Internet Systems Consortium

If you suspect you have found a vulnerability in BIND 9, Kea DHCP, Stork, or ISC DHCP, ISC encourages you to take one or more of the following actions, as appropriate:

If you suspect you have found a vulnerability in BIND 9, Kea DHCP, Stork, or ISC DHCP, 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.

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.

By now anyone who follows Internet security, and plenty of people who don’t, have read about the two critical PHP2Shell vulnerabilities published and patched on October 21st.

Stork 2.6 is a new stable version, suitable for production use.

This list includes products that provide a management interface for, or integration with, ISC open source software.

This Reporting Guide relates to the Code of Conduct we have adopted for public fora ISC controls, where the user and developer communities discuss our open source projects.

BIND Version 4: UC Berkeley and DEC The Berkeley Internet Name Domain (BIND) package was originally written in the early 1980s at the University of California at Berkeley as a graduate-student project, under a grant from the US Defense Advanced Research Projects Administration (DARPA).

Software from ISC ISC has developed several open source tools that our users and customers may find helpful.

A 2025/26 grant from the Nominet DNS Fund enabled ISC to purchase new computers for our ten-year-old Perflab performance test bed.

Kea Migration Assistant (KeaMA) tool The Kea Migration Assistant is a tool that will partially translate a working configuration for ISC DHCP to an equivalent configuration for Kea.

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.

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.

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

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.