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75c0816e8295e180f4bc7f10db3d0d880383bc1cMark Andrews - Copyright (C) 2000-2015 Internet Systems Consortium, Inc. ("ISC")
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - This Source Code Form is subject to the terms of the Mozilla Public
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - License, v. 2.0. If a copy of the MPL was not distributed with this
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - file, You can obtain one at http://mozilla.org/MPL/2.0/.
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3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews<link rel="next" href="Bv9ARM.ch10.html" title="Appendix�B.�A Brief History of the DNS and BIND">
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cedb0bd0c1e3c461b7e479a16d3adfd5b150f1f4Mark Andrews<tr><th colspan="3" align="center">Appendix�A.�Release Notes</th></tr>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a accesskey="p" href="Bv9ARM.ch08.html">Prev</a>�</td>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch10.html">Next</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h1 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="Bv9ARM.ch09"></a>Release Notes</h1></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#id-1.10.2">Release Notes for BIND Version 9.11.0rc3</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_intro">Introduction</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_download">Download</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_license">License Change</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_security">Security Fixes</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_features">New Features</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_changes">Feature Changes</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_bugs">Bug Fixes</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#end_of_life">End of Life</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_thanks">Thank You</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title" style="clear: both">
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews<a name="id-1.10.2"></a>Release Notes for BIND Version 9.11.0rc3</h2></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews<a name="relnotes_intro"></a>Introduction</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein BIND 9.11.0 is a new feature release of BIND, still under development.
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews This document summarizes new features and functional changes that
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews have been introduced on this branch. With each development
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein release leading up to the final BIND 9.11.0 release, this document
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews will be updated with additional features added and bugs fixed.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews<a name="relnotes_download"></a>Download</h3></div></div></div>
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews The latest versions of BIND 9 software can always be found at
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews <a class="link" href="http://www.isc.org/downloads/" target="_top">http://www.isc.org/downloads/</a>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein There you will find additional information about each release,
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews source code, and pre-compiled versions for Microsoft Windows
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein operating systems.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews<a name="relnotes_license"></a>License Change</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein With the release of BIND 9.11.0, ISC is changing the open
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein source license for BIND from the ISC license to the Mozilla
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews Public License (MPL 2.0). This change is effective from BIND
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 9.11.0b1 onwards.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The MPL-2.0 license requires that if you make changes to
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews licensed software (e.g. BIND) and distribute them outside
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein your organization, that you publish those changes under that
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein same license. It does not require that you publish or disclose
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews anything other than the changes you made to our software.
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews This new requirement will not affect anyone who is using BIND
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews without redistributing it, nor anyone redistributing it without
7208386cd37a2092c70eddf80cf29519b16c4c80Mark Andrews changes, therefore this change will be without consequence
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein for most individuals and organizations who are using BIND.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Those unsure whether or not the license change affects their
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein use of BIND, or who wish to discuss how to comply with the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein license may contact ISC at <a class="link" href="https://www.isc.org/mission/contact/" target="_top">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="relnotes_security"></a>Security Fixes</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein It was possible to trigger a assertion when rendering a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein message using a specially crafted request. This flaw is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein disclosed in CVE-2016-2776. [RT #43139]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein getrrsetbyname with a non absolute name could trigger an
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein infinite recursion bug in lwresd and named with lwres
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein configured if when combined with a search list entry the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein resulting name is too long. This flaw is disclosed in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein CVE-2016-2775. [RT #42694]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="relnotes_features"></a>New Features</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A new method of provisioning secondary servers called
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein "Catalog Zones" has been added. This is an implementation of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a class="link" href="https://datatracker.ietf.org/doc/draft-muks-dnsop-dns-catalog-zones/" target="_top">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein draft-muks-dnsop-dns-catalog-zones/
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A catalog zone is a regular DNS zone which contains a list
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of "member zones", along with the configuration options for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein each of those zones. When a server is configured to use a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein catalog zone, all the zones listed in the catalog zone are
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein added to the local server as slave zones. When the catalog
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein zone is updated (e.g., by adding or removing zones, or
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein changing configuration options for existing zones) those
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein changes will be put into effect. Since the catalog zone is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein itself a DNS zone, this means configuration changes can be
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein propagated to slaves using the standard AXFR/IXFR update
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein This feature should be considered experimental. It currently
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein supports only basic features; more advanced features such as
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein ACLs and TSIG keys are not yet supported. Example catalog
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein zone configurations can be found in the Chapter 9 of the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein BIND Administrator Reference Manual.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Support for master entries with TSIG keys has been added to catalog
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein zones, as well as support for allow-query and allow-transfer.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews Added an <span class="command"><strong>isc.rndc</strong></span> Python module, which allows
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews <span class="command"><strong>rndc</strong></span> commands to be sent from Python programs.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews Added support for DynDB, a new interface for loading zone data
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews from an external database, developed by Red Hat for the FreeIPA
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews project. (Thanks in particular to Adam Tkac and Petr
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews Spacek of Red Hat for the contribution.)
