Versatile, classic, complete name server software

Why use BIND 9?

BIND 9 has evolved to be a very flexible, full-featured DNS system. Whatever your application is, BIND 9 probably has the required features.

BIND 9 is transparent open source, licensed under the MPL 2.0 license. Users are free to add functionality to BIND 9 and contribute back to the community through our open Gitlab.

BIND Uses on the Internet

Almost every Internet connection starts with a DNS lookup

Before your mail server sends an email, before your web browser displays a web page, there is a DNS lookup to resolve a DNS name to an IP address. Watch this DNS Fundamentals presentation from Eddy Winstead of ISC or read A Warm Welcome to DNS by Bert Hubert of PowerDNS.

BIND 9 on the Internet

BIND is used successfully for every application from publishing the (DNSSEC-signed) DNS root zone and many top-level domains, to hosting providers who publish very large zone files with many small zones, to enterprises with both internal (private) and external zones, to service providers with large resolver farms.

Minimum Re-load Time

Update your BIND 9 server zone files with the remote name daemon control (rndc) utility, without restarting BIND 9. For those times when you do have to restart, the ‘map’ zone file format can dramatically speed up reloading a large zone file into BIND 9, such as on restart.

DNSSEC with In-line Signing

BIND 9 fully supports DNSSEC and has a mature, full-featured, easy-to-use implementation. Once you have initially signed your zones, BIND 9 can automatically re-sign dynamically updated records with inline signing. BIND’s Key and Signing Policy utility will help you maintain your DNSSEC implementation, periodically updating keys and signatures according to the policy you establish.

Find out more here.