Changelogs for 4.5.X

4.5.6

Released: 11th of October 2021

Bug Fixes

• Do not use DNSKEYs found below an apex for validation.

  References: #10565, pull request 10806

• Detect a loop when the denial of the DS comes from the child zone.

  References: #10622, pull request 10807

• Match ordering of PacketID using the Birthday vs non-Birthday comparator.

  References: #10632, pull request 10809

• Pass the Lua context to follow up queries (follow CNAME, dns64).

  References: #10633, pull request 10811

• Only the DNAME records are authoritative in DNAME answers.

  References: #10718, pull request 10813

• Use the correct RPZ policy name for statistics when loading via XFR.

  References: #10768, pull request 10803

• Fix the aggressive cache returning duplicated NSEC3 records.

  References: #10701, pull request 10717

• NS from the cache could be a forwarder, take that into account for throttling decision.

  References: #10643, pull request 10655

• Check in more places if the policy has been updated before using or modifying it.

  References: #10627, pull request 10629

4.5.5

Released: 30th of July 2021

Improvements

• Work around clueless servers sending AA=0 answers.

  References: #10555, pull request 10564

Bug Fixes

• Ancestor NSEC3s can only deny the existence of a DS.

  References: #10587, pull request 10593

• Make really sure we did not miss a cut on validation failure.

  References: #10570, pull request 10575

• Clear the current proxy protocol values each iteration.

  References: #10515, pull request 10573

4.5.4

Released: 2nd of July 2021, 4.5.3 was never released publicly.

Bug Fixes

• Make sure that we pass the SOA along the NSEC(3) proof for DS queries.

  References: pull request 10519

4.5.2

Released: 9th of June 2021

Improvements

• Change nsec3-max-iterations default to 150.

  References: #10440, pull request 10477

• For the NOD lookup case, we don’t want QName Minimization.

  References: #10420, pull request 10422

Bug Fixes

• Don’t follow referral from the parent to the child for DS queries.

  References: #10460, pull request 10476

• When refreshing, do not consider root almost expired.

  References: #10426, pull request 10475

• Take into account q_quiet when determining loglevel and change a few loglevels.

  References: #10396, pull request 10474

• Only add the NSEC and RRSIG records once in wildcard NODATA answers.

  References: #10350, pull request 10473

4.5.1

Released: 11th of May 2021

Bug Fixes

• Prevent a race in the aggressive NSEC cache.

  References: pull request 10377

4.5.0

Released: Never released publicly.

Bug Fixes

• Apply dns64 on RPZ hits generated after a gettag_ffi hit.

  References: pull request 10353

4.5.0-rc1

Released: 28th of April 2021

Improvements

• Boost 1.76 containers: use standard exceptions.

  References: #10329, pull request 10335

• Fix wording in edns-padding-tag help.

  References: #10318, pull request 10334

• Improve packet cache size computation now that TCP answers are also cached.

  References: #10312, pull request 10333

• Print the covering NSEC in tracing log.

  References: #10298, pull request 10307

Bug Fixes

• Do not put results of DS query for auth or forward domains in negcache.

  References: #10317, pull request 10320

• Use the correct ECS address when proxy-protocol is enabled.

  References: #10303, pull request 10319

• Exception loading the RPZ seed file is not fatal.

  References: #10291, pull request 10306

• RPZ dumper: stop generating double zz labels on networks that start with zeroes.

  References: #10286, pull request 10305

4.5.0-beta2

Released: 14th of April 2021

Improvements

• Log local IP in dnstap messages.

  References: #10268, pull request 10280

• Also disable PMTU for IPv6.

  References: #10264, pull request 10279

Bug Fixes

• Clear “from” in record cache if we don’t know where the update came from.

  References: #10232, pull request 10278

• Better handling of stranded DNSKeys.

  References: #10223, pull request 10277

4.5.0-beta1

Released: 26th of March 2021

Improvements

• Support TCP FastOpen connect on outgoing connections.

  References: #7982, pull request 9995

• Implement EDNS0 padding (rfc7830) for outgoing responses.

  References: pull request 8918

• Get rid of early zone cut computation when doing DNSSEC validation.

  References: pull request 10057

• Insert hints as non-auth into cache.