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews Unlike the existing DLZ and SDB interfaces, which provide a
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews limited subset of database functionality within BIND —
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein translating DNS queries into real-time database lookups with
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein relatively poor performance and with no ability to handle
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein DNSSEC-signed data — DynDB is able to fully implement
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and extend the database API used natively by BIND.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A DynDB module could pre-load data from an external data
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein source, then serve it with the same performance and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein functionality as conventional BIND zones, and with the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein ability to take advantage of database features not
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein available in BIND, such as multi-master replication.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Fetch quotas are now compiled in by default: they
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein no longer require BIND to be configured with
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>--enable-fetchlimit</strong></span>, as was the case
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein when the feature was introduced in BIND 9.10.3.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein These quotas limit the queries that are sent by recursive
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein resolvers to authoritative servers experiencing denial-of-service
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein attacks. They can both reduce the harm done to authoritative
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein servers and also avoid the resource exhaustion that can be
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein experienced by recursive servers when they are being used as a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein vehicle for such an attack.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="option">fetches-per-server</code> limits the number of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein simultaneous queries that can be sent to any single
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein authoritative server. The configured value is a starting
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein point; it is automatically adjusted downward if the server is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein partially or completely non-responsive. The algorithm used to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein adjust the quota can be configured via the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="option">fetch-quota-params</code> option.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="option">fetches-per-zone</code> limits the number of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein simultaneous queries that can be sent for names within a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein single domain. (Note: Unlike "fetches-per-server", this
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein value is not self-tuning.)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Statistics counters have also been added to track the number
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of queries affected by these quotas.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Added support for <span class="command"><strong>dnstap</strong></span>, a fast,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein flexible method for capturing and logging DNS traffic,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein developed by Robert Edmonds at Farsight Security, Inc.,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein whose assistance is gratefully acknowledged.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein To enable <span class="command"><strong>dnstap</strong></span> at compile time,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the <span class="command"><strong>fstrm</strong></span> and <span class="command"><strong>protobuf-c</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein libraries must be available, and BIND must be configured with
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A new utility <span class="command"><strong>dnstap-read</strong></span> has been added
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to allow <span class="command"><strong>dnstap</strong></span> data to be presented in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a human-readable format.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc dnstap -roll</strong></span> causes <span class="command"><strong>dnstap</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein output files to be rolled like log files -- the most recent output
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein file is renamed with a <code class="filename">.0</code> suffix, the next
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein most recent with <code class="filename">.1</code>, etc. (Note that this
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein only works when <span class="command"><strong>dnstap</strong></span> output is being written
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to a file, not to a UNIX domain socket.) An optional numerical
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein argument specifies how many backup log files to retain; if not
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein specified or set to 0, there is no limit.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc dnstap -reopen</strong></span> simply closes and reopens
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the <span class="command"><strong>dnstap</strong></span> output channel without renaming
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the output file.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein For more information on <span class="command"><strong>dnstap</strong></span>, see
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a class="link" href="http://dnstap.info" target="_top">http://dnstap.info</a>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein New statistics counters have been added to track traffic
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein sizes, as specified in RSSAC002. Query and response
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein message sizes are broken up into ranges of histogram buckets:
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein TCP and UDP queries of size 0-15, 16-31, ..., 272-288, and 288+,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and TCP and UDP responses of size 0-15, 16-31, ..., 4080-4095,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and 4096+. These values can be accessed via the XML and JSON
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein statistics channels at, for example,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a class="link" href="http://localhost:8888/xml/v3/traffic" target="_top">http://localhost:8888/xml/v3/traffic</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a class="link" href="http://localhost:8888/json/v1/traffic" target="_top">http://localhost:8888/json/v1/traffic</a>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Statistics for RSSAC02v3 traffic-volume, traffic-sizes and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein rcode-volume reporting are now collected.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A new DNSSEC key management utility,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dnssec-keymgr</strong></span>, has been added. This tool
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein is meant to run unattended (e.g., under <span class="command"><strong>cron</strong></span>).
