Chile NIC explains Great Firewall incident

Chile NIC has released a pretty detailed statement explaining what happened earlier this week, as networks in Chile started sending DNS queries to China, and getting unreliable -- Great Firewall of China style -- results.



There are still a lot of unanswered questions, the main one being, how exactly did this happen, but you can see some speculation here. I've asked Global Crossing for a comment, but have yet to hear back from them.



The statement is in Spanish, but here's a (not entirely reliable) Google Translation of it.



NS ABNORMAL BEHAVIOR OF 24/03/2010



On Wednesday, 24 March 2010, thanks to information provided by engineers VTR, Mauricio Vergara

DNS Manager. CL NIC Chile, announced through a mailing list run by operators

DNS-OARC, a strange anomaly involving the alteration of data in DNS responses from one of the

Servers Root Server "I" located in China which affected areas such as Facebook.com, Twitter.com and

Youtube.com.



1 .- The encountered problem continues?



As we learned through Autonomica / Netnod (Swedish Organization, root-server operators

? I?), They would shut down the connection on your node located in China, and as we have reviewed, we have

again detected abnormal behavior again.



2 .- Do you know which ISPs were affected?



According to what we can detect, at least in Chile were affected ISPs VTR, Telmex and some

others who use Global Crossing as its provider of international connections.



On a server NIC Chile operates in California, it could also detect this fact. However, it was not possible

determine through which Internet provider that traffic passed, whether through Network Solutions or

EQUINIX through.



3 .- What would explain that someone made a root server announcements from China to the rest of the world?



Consultation of the root servers are made to any of the 13 root servers located throughout the world;

these servers are identified by a letter from the? A? to? M?. The root server? I?, Like almost everything

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