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Now offering Advance Security Notification for NSD and Unbound

Check out our new BIND DNSSEC Guide



Recent Contributor Highlights


Comcast made a major contribution to help support the 2014 development of the new Kea DHCP server.

Craigslist has made a significant contribution in support of our nonprofit mission, as part of their commitment to the Internet and Open Source.

Facebook, Inc., has made a contribution for 2014 to help support continued development of the Kea DHCP server.

JANET, the UK’s Research and Education Network, made a much-appreciated 2014 charitable donation to ISC.


These contributions, and others like them, support the maintenance of our free open-source software, improving the quality for all.



F Root

ISC has operated F-Root, one of the world’s thirteen root name servers, since 1994. We also provide secondary DNS hosting for 50 ccTLDs around the world.

F-Root is distributed using “anycast” technology with 57 operational locations carrying ~25% of all root name server traffic, and operating an average 16,000 queries per second.

We welcome inquiries from sites interested in hosting and sponsoring a new F Root node.  Read our Network Operations Report for 2014.

We have just added our newest F-root node, in Luanda, Angola, in February, 2015. We promoted our Amsterdam node to be our first Global node outside the US in early March. F-root nodes in Santiago, Chile and Rome, Italy have fresh new hardware.


Upcoming Events


DNS-OARC 1072 LH Amsterdam, Netherlands All Day, 09 May, 2015 - 10 May, 2015

RIPE 70 1072 LH Amsterdam, Netherlands All Day, 11 May, 2015 - 15 May, 2015

DNSSEC Technical Workshop Brussels, Belgium 8:30 AM - 5:30 PM, 11 May, 2015 - 13 May, 2015

DNSSEC Technical Workshop Chicago, United States 8:30 AM - 5:30 PM, 27 May, 2015 - 29 May, 2015

NANOG 64 San Francisco, United States All Day, 01 June, 2015 - 03 June, 2015

[Complete List]


Recent Posts

Most Recent DHCP Releases

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Most Recent BIND Releases

Wed, Feb 25, 2015
Wed, Feb 25, 2015

[Complete List]


Last modified: March 20, 2015 at 4:15 pm