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein It reads a policy definition file
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein (default <code class="filename">/etc/dnssec-policy.conf</code>)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and creates or updates DNSSEC keys as necessary to ensure that a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein zone's keys match the defined policy for that zone. New keys are
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein created whenever necessary to ensure rollovers occur correctly.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Existing keys' timing metadata is adjusted as needed to set the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein correct rollover period, prepublication interval, etc. If
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the configured policy changes, keys are corrected automatically.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein See the <span class="command"><strong>dnssec-keymgr</strong></span> man page for full details.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Note: <span class="command"><strong>dnssec-keymgr</strong></span> depends on Python and on
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the Python lex/yacc module, PLY. The other Python-based tools,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dnssec-coverage</strong></span> and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dnssec-checkds</strong></span>, have been
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein refactored and updated as part of this work.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dnssec-keymgr</strong></span> now takes a -r
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <em class="replaceable"><code>randomfile</code></em> option.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein (Many thanks to Sebasti�n
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Castro for his assistance in developing this tool at the IETF
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 95 Hackathon in Buenos Aires, April 2016.)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The serial number of a dynamically updatable zone can
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein now be set using
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc signing -serial <em class="replaceable"><code>number</code></em> <em class="replaceable"><code>zonename</code></em></strong></span>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein This is particularly useful with <code class="option">inline-signing</code>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein zones that have been reset. Setting the serial number to a value
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein larger than that on the slaves will trigger an AXFR-style
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein When answering recursive queries, SERVFAIL responses can now be
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein cached by the server for a limited time; subsequent queries for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the same query name and type will return another SERVFAIL until
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the cache times out. This reduces the frequency of retries
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein when a query is persistently failing, which can be a burden
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein on recursive servers. The SERVFAIL cache timeout is controlled
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein by <code class="option">servfail-ttl</code>, which defaults to 1 second
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and has an upper limit of 30.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The new <span class="command"><strong>rndc nta</strong></span> command can now be used to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein set a "negative trust anchor" (NTA), disabling DNSSEC validation for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a specific domain; this can be used when responses from a domain
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein are known to be failing validation due to administrative error
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein rather than because of a spoofing attack. NTAs are strictly
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein temporary; by default they expire after one hour, but can be
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein configured to last up to one week. The default NTA lifetime
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein can be changed by setting the <code class="option">nta-lifetime</code> in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="filename">named.conf</code>. When added, NTAs are stored in a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein file (<code class="filename"><em class="replaceable"><code>viewname</code></em>.nta</code>)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein in order to persist across restarts of the <span class="command"><strong>named</strong></span> server.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The EDNS Client Subnet (ECS) option is now supported for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein authoritative servers; if a query contains an ECS option then
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein ACLs containing <code class="option">geoip</code> or <code class="option">ecs</code>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein elements can match against the address encoded in the option.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein This can be used to select a view for a query, so that different
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein answers can be provided depending on the client network.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The EDNS EXPIRE option has been implemented on the client
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein side, allowing a slave server to set the expiration timer
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein correctly when transferring zone data from another slave
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A new <code class="option">masterfile-style</code> zone option controls
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the formatting of text zone files: When set to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="literal">full</code>, the zone file will dumped in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein single-line-per-record format.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +ednsopt</strong></span> can now be used to set
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein arbitrary EDNS options in DNS requests.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +ednsflags</strong></span> can now be used to set
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein yet-to-be-defined EDNS flags in DNS requests.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews <span class="command"><strong>dig +[no]ednsnegotiation</strong></span> can now be used enable /
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews disable EDNS version negotiation.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +header-only</strong></span> can now be used to send
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein queries without a question section.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +ttlunits</strong></span> causes <span class="command"><strong>dig</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to print TTL values with time-unit suffixes: w, d, h, m, s for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein weeks, days, hours, minutes, and seconds.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +zflag</strong></span> can be used to set the last
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein unassigned DNS header flag bit. This bit is normally zero.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +dscp=<em class="replaceable"><code>value</code></em></strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein can now be used to set the DSCP code point in outgoing query
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +mapped</strong></span> can now be used to determine
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein if mapped IPv4 addresses can be used.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>nslookup</strong></span> will now look up IPv6 as well
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein as IPv4 addresses by default. [RT #40420]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="option">serial-update-method</code> can now be set to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="literal">date</code>. On update, the serial number will
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein be set to the current date in YYYYMMDDNN format.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dnssec-signzone -N date</strong></span> also sets the serial
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein number to YYYYMMDDNN.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>named -L <em class="replaceable"><code>filename</code></em></strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein causes <span class="command"><strong>named</strong></span> to send log messages to the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein specified file by default instead of to the system log.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The rate limiter configured by the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="option">serial-query-rate</code> option no longer covers
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein NOTIFY messages; those are now separately controlled by
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="option">startup-notify-rate</code> (the latter of which
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein controls the rate of NOTIFY messages sent when the server
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein is first started up or reconfigured).
