Blogs

  • Partial EDNS compliance hampers deployment of new DNS features

    We at ISC want to encourage networking people around the Internet to focus attention for a few minutes on an obscure topic, EDNS compliance. EDNS is currently supported on better than 90% of all DNS servers ISC surveyed recently (research report). The percentage of DNS servers on the Internet that support EDNS drops significantly from 90% with some support, to 60 - 85% when you look at full compliance. As we add more applications that rely on EDNS, partial compliance can end up resulting in failures with increasingly significant impact. We cannot deploy DNS Cookies today without...

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  • Decommissioning the DLV

    The ISC DLV Registry has been available since 2006, and ISC has been happy to provide the service. However, due to the great progress that native DNSSEC has made, we have decided that it is time to wind down the project. If you have a zone already in DLV that could validate properly to the Root, we'd like you to remove it from DLV. In 2016, we plan to stop accepting zones that could validate to the Root, and will remove from the DLV any zones that already do. We will remove all records from DLV in...

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  • Refinements to EDNS fallback behavior can cause different outcomes in Recursive Servers

    Recursive DNS Servers administrators have for many years been advised to ensure that both the servers that they are running and the network environments wherein those servers reside are RFC-compliant. This is to ensure the best possible outcome when handling client queries. While some older DNS implementations and/or mis-configured servers still fail to adhere to current standards, there are two

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  • ISC Network Operations Report for 2014

    ISC’s Public Benefit network services are: F-Root; SNS-PB, a subsidized anycasted DNS infrastructure for non-profits; Hosted@, subsidized hosting for non-profit projects at our Redwood City location; a municipal network connecting a number of local cities and non-profits to the Internet, and dlv.isc.org, a DNSSEC Look-Aside Validation service.   Network Infrastructure We maintain approximately 2768 peering sessions across our infrastructure, more if you count

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  • ISC Retrospective on 2014 Open Source work

    Most of our work at ISC falls into one of two major project categories: open source development and network services. We will review our 2014 accomplishments in network services in a separate post. In 2014 we did a solid job of maintaining our primary open source projects, BIND 9 and ISC DHCP.  We fixed more bugs in 2014 than were discovered or reported in 2014

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Last modified: January 30, 2014 at 4:20 pm