  References: #10177, pull request 10182

• Don’t pick up random root NS records from AUTHORITY sections.

  References: #10125, pull request 10178

• Using DATA to report memory usage is unreliable, start using RES instead, as it seems reliable and relevant.

  References: #7591, pull request 10161

Bug Fixes

• Make sure we take the right minimum for the packet cache TTL data.

  References: pull request 10185

4.5.0-alpha3

Released: 9th of March 2021

Improvements

• Check sizeof(time_t) to be at least 8.

  References: pull request 10010

• Change dnssec default to process.

  References: pull request 10118

• Implement rfc 8198 - Aggressive Use of DNSSEC-Validated Cache.

  References: pull request 10047

• Be less verbose telling we are looking up CNAMEs or DNAMEs while tracing.

  References: pull request 10112

• Add validation state to protobuf message.

  References: #8587, pull request 10113

• Add Policy Kind / RPZ action to Protobuf messages.

  References: #9654, #9653, pull request 10109

• Count DNSSEC stats for given names in a different set of counters.

  References: #10058, pull request 10089

• Remember non-resolving nameservers.

  References: pull request 10096

• Pass an fd to dump to from rec_control to the recursor.

  References: pull request 9468

• Introduce settings to never cache EDNS Client (v4/v6) Subnet carrying replies.

  References: pull request 10075

• Change spoof-nearmiss-max default to 1.

  References: #9845, pull request 10077

• Add missing entries to Prometheus metrics.

  References: #10021, pull request 10022

• Also use packetcache for tcp queries.

  References: pull request 9990

• Document taskqueue metrics and add them to SNMP MIB.

  References: #10009, pull request 10020

• Treat the .localhost domain as special.

  References: pull request 9996

Bug Fixes

• Handle policy (if needed) after postresolve and document the hooks better.

  References: #10080, pull request 10111

• Return current rcode instead of 0 if there are no CNAME records to follow.

  References: #9547, pull request 10064

4.5.0-alpha2

Released: This release was never made public.

4.5.0-alpha1

Released: 15th of January 2021

Improvements

• Introduce “Refresh almost expired” a mechanism to keep the record cache warm.

  References: #440, pull request 9699

• Use protozero for Protocol Buffer operations in dnsdist, and dnstap/outgoing for the recursor.

  References: #9781, #9780, pull request 9630, pull request 9843

• Use a short-lived NSEC3 hashes cache for denial validation.

  References: pull request 9856

• Introduce synonyms for offensive language in settings and docs.

  References: pull request 9670

• Handle failure to start the web server more gracefully.

  References: #9808, pull request 9812

• Switch default TTL override to 1.

  References: pull request 9720

• Log the exact Bogus state when ‘dnssec-log-bogus’ is enabled.

  References: pull request 9806 9828

• Switch to TCP in case of spoofing (near-miss) attempts.

  References: pull request 9744

• Add support for rfc8914: Extended DNS Errors.

  References: pull request 9673

• Two OpenBSD improvements for UDP sockets: port randomization and EAGAIN errors.

  References: pull request 9633

• Cleanup of RPZ refresh handling.

  References: pull request 9594

• Refactor the percentage computation and use rounding.

  References: pull request 9629

• Throttle servers sending invalid data and rcodes.

  References: pull request 9571

• Terminate TCP connections instead of ‘ignoring’ errors.

  References: pull request 9572

• Don’t parse any config with –version.

  References: pull request 9569

• Expose typed cache flush via Web API.

  References: pull request 9562

• Remove query-local-address6.

  References: pull request 9554

• Lua: add backtraces to errors.

  References: pull request 8942

• Log the line received from rec_control.

  References: pull request 9493

• Shared and sharded neg cache.

  References: pull request 9475

Bug Fixes

• Lookup DS entries before CNAME entries.

  References: #9621, pull request 9883

• Fix the gathering of denial proof for wildcard-expanded answers.

  References: pull request 9793

• Actually discard invalid RRSIGs with too high labels count.

  References: pull request 9789

• x-our-latency is a gauge.

  References: #9638, pull request 9686

• Make parse ip:port a bit smarter.

  References: #7743, pull request 9432

• Fix wipe-cache-typed.

  References: pull request 9515

• Detach snmp thread to avoid trouble when trying to quit nicely.

  References: pull request 9492