Internet Systems Consortium

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

Kea 2.6 reached the end of maintenance with the release of Kea 3.

ISC is a Small Business open source software provider; we author and maintain BIND 9, ISC DHCP, and Kea DHCP, essential software that handles DNS and DHCP functionality across the Internet.

These are a few of the DNS-related tools, websites, and books we have heard of.

In the continuing series of profiles of some of our staff members, let’s get to know Jason Lasky, our Senior Account Manager!

ISC is excited to announce the release of Kea 3.2.0, a new stable version!

ISC has an OpenPGP key. OpenPGP is a public key system, which means that if you have our public key and we sign a mail message (or a software distribution) using our private key, you can have a reasonable confidence level that the message or distribution really did come from us.

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:

Per our longstanding release plan for BIND 9, after four and a half years, BIND 9.

Stork 2.5 is a new development version, provided for testing and evaluation.

These are a few of the DHCP-related tools, websites, and books we have heard of.

These are a few of the Kea- and IPv6-related tools, websites, and books we have heard of.

Ondřej Surý gave a talk at the RIPE 92 conference in Edinburgh in May, on “How many DNS queries does it take to resolve one name?

Petr Špaček gave a talk at the RIPE 92 conference in Edinburgh in May, on the impact of Large Language Models on security bug reporting to open source projects.

Plan for more frequent BIND security updates, at least for the remainder of 2026.

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:

At ISC, we sincerely value the contributions of our users, and security researchers, who analyze and probe our software for vulnerabilities.

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.

In the past, we’ve profiled some of ISC’s software and support engineers, and even our product manager.

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.

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.