Blogs

Last modified: January 30, 2014
  • Cache poisoning gets a second wind from RRL? Probably not.

    You may have heard recently that Response Rate Limiting (RRL) has re-opened the door on cache poisoning attacks (see CVE-2013-5661). ISC acknowledges that RRL can increase the effectiveness of cache poisoning attacks and appreciates the detailed research that uncovered it.  This is, however, only one piece in the larger context of competing security concerns, and each operator will need to

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  • ISC adds DDoS defense module to BIND software

    Internet Systems Consortium (ISC) announces that the RRL module, currently the most effective defense against the use of DNS in Distributed Denial of Service attacks, is now part of the upcoming BIND release. A DNS DDoS attack works by forging queries that look like they came from the victim’s server, making it appear to be requesting a high volume of

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  • ISC Spins Off Its Security Business Unit

    Internet Systems Consortium (ISC) announces that it has sold its security-related assets to Farsight Security, Inc., (“Farsight”) a new company started by ISC founder, Paul Vixie. The DNSDB and SIE services developed by ISC over the past five years will now be provided by Farsight. “Paul Vixie has been the driving force in Internet security innovation at ISC for many

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  • 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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