Blogs

Last modified: January 30, 2014
  • ISC Board Members inducted into the Internet Hall of Fame

    ISC congratulates Board members Stephen Wolff and David Farber on their induction into the Internet Hall of Fame. Thank you for all you’ve done for ISC and the Internet! Internet Hall of Fame

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  • Hijacking DNS? Error? DDoS? What happened, and what you can do

    Last night, TechCrunch reported that LinkedIn and Fidelity.com faced an outage due to a DNS error. ISC staff and colleagues observed that the error was caused due to the changing of nameserver information at the registry; leading to DNS queries to be directed to nameservers that did not correctly answer those queries. Suzanne Woolf, ISC’s Director of Strategic Partnerships, points

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  • Thoughts on a Recent BIND Interop Issue

    Unexpected DNSSEC validation failures ISC was recently involved in the troubleshooting and diagnosis of a DNSSEC-validation interoperability issue between BIND 9 and PowerDNS, where BIND is acting as a recursive server, and PowerDNS is authoritative. The end result was that BIND marked the PowerDNS server as not supporting EDNS0. Since DNSSEC requires EDNS0 support, the PowerDNS server was no longer considered capable of

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  • ISC creates commercial subsidiary: DNSco

    Beijing, China – 9 April 2013. Internet Systems Consortium (ISC) announces the creation of its first commercial subsidiary, DNSco. DNSco combines a business view and full-service solution with ISC’s world-renowned technical excellence. For over 15 years ISC has been the world’s leading expert in DNS and related technologies such as DHCP. ISC employees are versed in every aspect of these

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  • Is Your Open DNS Resolver Part of a Criminal Conspiracy?

    It has been a very eventful week in the field of DNS operations. In addition to the BIND vulnerability disclosed by ISC this week, the DNS world has been buzzing with news about “the biggest Distributed Denial of Service attack to date”, directed against Spamhaus by parties critical of their decision to list Cyberbunker as a spam source. As an

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