bind9/doc/notes/notes-9.21.15.rst
2025-11-06 17:53:30 +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 9.21.15
----------------------
New Features
~~~~~~~~~~~~
- New :option:`rndc showconf` command.
The new :option:`rndc showconf` command prints the running server
configuration. There are three options:
- ``rndc showconf -user`` shows only settings explicitly declared in
:iscman:`named.conf`.
- ``rndc showconf -builtin`` shows the default settings, similar to
:option:`named -C`.
- ``rndc showconf -effective`` shows the result of applying user
settings to defaults.
:gl:`#1075`
- :option:`named-checkconf -b` dumps the built-in configuration.
:iscman:`named-checkconf` now supports the option ``-b``, that prints
the default built-in configuration used by :iscman:`named`. When
the option is used, other options are ignored. :gl:`#1326`
- :option:`named-checkconf -e` prints the effective configuration.
The new :option:`named-checkconf -e` option prints the effective
server configuration. This is what would result from loading the
specified configuration file into :iscman:`named`. The report
includes all default settings, as modified by user values from the
configuration file. :gl:`#2798`
- Add support for Extended DNS Error 24 (Invalid Data).
See :rfc:`8914` section 4.25. :gl:`#1836`
Removed Features
~~~~~~~~~~~~~~~~
- Remove the ``tkey-domain`` statement.
The previously deprecated ``tkey-domain`` statement has now been
removed. :gl:`#4204`
- Remove the ``tkey-gssapi-credential`` statement.
The previously deprecated ``tkey-gssapi-credential`` statement and all
code related to it have now been removed. :gl:`#4204`
Feature Changes
~~~~~~~~~~~~~~~
- Minimal Meson version required is 1.3.0.
Where distribution repositories don't provide Meson 1.3.0 or newer,
the PyPI repository may be used instead.
Bug Fixes
~~~~~~~~~
- Skip unsupported algorithms when looking for a signing key.
A mix of supported and unsupported DNSSEC algorithms in the same zone
could cause validation failures. Unsupported algorithms are now
ignored when looking for signing keys. :gl:`#5622`
- Report when a zone reload is already in progress.
Previously, if a user attempted to manually reload a zone that was
already being reloaded, the message returned was "zone reload queued".
The message has been changed to "zone reload was already queued".
:gl:`#5140`
- Fix :iscman:`dnssec-keygen` key collision checking for KEY RRtype
keys.
The :iscman:`dnssec-keygen` utility program failed to detect possible
KEY ID collisions with existing keys generated using the non-default
``-T KEY`` option (e.g., for ``SIG(0)``). This has been fixed.
:gl:`#5506`
- :iscman:`dnssec-verify` now uses exit code 1 when failing due to
illegal options.
Previously, :iscman:`dnssec-verify` exited with code 0 if the options
could not be parsed. This has been fixed. :gl:`#5574`
- Prevent assertion failures of :iscman:`dig` when a server is specified
before the ``-b`` option.
Previously, :iscman:`dig` could exit with an assertion failure when
a server was specified before the :option:`dig -b` option. This has
been fixed. :gl:`#5609`
- Skip buffer allocations if not logging.
Previously, we allocated a 2KB buffer for IXFR change logging,
regardless of the log level.
This results in a 28% speedup in some scenarios.