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The default number of tasks and client objects available
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein for serving lightweight resolver queries have been increased,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and are now configurable via the new <code class="option">lwres-tasks</code>
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews and <code class="option">lwres-clients</code> options in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="filename">named.conf</code>. [RT #35857]
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce Log output to files can now be buffered by specifying
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>buffered yes;</strong></span> when creating a channel.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>delv +tcp</strong></span> will exclusively use TCP when
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews sending queries.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>named</strong></span> will now check to see whether
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein other name server processes are running before starting up.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein This is implemented in two ways: 1) by refusing to start
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein if the configured network interfaces all return "address
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein in use", and 2) by attempting to acquire a lock on a file
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein specified by the <code class="option">lock-file</code> option or
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the <span class="command"><strong>-X</strong></span> command line option. The
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein default lock file is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="filename">/var/run/named/named.lock</code>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Specifying <code class="literal">none</code> will disable the lock
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc delzone</strong></span> can now be applied to zones
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein which were configured in <code class="filename">named.conf</code>;
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein it is no longer restricted to zones which were added by
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc addzone</strong></span>. (Note, however, that
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein this does not edit <code class="filename">named.conf</code>; the zone
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein must be removed from the configuration or it will return
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein when <span class="command"><strong>named</strong></span> is restarted or reloaded.)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc modzone</strong></span> can be used to reconfigure
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a zone, using similar syntax to <span class="command"><strong>rndc addzone</strong></span>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc showzone</strong></span> displays the current
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein configuration for a specified zone.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein When BIND is built with the <span class="command"><strong>lmdb</strong></span> library
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein (Lightning Memory-Mapped Database), <span class="command"><strong>named</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein will store the configuration information for zones
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein that are added via <span class="command"><strong>rndc addzone</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein in a database, rather than in a flat "NZF" file. This
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein dramatically improves performance for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc delzone</strong></span> and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc modzone</strong></span>: deleting or changing
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the contents of a database is much faster than rewriting
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a text file.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein On startup, if <span class="command"><strong>named</strong></span> finds an existing
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein NZF file, it will automatically convert it to the new NZD
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein database format.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein To view the contents of an NZD, or to convert an
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein NZD back to an NZF file (for example, to revert back
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to an earlier version of BIND which did not support the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein NZD format), use the new command <span class="command"><strong>named-nzd2nzf</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Added server-side support for pipelined TCP queries. Clients
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein may continue sending queries via TCP while previous queries are
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein processed in parallel. Responses are sent when they are
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein ready, not necessarily in the order in which the queries were
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein To revert to the former behavior for a particular
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein client address or range of addresses, specify the address prefix
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein in the "keep-response-order" option. To revert to the former
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein behavior for all clients, use "keep-response-order { any; };".
