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bind9/doc/notes/notes-9.17.11.rst
Ondřej Surý 58bd26b6cf Update the copyright information in all files in the repository
This commit converts the license handling to adhere to the REUSE
specification.  It specifically:

1. Adds used licnses to LICENSES/ directory

2. Add "isc" template for adding the copyright boilerplate

3. Changes all source files to include copyright and SPDX license
   header, this includes all the C sources, documentation, zone files,
   configuration files.  There are notes in the doc/dev/copyrights file
   on how to add correct headers to the new files.

4. Handle the rest that can't be modified via .reuse/dep5 file.  The
   binary (or otherwise unmodifiable) files could have license places
   next to them in <foo>.license file, but this would lead to cluttered
   repository and most of the files handled in the .reuse/dep5 file are
   system test files.
2022-01-11 09:05:02 +01:00

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.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
..
.. SPDX-License-Identifier: MPL-2.0
..
.. This Source Code Form is subject to the terms of the Mozilla Public
.. License, v. 2.0. If a copy of the MPL was not distributed with this
.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
..
.. See the COPYRIGHT file distributed with this work for additional
.. information regarding copyright ownership.
Notes for BIND 9.17.11
----------------------
New Features
~~~~~~~~~~~~
- ``dig`` has been extended to support DNS-over-HTTPS (DoH) queries,
using ``dig +https`` and related options. :gl:`#1641`
- A new ``purge-keys`` option has been added to ``dnssec-policy``. It
sets the period of time that key files are retained after becoming
obsolete due to a key rollover; the default is 90 days. This feature
can be disabled by setting ``purge-keys`` to 0. :gl:`#2408`
Feature Changes
~~~~~~~~~~~~~~~
- To prevent users from inadvertently configuring unencrypted
DNS-over-HTTPS (DoH) in BIND 9, ``listen-on`` and ``listen-on-v6``
statements using the ``http`` parameter must now also specify the
``tls`` parameter. ``tls none`` can be used to explicitly allow
unencrypted HTTP connections. :gl:`#2472`
- ``http default`` can now be specified in ``listen-on`` and
``listen-on-v6`` statements to use the default HTTP endpoint of
``/dns-query``. It is no longer necessary to include an ``http``
statement in ``named.conf`` unless overriding this value. :gl:`#2472`
Bug Fixes
~~~~~~~~~
- Zone journal (``.jnl``) files created by versions of ``named`` prior
to 9.16.12 were no longer compatible; this could cause problems when
upgrading if journal files were not synchronized first. This has been
corrected: older journal files can now be read when starting up. When
an old-style journal file is detected, it is updated to the new format
immediately after loading.
Note that journals created by the current version of ``named`` are not
usable by versions prior to 9.16.12. Before downgrading to a prior
release, users are advised to ensure that all dynamic zones have been
synchronized using ``rndc sync -clean``.
A journal file's format can be changed manually by running
``named-journalprint -d`` (downgrade) or ``named-journalprint -u``
(upgrade). Note that this *must not* be done while ``named`` is
running. :gl:`#2505`
- ``named`` crashed when it was allowed to serve stale answers and
``stale-answer-client-timeout`` was triggered without any (stale) data
available in the cache to answer the query. :gl:`#2503`
- If an outgoing packet exceeded ``max-udp-size``, ``named`` dropped it
instead of sending back a proper response. To prevent this problem,
the ``IP_DONTFRAG`` option is no longer set on UDP sockets, which has
been happening since BIND 9.17.6. :gl:`#2466`
- NSEC3 records were not immediately created when signing a dynamic zone
using ``dnssec-policy`` with ``nsec3param``. This has been fixed.
:gl:`#2498`
- A memory leak occurred when ``named`` was reconfigured after adding an
inline-signed zone with ``auto-dnssec maintain`` enabled. This has
been fixed. :gl:`#2041`
- An invalid direction field (not one of ``N``, ``S``, ``E``, ``W``) in
a LOC record resulted in an INSIST failure when a zone file containing
such a record was loaded. :gl:`#2499`
- If an invalid key name (e.g. ``a..b``) was specified in a
``primaries`` list in ``named.conf``, the wrong size was passed to
``isc_mem_put()``, which resulted in the returned memory being put on
the wrong free list and prevented ``named`` from starting up. This has
been fixed. :gl:`#2460`
- ``libtool`` was inadvertently introduced as a build-time requirement
when the build system was revamped in BIND 9.17.2. This unnecessarily
prevented hosts without that tool from building BIND 9 from source
tarballs. A standalone ``libtool`` script no longer needs to be
present in ``PATH`` to build BIND 9 from a source tarball. :gl:`#2504`