is global and traffic often traverses multiple countries, the array of different laws cause uncertainty." more
Yesterday Verisign sent ICANN a most interesting white paper called New gTLD Security and Stability Considerations. They also filed a copy with the SEC as an 8-K, a document that their stockholders should know about, It's worth reading the whole thing, but in short, their well-supported opinion is that the net isn't ready for all the new TLDs, and even if they were, ICANN's processes or lack thereof will cause other huge problems. more
If you haven't been reading the news of late, venerable anti-spam service Spamhaus has been the target of a sustained, record-setting Distributed Denial-of-Service (DDoS) attack over the past couple of weeks... Of course, bad guys are always mad at Spamhaus, and so they had a pretty robust set-up to begin with, but whoever was behind this attack was able to muster some huge resources, heretofore never seen in intensity, and it had some impact, on the Spamhaus website, and to a limited degree, on the behind-the-scenes services that Spamhaus uses to distribute their data to their customers. more
Last year there was a "threat" by anonymous group to black out Internet by using DNS Reflection/Amplification attack against the Internet DNS Root servers. I even wrote a little article about it: "End of the world/Internet". In the article I was questioning if this was even possible and what was needed as general interest and curiosity. Well, looking at the "stophaus" attack last week, we are getting some answers. more
For those of you interested in IPv6 and/or DNSSEC, we'll have a live webcast out of the Internet Society's ION Singapore conference happening tomorrow, March 28, 2013, starting at 2:00pm Singapore time. more
As attack vectors go, very few are as significant as obtaining the ability to insert bespoke code in to an application and have it automatically execute upon "inaccessible" backend systems. In the Web application arena, SQL Injection vulnerabilities are often the scariest threat that developers and system administrators come face to face with (albeit way too regularly). more
The results of an excellent study made, for reasons that will become clear, by an anonymous author reaches this conclusion... The problem is, to make the study, the author created a botnet - that is he wrote a small program that took advantage of insecure devices to enlist additional machines to help in the study. more
Well it is not new that the US has always maintained that the Internet should be a tax free zone as per the US Congress's Tax Freedom Act 1998 which following expiry continued to be reauthorized and its most recent re-authorization (legal speak for extension) was in October 2007 where this has been extended till 2014. It is unclear whether there will be another extension post 2014. There is a moratorium on new taxes on e-commerce, and the taxing of internet access via the Tax Freedom Act. more
Two approaches can be taken towards the development of Fiber to the Home (FttH). One is all about its commercial potential - the sale of the most awesome commercial applications in relation to video entertainment, gaming and TV. The other is a perhaps more sophisticated approach - from the perspective of social and economic development. Of course the two are not mutually exclusive. more
One of the good things about participating in the meetings of the UN Broadband Commission for Digital Development is seeing the amazing impact our industry has on the daily lives of literally billions of people. While everybody - including us - is talking about healthcare, education and the great applications that are becoming available in these sectors, the real revolution is taking place at a much lower level. more
Sender Address Validation and Authentication (SAVA) is the silver bullet. It will send to Cyberia all dark forces that make us shiver when we make a purchase on the internet, pose a threat to our very identities and have made DDoS a feared acronym. Some of you will remember the heated debates when Calling Line Identification (CLID) was first introduced in telephony. Libertarians of all stripes called passionately to ban such an evil tool... more
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