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https://github.com/isc-projects/bind9.git
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215 lines
8.2 KiB
XML
215 lines
8.2 KiB
XML
<!DOCTYPE book [
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<!ENTITY Scaron "Š">
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<!ENTITY ccaron "č">
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<!ENTITY aacute "á">
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<!ENTITY mdash "—">
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<!ENTITY ouml "ö">]>
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<!--
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- Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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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 http://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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-->
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<section xmlns:db="http://docbook.org/ns/docbook" version="5.0"><info/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="noteversion.xml"/>
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<section xml:id="relnotes_intro"><info><title>Introduction</title></info>
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<para>
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This document summarizes changes since the last production
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release on the BIND 9.11 (Extended Support Version) branch.
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Please see the <filename>CHANGES</filename> file for a further
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list of bug fixes and other changes.
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</para>
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</section>
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<section xml:id="relnotes_download"><info><title>Download</title></info>
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<para>
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The latest versions of BIND 9 software can always be found at
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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.isc.org/downloads/">http://www.isc.org/downloads/</link>.
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There you will find additional information about each release,
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source code, and pre-compiled versions for Microsoft Windows
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operating systems.
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</para>
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</section>
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<section xml:id="relnotes_license"><info><title>License Change</title></info>
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<para>
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With the release of BIND 9.11.0, ISC changed to the open
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source license for BIND from the ISC license to the Mozilla
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Public License (MPL 2.0).
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</para>
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<para>
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The MPL-2.0 license requires that if you make changes to
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licensed software (e.g. BIND) and distribute them outside
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your organization, that you publish those changes under that
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same license. It does not require that you publish or disclose
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anything other than the changes you made to our software.
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</para>
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<para>
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This requirement will not affect anyone who is using BIND, with
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or without modifications, without redistributing it, nor anyone
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redistributing it without changes. Therefore, this change will be
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without consequence for most individuals and organizations who are
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using BIND.
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</para>
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<para>
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Those unsure whether or not the license change affects their
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use of BIND, or who wish to discuss how to comply with the
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license may contact ISC at <link
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xlink:href="https://www.isc.org/mission/contact/">
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https://www.isc.org/mission/contact/</link>.
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</para>
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</section>
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<section xml:id="win_support"><info><title>Legacy Windows No Longer Supported</title></info>
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<para>
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As of BIND 9.11.2, Windows XP and Windows 2003 are no longer supported
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platforms for BIND; "XP" binaries are no longer available for download
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from ISC.
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</para>
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</section>
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<section xml:id="relnotes_security"><info><title>Security Fixes</title></info>
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<itemizedlist>
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<listitem>
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<para>
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<command>named</command> could crash during recursive processing
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of DNAME records when <command>deny-answer-aliases</command> was
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in use. This flaw is disclosed in CVE-2018-5740. [GL #387]
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</para>
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</listitem>
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<listitem>
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<para>
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When recursion is enabled but the <command>allow-recursion</command>
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and <command>allow-query-cache</command> ACLs are not specified, they
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should be limited to local networks, but they were inadvertently set
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to match the default <command>allow-query</command>, thus allowing
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remote queries. This flaw is disclosed in CVE-2018-5738. [GL #309]
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="relnotes_features"><info><title>New Features</title></info>
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<itemizedlist>
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<listitem>
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<para>
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<command>named</command> now supports the "root key sentinel"
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mechanism. This enables validating resolvers to indicate
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which trust anchors are configured for the root, so that
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information about root key rollover status can be gathered.
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To disable this feature, add
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<command>root-key-sentinel no;</command> to
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<filename>named.conf</filename>.
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</para>
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</listitem>
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<listitem>
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<para>
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Added the ability not to return a DNS COOKIE option when one
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is present in the request. To prevent a cookie being returned,
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add <command>answer-cookie no;</command> to
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<filename>named.conf</filename>. [GL #173]
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</para>
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<para>
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<command>answer-cookie no</command> is only intended as a
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temporary measure, for use when <command>named</command>
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shares an IP address with other servers that do not yet
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support DNS COOKIE. A mismatch between servers on the
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same address is not expected to cause operational problems,
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but the option to disable COOKIE responses so that all
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servers have the same behavior is provided out of an
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abundance of caution. DNS COOKIE is an important security
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mechanism, and should not be disabled unless absolutely
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necessary.
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</para>
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</listitem>
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<listitem>
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<para>
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Two new update policy rule types have been added
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<command>krb5-selfsub</command> and <command>ms-selfsub</command>
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which allow machines with Kerberos principals to update
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the name space at or below the machine names identified
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in the respective principals.
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="relnotes_removed"><info><title>Removed Features</title></info>
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<itemizedlist>
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<listitem>
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<para>
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<command>named</command> will now log a warning if the old
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BIND now can be compiled against libidn2 library to add
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IDNA2008 support. Previously BIND only supported IDNA2003
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using (now obsolete) idnkit-1 library.
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="relnotes_changes"><info><title>Feature Changes</title></info>
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<itemizedlist>
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<listitem>
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<para>
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<command>dig +noidnin</command> can be used to disable IDN
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processing on the input domain name, when BIND is compiled
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with IDN support.
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</para>
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</listitem>
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<listitem>
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<para>
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Multiple <command>cookie-secret</command> clause are now
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supported. The first <command>cookie-secret</command> in
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<filename>named.conf</filename> is used to generate new
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server cookies. Any others are used to accept old server
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cookies or those generated by other servers using the
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matching <command>cookie-secret</command>.
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="relnotes_bugs"><info><title>Bug Fixes</title></info>
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<itemizedlist>
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<listitem>
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<para>
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<command>named</command> now rejects excessively large
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incremental (IXFR) zone transfers in order to prevent
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possible corruption of journal files which could cause
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<command>named</command> to abort when loading zones. [GL #339]
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</para>
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</listitem>
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<listitem>
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<para>
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<command>rndc reload</command> could cause <command>named</command>
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to leak memory if it was invoked before the zone loading actions
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from a previous <command>rndc reload</command> command were
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completed. [RT #47076]
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</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="end_of_life"><info><title>End of Life</title></info>
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<para>
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BIND 9.11 (Extended Support Version) will be supported until at
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least December, 2021.
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See <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://www.isc.org/downloads/software-support-policy/">https://www.isc.org/downloads/software-support-policy/</link> for details of ISC's software support policy.
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</para>
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</section>
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<section xml:id="relnotes_thanks"><info><title>Thank You</title></info>
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<para>
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Thank you to everyone who assisted us in making this release possible.
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If you would like to contribute to ISC to assist us in continuing to
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make quality open source software, please visit our donations page at
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<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.isc.org/donate/">http://www.isc.org/donate/</link>.
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</para>
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</section>
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</section>
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