We are proud to announce the first alpha release of PowerDNS Recursor 4.6.0.
Compared to the previous major (4.5) release of PowerDNS Recursor, this
release contains two major sets of changes:
* a rewrite of the outgoing TCP code, adding both re-use of
connections and support for DoT to authoritative servers or
forwarders,
* many improvements in the area of metrics: more metrics are
collected and more metrics are now exported in a Prometheus
friendly way.
Re-use of TCP/DoT connections is achieved by not closing connections,
leaving them open for re-use. Previously, a TCP connection would be
closed after a single query-reply exchange. The policy used to keep
idle connections open is governed by various settings[1].
By default[2], if a forwarder is specified using port 853, DoT will be
used to connect to that forwarder. It is also possible to list[3]
specific nameservers that should be contacted over DoT. Note that no
certificate validation is done. After the standard committees define
discovery of authoritative servers offering DoT, we will add
functionality to allow automatic switching to DoT including validation
of certificates.
As always, there are also many smaller bug fixes and improvements,
please refer to the changelog[4] for additional details.
Please send us all feedback and issues you might have via the mailing
list[5], or in case of a bug, via GitHub[6].
The tarball[7] (signature[8]) is available from our download server[9]
and packages for several distributions are available from our
repository[10].
With the final 4.6 release, the 4.3.x releases will be EOL and the
4.4.x and 4.5.x releases will go into critical fixes only mode. Consult
the EOL policy[11] for more details.
We would also like to mention that with the 4.5 release we stopped
supporting systems using 32-bit time. This includes 32-bit Linux
platforms like arm6, arm7, and i386.
We are grateful to the PowerDNS community for the reporting of bugs,
issues, feature requests, and especially to the submitters of fixes and
implementations of features.
References
1. https://docs.powerdns.com/recursor/settings.html#tcp-out-max-idle-ms
2. https://docs.powerdns.com/recursor/settings.html#dot-to-port-853
3. https://docs.powerdns.com/recursor/settings.html#dot-to-auth-names
4. https://doc.powerdns.com/recursor/changelog/4.6.html#change-4.6.0-alpha1
5. https://mailman.powerdns.com/mailman/listinfo/pdns-users
6. https://github.com/PowerDNS/pdns/issues/new/choose
7. https://downloads.powerdns.com/releases/pdns-recursor-4.6.0-alpha1.tar.bz2
8.
https://downloads.powerdns.com/releases/pdns-recursor-4.6.0-alpha1.tar.bz2.sig
9. https://downloads.powerdns.com/releases/
10. https://repo.powerdns.com/
11. https://docs.powerdns.com/recursor/appendices/EOL.html
--
kind regards,
Otto Moerbeek
PowerDNS Developer
Email: otto.moerb...@open-xchange.com
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95366
Managing Board: Andreas Gauger, Carsten Dirks, Dirk Valbert, Frank Hoberg,
Stephan Martin
Chairman of the Board: Richard Seibt
PowerDNS.COM BV, Koninginnegracht 14L, 2514 AA Den Haag, The Netherlands
Managing Director: Robert Brandt, Carsten Dirks
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