Internet Systems Consortium

Rick Adams, Chair Richard L. Adams, Jr. is the founder of UUNET Technologies, the first commercial Internet Service Provider (ISP) and one of the largest Internet traffic carriers in the world in the 1990s.

A new configuration option, notify-cfg CDS, was added to BIND 9 in version 9.

In this post, we will show that BIND 9.20 compares favorably with 9.

In mid-2025 ISC contracted with OSTIF to identify an external organization to audit our Kea and Stork code for security issues.

During the first week of February (2026), I ran several experiments using Claude Code.

Stork 2.4 is a new stable version, significantly updated in several key ways.

Dave Farber, ISC Board Member from 1994 – 2026

ISC’s staff members and board are proud to participate in many governance bodies and community initiatives.

This post is a joint response to the European Open Digital Ecosystem Strategy Call for Evidence, from CZ.

ISC has a long history of contributing to, and implementing, open community standards.

2025 Summary BIND 9 remains a very functional, reliable, and well-supported option for a self-hosted DNS system.

Tomek Mrugalski, Director of DHCP Development, leads the combined Stork, Kea, and DHCP team.

In addition to verifying the integrity of your zone data, the DNSSEC chain of trust can also be used to associate other information with your domain, such as PGP keys, to help improve the security of applications.

We have done quite a few of these profiles now, but fortunately we have not yet run out of staff members!

Computers are great, but sometimes it’s nice to go “old-school” with some handwritten messages.

BIND 9.20 is well established and stable. This is a good time to look at the performance of BIND 9.

Most video recordings are also available on our YouTube channel. To be notified of upcoming webinars, follow ISC on Mastodon, LinkedIn, Facebook, or Bluesky, or subscribe to the training-info mailing list.

Internet Systems Consortium Statement of Privacy Effective date: 11 September 2025

Ondřej Surý gave this talk at RIPE 91: SLIDES, RECORDING

Last week, ICANN published a report on the importance of open source in the DNS.

It’s time to meet another of ISC’s engineers! This time, let’s get to know Włodek Wencel, our DHCP Quality Assurance Manager.

Is your DNS or DHCP implementation consistent with best practices? Find out with a configuration review from ISC.

Are you thinking of using ISC’s software? Sure, we think it’s great, but don’t just take our word for it; see why our existing customers and supporters use and support ISC’s software!

If you suspect you have found a vulnerability in BIND 9, Kea DHCP, Stork, or ISC DHCP, or if you wish to inquire about a vulnerability that you have learned about which has not yet been publicly announced, ISC encourages you to take one or more of the following actions, as appropriate:

One software vulnerability can enable a successful denial of service attack, disabling critical network services.

Protect your network, your data, and your business. Cyber criminals target software vulnerabilities.

Thank you for your interest! ISC has a long history of finding the best people to focus their talents and passions on the mission of supporting the infrastructure of the Internet.

ISC is excited to announce the release of Kea 3.0.0! This is a major release, and is the first Long-Term Support (LTS) version of Kea.

All of our staff profiles so far have been of our engineers, who are of course very important and make up the majority of ISC.

Fred Baker, ISC Board Member from 1994 – 2025