🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026
Affected versions: FreeBSD 13

📖 ~1 min read

Table of contents
  1. Symptom & Impact
  2. Environment & Reproduction
  3. Root Cause Analysis
  4. Quick Triage
  5. Step-by-Step Diagnosis
  6. Solution – Primary Fix
  7. Solution – Alternative Approaches
  8. Verification & Acceptance Criteria
  9. Rollback Plan
  10. Prevention & Hardening
  11. Related Errors & Cross-Refs
  12. References & Further Reading

Symptom & Impact

Name resolution delays on FreeBSD 13 can affect package installs, updates, and network service startup.

Environment & Reproduction

Commands such as pkg update or fetch stall, and host or drill queries take several seconds.

Root Cause Analysis

Broken upstream resolvers, unreachable DNS over network policy, or invalid resolv.conf ordering are typical causes.

Quick Triage

Run drill freebsd.org, check /etc/resolv.conf, and test gateway reachability with ping and traceroute.

Step-by-Step Diagnosis

Confirm current DNS server order and timeout behavior from the shell. image_ref=0

Illustrative mockup for freebsd-13 — terminal_or_shell
Testing DNS responses from FreeBSD shell tools — Illustrative mockup — Progressive Robot

Solution – Primary Fix

Set known-good nameservers in resolv.conf, restart networking if needed, and retest query times with drill. image_ref=1

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Illustrative mockup for freebsd-13 — log_or_config
Editing and auditing resolv.conf settings — Illustrative mockup — Progressive Robot

Solution – Alternative Approaches

If local unbound is used, enable with sysrc local_unbound_enable=”YES” and restart via service local_unbound restart.

Verification & Acceptance Criteria

Persist interface DNS with /etc/rc.conf settings when DHCP is not authoritative for resolver values.

Rollback Plan

Allow outbound udp and tcp port 53 in pf and validate no policy route blackholes exist.

Prevention & Hardening

Measure repeated drill queries and ensure pkg update completes without resolver timeout warnings.

Monitor resolver latency and keep fallback DNS entries documented for incident response.

Related tutorial: View the step-by-step tutorial for freebsd-13.

View all freebsd-13 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

Refer to man resolv.conf, man drill, and local_unbound guidance in FreeBSD documentation.

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