mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-27 12:38:24 +00:00
94 lines
3.5 KiB
ReStructuredText
94 lines
3.5 KiB
ReStructuredText
.. 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 9.19.12
|
|
----------------------
|
|
|
|
Security Fixes
|
|
~~~~~~~~~~~~~~
|
|
|
|
- An error in DNS message processing introduced in development version
|
|
9.19.11 could cause BIND and its utilities to crash if the maximum
|
|
permissible number of DNS labels were present. This has been fixed.
|
|
:gl:`#3998`
|
|
|
|
Known Issues
|
|
~~~~~~~~~~~~
|
|
|
|
- Loading a large number of zones is significantly slower in BIND
|
|
9.19.12 than in the previous development releases due to a new data
|
|
structure being used for storing information about the zones to serve.
|
|
This slowdown is considered to be a bug and will be addressed in a
|
|
future BIND 9.19.x development release. :gl:`#4006`
|
|
|
|
- A flaw in reworked code responsible for accepting TCP connections may
|
|
cause a visible performance drop for TCP queries on some platforms,
|
|
notably FreeBSD. This issue will be fixed in a future BIND 9.19.x
|
|
development release. :gl:`#3985`
|
|
|
|
- See :ref:`above <relnotes_known_issues>` for a list of all known issues
|
|
affecting this BIND 9 branch.
|
|
|
|
New Features
|
|
~~~~~~~~~~~~
|
|
|
|
- BIND now depends on `liburcu`_, Userspace RCU, for lock-free data
|
|
structures. :gl:`#3934`
|
|
|
|
- The new command-line :option:`delv +ns` option activates name server
|
|
mode, to more accurately reproduce the behavior of :iscman:`named`
|
|
when resolving a query. In this mode, :iscman:`delv` uses an internal
|
|
recursive resolver rather than an external server. All messages sent
|
|
and received during the resolution and validation process are logged.
|
|
This can be used in place of :option:`dig +trace`. :gl:`#3842`
|
|
|
|
- A new configuration option, :any:`checkds`, has been introduced. When
|
|
set to ``yes``, it detects :any:`parental-agents` automatically by
|
|
resolving the parent NS records. These name servers are queried to
|
|
check the DS RRset during a KSK rollover initiated by
|
|
:any:`dnssec-policy`. :gl:`#3901`
|
|
|
|
.. _`liburcu`: https://liburcu.org/
|
|
|
|
Removed Features
|
|
~~~~~~~~~~~~~~~~
|
|
|
|
- The TKEY Mode 2 (Diffie-Hellman Exchanged Keying Mode) has been
|
|
removed and using TKEY Mode 2 is now a fatal error. Users are advised
|
|
to switch to TKEY Mode 3 (GSS-API). :gl:`#3905`
|
|
|
|
- Zone type ``delegation-only``, and the ``delegation-only`` and
|
|
``root-delegation-only`` statements, have been removed. Using them is
|
|
a configuration error.
|
|
|
|
These statements were created to address the SiteFinder controversy,
|
|
in which certain top-level domains redirected misspelled queries to
|
|
other sites instead of returning NXDOMAIN responses. Since top-level
|
|
domains are now DNSSEC-signed, and DNSSEC validation is active by
|
|
default, the statements are no longer needed. :gl:`#3953`
|
|
|
|
Feature Changes
|
|
~~~~~~~~~~~~~~~
|
|
|
|
- The log message ``resolver priming query complete`` has been moved
|
|
from the INFO log level to the DEBUG(1) log level, to prevent
|
|
:iscman:`delv` from emitting that message when setting up its internal
|
|
resolver. :gl:`#3842`
|
|
|
|
Bug Fixes
|
|
~~~~~~~~~
|
|
|
|
- Several bugs which could cause :iscman:`named` to crash during catalog
|
|
zone processing have been fixed. :gl:`#3955` :gl:`#3968` :gl:`#3997`
|
|
|
|
- Performance of DNSSEC validation in zones with many DNSKEY records has
|
|
been improved. :gl:`#3981`
|