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94 lines
3.4 KiB
ReStructuredText
94 lines
3.4 KiB
ReStructuredText
..
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Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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This Source Code Form is subject to the terms of the Mozilla Public
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License, v. 2.0. If a copy of the MPL was not distributed with this
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file, you can obtain one at https://mozilla.org/MPL/2.0/.
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See the COPYRIGHT file distributed with this work for additional
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information regarding copyright ownership.
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Notes for BIND 9.17.20
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----------------------
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Security Fixes
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~~~~~~~~~~~~~~
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- None.
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Known Issues
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~~~~~~~~~~~~
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- None.
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New Features
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~~~~~~~~~~~~
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- New finer-grained ``update-policy`` rule types,
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``krb5-subdomain-self-rhs`` and ``ms-subdomain-self-rhs``, were added.
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These rule types restrict updates to SRV and PTR records so that their
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content can only match the machine name embedded in the Kerberos
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principal making the change. :gl:`#481`
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- Support for OpenSSL 3.0.0 APIs was added. :gl:`#2843`
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Removed Features
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~~~~~~~~~~~~~~~~
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- OpenSSL 3.0.0 deprecated support for so-called "engines." Since BIND 9
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currently uses engine_pkcs11 for PKCS#11, compiling BIND 9 against an
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OpenSSL 3.0.0 build which does not retain support for deprecated APIs
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makes it impossible to use PKCS#11 in BIND 9. A replacement for
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engine_pkcs11 which employs the new "provider" approach introduced in
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OpenSSL 3.0.0 is in the making. :gl:`#2843`
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- Since the old socket manager API has been removed, "socketmgr"
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statistics are no longer reported by the :ref:`statistics channel
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<statschannels>`. :gl:`#2926`
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Feature Changes
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~~~~~~~~~~~~~~~
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- The default for ``dnssec-dnskey-kskonly`` was changed to ``yes``. This
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means that DNSKEY, CDNSKEY, and CDS RRsets are now only signed with
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the KSK by default. The additional signatures prepared using the ZSK
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when the option is set to ``no`` add to the DNS response payload
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without offering added value. :gl:`#1316`
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- The default NSEC3 parameters for ``dnssec-policy`` were updated to no
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extra SHA-1 iterations and no salt (``NSEC3PARAM 1 0 0 -``).
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:gl:`#2956`
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- Internal data structures maintained for each cache database are now
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grown incrementally when they need to be expanded. This helps maintain
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a steady response rate on a loaded resolver while these internal data
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structures are resized. :gl:`#2941`
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- The output of ``rndc serve-stale status`` has been clarified. It now
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explicitly reports whether retention of stale data in the cache is
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enabled (``stale-cache-enable``), and whether returning such data in
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responses is enabled (``stale-answer-enable``). :gl:`#2742`
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- The `UseSTD3ASCIIRules`_ flag is now set for libidn2 function calls.
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This enables additional validation rules for IDN domains and hostnames
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in ``dig``. :gl:`#1610`
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.. _UseSTD3ASCIIRules: http://www.unicode.org/reports/tr46/#UseSTD3ASCIIRules
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Bug Fixes
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~~~~~~~~~
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- Reloading a catalog zone which referenced a missing/deleted member
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zone triggered a runtime check failure, causing ``named`` to exit
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prematurely. This has been fixed. :gl:`#2308`
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- Some lame delegations could trigger a dependency loop, in which a
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resolver fetch waited for a name server address lookup which was
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waiting for the same resolver fetch. This could cause a recursive
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lookup to hang until timing out. This situation is now detected and
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prevented. :gl:`#2927`
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- Log files using ``timestamp``-style suffixes were not always correctly
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removed when the number of files exceeded the limit set by
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``versions``. This has been fixed. :gl:`#828`
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