Unbound 1.19.3rc1 pre-release

Thu Mar 7 14:30:43 UTC 2024

Just trying out 1.19.3rc1 and got this error when I run my PowerShell configuration script.

=====
unbound-checkconf: no errors in C:\Program Files\Unbound\service.conf
error: Error setting up SSL_CTX client cert
38570000:error:0A00018F:SSL routines:SSL_CTX_use_certificate:ee key too small:ssl/ssl_rsa.c:239:

Failed to reload the server please restart it manually:
=====

The script at the end of setting up all the various files to reload the server is:

=====
@echo off
cd "C:\Program Files\Unbound"
C:
"C:\Program Files\Unbound\unbound-checkconf.exe"
if %errorlevel% neq 0 goto invalid
"C:\Program Files\Unbound\unbound-control.exe" reload
if %errorlevel% neq 0 goto noreload
echo.
echo Server reloaded
"ipconfig" /flushdns
goto end
:noreload
echo.
echo Failed to reload the server please restart it manually:
goto end
:invalid
echo.
echo Please check the configuration is valid:
:end
echo.
pause
=====

Restarting the Unbound service manually via Computer Management worked OK.

07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info: service stopped (unbound 1.19.3rc1).
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info: server stats for thread 0: 435 queries, 49 answers from cache, 386 recursions, 10 prefetch, 0 rejected by ip ratelimiting
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info: server stats for thread 0: requestlist max 10 avg 1.34848 exceeded 0 jostled 0
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info: average recursion processing time 0.129783 sec
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info: histogram of recursion processing times
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info: [25%]=0.0384748 median[50%]=0.0796232 [75%]=0.151052
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info: lower(secs) upper(secs) recursions
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.000000    0.000001 9
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.004096    0.008192 1
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.008192    0.016384 24
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.016384    0.032768 47
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.032768    0.065536 89
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.065536    0.131072 107
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.131072    0.262144 82
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.262144    0.524288 15
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    0.524288    1.000000 6
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    1.000000    2.000000 2
07/03/2024 14:22:38 C:\Program Files\Unbound\unbound.exe[23324:0] info:    2.000000    4.000000 4
07/03/2024 14:22:40 C:\Program Files\Unbound\unbound.exe[7536:0] notice: init module 0: respip
07/03/2024 14:22:40 C:\Program Files\Unbound\unbound.exe[7536:0] notice: init module 1: validator
07/03/2024 14:22:40 C:\Program Files\Unbound\unbound.exe[7536:0] notice: init module 2: iterator
07/03/2024 14:22:40 C:\Program Files\Unbound\unbound.exe[7536:0] info: start of service (unbound 1.19.3rc1).

-----Original Message-----
From: Wouter Wijngaards <wouter at nlnetlabs.nl> 
Sent: Thursday, March 7, 2024 11:09 AM
To: maintainers at lists.nlnetlabs.nl; unbound-users at lists.nlnetlabs.nl
Subject: Unbound 1.19.3rc1 pre-release

Hi,

Unbound 1.19.3rc1 pre-release is available:
https://nlnetlabs.nl/downloads/unbound/unbound-1.19.3rc1.tar.gz
sha256 9445dbb3a79c8155c6d25b72e6a0f85e1dc3b63f794e6b1f7a02d14588d905be
pgp https://nlnetlabs.nl/downloads/unbound/unbound-1.19.3rc1.tar.gz

This is the maintainer's pre-release of Unbound 1.19.3rc1.

This release has a number of bug fixes. The CNAME synthesized for a DNAME record uses the original TTL, of the DNAME record, and that means it can be cached for the TTL, instead of 0.

There is a fix that when a message was stored in cache, but one of the RRsets was not updated due to cache policy, it now restricts the message TTL if the cache version of the RRset has a shorter TTL. It avoids a bug where the message is not expired, but its contents is expired.

For dnstap, it logs type DoH and DoT correctly, if that is used for the message.

The b.root-servers.net address is updated in the default root hints.

When performing retries for failed sends, a retry at a smaller UDP size is now not performed when that attempt is not actually smaller, and at defaults, since the flag day changes, it is the same size. This makes it skip the step, it is useless because there is no reduction in size.

Clients with a valid DNS Cookie will bypass the ratelimit, if one is set. The value from ip-ratelimit-cookie is used for these queries.

Furthermore there is a fix to make correct EDE Prohibited answers for access control denials, and a fix for EDNS client subnet scope zero answers.

Features:
- Merge PR #973: Use the origin (DNAME) TTL for synthesized CNAMEs as
   per RFC 6672.

Bug Fixes:
- Fix unit test parse of origin syntax.
- Use 127.0.0.1 explicitly in tests to avoid delays and errors on
   newer systems.
- Fix #964: config.h.in~ backup file in release tar balls.
- Merge #968: Replace the obsolescent fgrep with grep -F in tests.
- Merge #971: fix 'WARNING: Message has 41 extra bytes at end'.
- Fix #969: [FR] distinguish Do53, DoT and DoH in the logs.
- Fix dnstap that assertion failed on logging other than UDP and TCP
   traffic. It lists it as TCP traffic.
- Fix to sync the tests script file common.sh.
- iana portlist update.
- Updated IPv4 and IPv6 address for b.root-servers.net in root hints.
- Update test script file common.sh.
- Fix tests to use new common.sh functions, wait_logfile and
   kill_from_pidfile.
- Fix #974: doc: default number of outgoing ports without libevent.
- Merge #975: Fixed some syntax errors in rpl files.
- Fix root_zonemd unit test, it checks that the root ZONEMD verifies,
   now that the root has a valid ZONEMD.
- Update example.conf with cookie options.
- Merge #980: DoH: reject non-h2 early. To fix #979: Improve errors
   for non-HTTP/2 DoH clients.
- Merge #985: Add DoH and DoT to dnstap message.
- Fix #983: Sha1 runtime insecure change was incomplete.
- Remove unneeded newlines and improve indentation in remote control
   code.
- Merge #987: skip edns frag retry if advertised udp payload size is
   not smaller.
- Fix unit test for #987 change in udp1xxx retry packet send.
- Merge #988: Fix NLnetLabs#981: dump_cache truncates large records.
- Fix to link with -lcrypt32 for OpenSSL 3.2.0 on Windows.
- Fix to link with libssp for libcrypto and getaddrinfo check for
   only header. Also update crosscompile to remove ssp for 32bit.
- Merge #993: Update b.root-servers.net also in example config file.
- Update workflow for ports to use newer openssl on windows compile.
- Fix warning for windres on resource files due to redefinition.
- Fix for #997: Print details for SSL certificate failure.
- Update error printout for duplicate trust anchors to include the
   trust anchor name (relates to #920).
- Update message TTL when using cached RRSETs. It could result in
   non-expired messages with expired RRSETs (non-usable messages by
   Unbound).
- Merge #999: Search for protobuf-c with pkg-config.
- Fix #1006: Can't find protobuf-c package since #999.
- Fix documentation for access-control in the unbound.conf man page.
- Merge #1010: Mention REFUSED has the TC bit set with unmatched
   allow_cookie acl in the manpage. It also fixes the code to match the
   documentation about clients with a valid cookie that bypass the
   ratelimit regardless of the allow_cookie acl.
- Document the suspend argument for process_ds_response().
- Move github workflows to use checkoutv4.
- Fix edns subnet replies for scope zero answers to not get stored
   in the global cache, and in cachedb, when the upstream replies
   without an EDNS record.
- Fix for #1022: Fix ede prohibited in access control refused answers.

Best regards, Wouter