dearsky/numa
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Code Issues 10 Pull Requests 1 Actions Packages Projects Releases 25 Wiki Activity
106 Commits 4 Branches 25 Tags
dbf3f73f146144405258d140e353f8d7bf8542df
Commit Graph

4 Commits

Author SHA1 Message Date
Razvan Dimescu
dbf3f73f14 chore: move generated blog HTML to site/blog/posts/, gitignore 
- Generated HTML now in site/blog/posts/ (gitignored)
- CI workflow runs pandoc + make blog before deploy
- Updated all internal blog links to /blog/posts/ path
- blog/*.md remains the source of truth

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-28 01:23:43 +02:00
Razvan Dimescu
231adc523d fix: NS cache lookup from authorities, UDP re-probe, shield alignment 
- find_closest_ns checks authorities (not just answers) for NS records,
  fixing TLD priming cache misses that caused redundant root queries
- Periodic UDP re-probe every 5min when disabled — re-enables UDP
  after switching from a restrictive network to an open one
- Dashboard DNSSEC shield uses fixed-width container for alignment
- Blog post: tuck key-tag into trust anchor paragraph

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-27 23:58:30 +02:00
Razvan Dimescu
5f43d262d6 feat: DNSSEC verified badge in dashboard query log 
- Add dnssec field to QueryLogEntry, track validation status per query
- DnssecStatus::as_str() for API serialization
- Dashboard shows green checkmark next to DNSSEC-verified responses
- Blog post: add "How keys get there" section, transport resilience section,
  trim code blocks, update What's Next

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-27 21:32:29 +02:00
Razvan Dimescu
5b2cc874a1 feat: TCP fallback, query minimization, UDP auto-disable 
Transport resilience for restrictive networks (ISPs blocking UDP:53):
- DNS-over-TCP fallback: UDP fail/truncation → automatic TCP retry
- UDP auto-disable: after 3 consecutive failures, switch to TCP-first
- IPv6 → TCP directly (UDP socket binds 0.0.0.0, can't reach IPv6)
- Network change resets UDP detection for re-probing
- Root hint rotation in TLD priming

Privacy:
- RFC 7816 query minimization: root servers see TLD only, not full name

Code quality:
- Merged find_starting_ns + find_starting_zone → find_closest_ns
- Extracted resolve_ns_addrs_from_glue shared helper
- Removed overall timeout wrapper (per-hop timeouts sufficient)
- forward_tcp for DNS-over-TCP (RFC 1035 §4.2.2)

Testing:
- Mock TCP-only DNS server for fallback tests (no network needed)
- tcp_fallback_resolves_when_udp_blocked
- tcp_only_iterative_resolution
- tcp_fallback_handles_nxdomain
- udp_auto_disable_resets
- Integration test suite (4 suites, 51 tests)
- Network probe script (tests/network-probe.sh)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-27 19:50:19 +02:00