Hacker ApprovedDepartments

djbdns

Ranked 4 of 6 DNS servers by recommenders

Admins recommend it as a secure, fast DNS server that outperforms BIND in most respects. Main caveats: it no longer compiles on modern compilers and has had security bugs.

Admins recommend it as a secure, fast DNS server that outperforms BIND in most respects. Main caveats: it no longer compiles on modern compilers and has had security bugs.

10 people gave an opinion

recommend it
8
criticize it
2
approval share
80%
Each figure is one person. RecommendsCriticizes

Recommended in 6 of 13 months

  1. November 2025: not recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: recommended
  5. March 2026: recommended
  6. April 2026: recommended
  7. May 2026: recommended
  8. June 2026: not recommended
  9. July 2026: recommended
  10. August 2026: not recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 8 people recommend itNeeds 10 or more, not met.
  • 4 recommenders for every criticNeeds 2 to 1 or better, met.
  • Recommended in 6 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Long-term favorite of many admins

    “I've tried many DNS server software projects over that time and I always come back to djbdns”

    Comment from 25 Mar 2026 in “You Can Run a DNS Server”

    “we used alternatives such as djbdns”

    Comment from 1 Dec 2025 in “DNS Firewalling with MISP and Technitium DNS Server”
  • Secure design that made Internet safer

    “it did make the Internet a safer place for many years”

    Comment from 13 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”

    “perfect for admins who valued security over features”

    Comment from 13 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”
  • Modular, narrowly scoped design

    “the structure of these programs are direct ancestors to modern microservice architectures”

    Comment from 21 Feb 2026 in “DJB's Cryptographic Odyssey: From Code Hero to Standards Gadfly”

    “djbdns being narrow in scope is not necessarily a bad thing”

    Comment from 13 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”

What people warn about

Each mark is one comment

  • Doesn't compile on modern compilers

    “because of the C23 changes, djbdns doesn't even compile anymore”

    Comment from 9 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

    “unpatched djbdns no longer even compiles with a modern compiler”

    Comment from 8 Sep 2026 in “I've factored the RSA keys of a Certificate Authority from the 90s”
  • Has had security bugs

    “DjbDNS has had a few security bugs over the years (but not that many)”

    Comment from 12 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”

Other DNS servers people recommend

The four most recommended other DNS servers, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

djbdns compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
dnsmasq321174%10—Approved
BIND 917965%8——
PowerDNS150100%10—Approved
djbdnsThis page8280%6——
Technitium DNS Server7278%6——
See all 6 DNS servers, ranked

What people said

13 of the 14 comments that mention it, newest first. Each links to the original comment.

“unpatched djbdns no longer even compiles with a modern compiler”

CriticizesComment from 8 Sep 2026 in “I've factored the RSA keys of a Certificate Authority from the 90s”

“because of the C23 changes, djbdns doesn't even compile anymore”

CriticizesComment from 9 Jul 2026 in “OpenBSD has a use-after-free allowing local privilege escalation to root”

“this is surely a good way to do it”

RecommendsComment from 6 Jul 2026 in “DNSGlobe – Rust TUI to watch DNS propagate around the world”

“djbdns being narrow in scope is not necessarily a bad thing”

RecommendsComment from 13 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”

“perfect for admins who valued security over features”

RecommendsComment from 13 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”

“it did make the Internet a safer place for many years”

RecommendsComment from 13 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”

“DjbDNS has had a few security bugs over the years (but not that many)”

MixedComment from 12 May 2026 in “CERT is releasing six CVEs for serious security vulnerabilities in dnsmasq”

“qmail was a lot of fun, so was djbdns”

RecommendsComment from 14 Apr 2026 in “Someone Bought 30 WordPress Plugins and Planted a Backdoor in All of Them”

“I've tried many DNS server software projects over that time and I always come back to djbdns”

RecommendsComment from 25 Mar 2026 in “You Can Run a DNS Server”

“it ended up killing qmail, djbdns, etc stone dead”

CriticizesComment from 19 Mar 2026 in “Astral to Join OpenAI”

“the structure of these programs are direct ancestors to modern microservice architectures”

RecommendsComment from 21 Feb 2026 in “DJB's Cryptographic Odyssey: From Code Hero to Standards Gadfly”

“djbdns is a full blown DNS server which outperforms BIND in nearly all respects.”

RecommendsComment from 6 Dec 2025 in “Fefe is back”

“we used alternatives such as djbdns”

RecommendsComment from 1 Dec 2025 in “DNS Firewalling with MISP and Technitium DNS Server”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.