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71 lines
2.4 KiB
ReStructuredText
71 lines
2.4 KiB
ReStructuredText
.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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..
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.. SPDX-License-Identifier: MPL-2.0
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..
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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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..
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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 9.17.22
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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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- ``named`` now logs TLS pre-master secrets for debugging purposes when
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the ``SSLKEYLOGFILE`` environment variable is set. This enables
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troubleshooting issues with encrypted DNS traffic. :gl:`#2723`
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Removed Features
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~~~~~~~~~~~~~~~~
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- The IPv6 sockets are now explicitly restricted to sending and receiving IPv6
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packets only. This renders the ``dig`` option ``+mapped`` non-functioning and
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thus the option has been removed. :gl:`#3093`
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Feature Changes
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~~~~~~~~~~~~~~~
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- Overall memory use by ``named`` has been optimized and reduced,
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especially on systems with many CPU cores. :gl:`#2398` :gl:`#3048`
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- ``named`` formerly generated an ephemeral key and certificate for the
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``tls ephemeral`` configuration using the RSA algorithm with 4096-bit
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keys. This has been changed to the ECDSA P-256 algorithm. :gl:`#2264`
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Bug Fixes
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~~~~~~~~~
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- On FreeBSD, TCP connections leaked a small amount of heap memory,
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leading to an eventual out-of-memory problem. This has been fixed.
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:gl:`#3051`
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- If signatures created by the ZSK were expired and the ZSK private key
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was offline, the signatures were not replaced. This behavior has been
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amended to replace the expired signatures with new signatures created
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using the KSK. :gl:`#3049`
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- Under certain circumstances, the signed version of an inline-signed
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zone could be dumped to disk without the serial number of the unsigned
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version of the zone. This prevented resynchronization of the zone
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contents after ``named`` restarted, if the unsigned zone file was
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modified while ``named`` was not running. This has been fixed.
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:gl:`#3071`
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- With libuv >= 1.37.0, the recvmmsg support would not be enabled in ``named``
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reducing the maximum query-response performance. The recvmmsg support would
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be used only in libuv 1.35.0 and 1.36.0. This has been fixed. :gl:`#3095`
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