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The new <span class="command"><strong>mdig</strong></span> command is a version of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig</strong></span> that sends multiple pipelined
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein queries and then waits for responses, instead of sending one
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews query and waiting the response before sending the next. [RT #38261]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein To enable better monitoring and troubleshooting of RFC 5011
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein trust anchor management, the new <span class="command"><strong>rndc managed-keys</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein can be used to check status of trust anchors or to force keys
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to be refreshed. Also, the managed-keys data file now has
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein easier-to-read comments. [RT #38458]
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews An <span class="command"><strong>--enable-querytrace</strong></span> configure switch is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein now available to enable very verbose query trace logging. This
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein option can only be set at compile time. This option has a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein negative performance impact and should be used only for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein debugging. [RT #37520]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A new <span class="command"><strong>tcp-only</strong></span> option can be specified
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein in <span class="command"><strong>server</strong></span> statements to force
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>named</strong></span> to connect to the specified
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein server via TCP. [RT #37800]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The <span class="command"><strong>nxdomain-redirect</strong></span> option specifies
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a DNS namespace to use for NXDOMAIN redirection. When a
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews recursive lookup returns NXDOMAIN, a second lookup is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein initiated with the specified name appended to the query
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein name. This allows NXDOMAIN redirection data to be supplied
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein by multiple zones configured on the server, or by recursive
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein queries to other servers. (The older method, using
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a single <span class="command"><strong>type redirect</strong></span> zone, has
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein better average performance but is less flexible.) [RT #37989]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The following types have been implemented: CSYNC, NINFO, RKEY,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein SINK, TA, TALINK.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A new <span class="command"><strong>message-compression</strong></span> option can be
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein used to specify whether or not to use name compression when
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein answering queries. Setting this to <strong class="userinput"><code>no</code></strong>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein results in larger responses, but reduces CPU consumption and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein may improve throughput. The default is <strong class="userinput"><code>yes</code></strong>.
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce A <span class="command"><strong>read-only</strong></span> option is now available in the
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce <span class="command"><strong>controls</strong></span> statement to grant non-destructive
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein control channel access. In such cases, a restricted set of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>rndc</strong></span> commands are allowed, which can
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein report information from <span class="command"><strong>named</strong></span>, but cannot
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein reconfigure or stop the server. By default, the control channel
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein access is <span class="emphasis"><em>not</em></span> restricted to these
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein read-only operations. [RT #40498]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein When loading a signed zone, <span class="command"><strong>named</strong></span> will
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein now check whether an RRSIG's inception time is in the future,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and if so, it will regenerate the RRSIG immediately. This helps
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein when a system's clock needs to be reset backwards.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The new <span class="command"><strong>minimal-any</strong></span> option reduces the size
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of answers to UDP queries for type ANY by implementing one of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the strategies in "draft-ietf-dnsop-refuse-any": returning
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce a single arbitrarily-selected RRset that matches the query
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce name rather than returning all of the matching RRsets.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Thanks to Tony Finch for the contribution. [RT #41615]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>named</strong></span> now provides feedback to the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein owners of zones which have trust anchors configured
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein (<span class="command"><strong>trusted-keys</strong></span>,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>managed-keys</strong></span>, <span class="command"><strong>dnssec-validation
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein auto;</strong></span> and <span class="command"><strong>dnssec-lookaside auto;</strong></span>)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein by sending a daily query which encodes the keyids of the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein configured trust anchors for the zone. This is controlled
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein by <span class="command"><strong>trust-anchor-telemetry</strong></span> and defaults
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce<a name="relnotes_changes"></a>Feature Changes</h3></div></div></div>
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The logging format used for <span class="command"><strong>querylog</strong></span> has been
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein altered. It now includes an additional field indicating the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein address in memory of the client object processing the query.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The ISC DNSSEC Lookaside Validation (DLV) service is scheduled
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to be disabled in 2017. A warning is now logged when
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>named</strong></span> is configured to use this service,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein either explicitly or via <code class="option">dnssec-lookaside auto;</code>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The timers returned by the statistics channel (indicating current
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein time, server boot time, and most recent reconfiguration time) are
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein now reported with millisecond accuracy. [RT #40082]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Updated the compiled-in addresses for H.ROOT-SERVERS.NET
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein ACLs containing <span class="command"><strong>geoip asnum</strong></span> elements were
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein not correctly matched unless the full organization name was
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein specified in the ACL (as in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>geoip asnum "AS1234 Example, Inc.";</strong></span>).
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein They can now match against the AS number alone (as in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>geoip asnum "AS1234";</strong></span>).
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein When using native PKCS#11 cryptography (i.e.,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>configure --enable-native-pkcs11</strong></span>) HSM PINs
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of up to 256 characters can now be used.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein NXDOMAIN responses to queries of type DS are now cached separately
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein from those for other types. This helps when using "grafted" zones
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of type forward, for which the parent zone does not contain a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein delegation, such as local top-level domains. Previously a query
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of type DS for such a zone could cause the zone apex to be cached
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein as NXDOMAIN, blocking all subsequent queries. (Note: This
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein change is only helpful when DNSSEC validation is not enabled.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein "Grafted" zones without a delegation in the parent are not a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein recommended configuration.)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Update forwarding performance has been improved by allowing
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a single TCP connection to be shared between multiple updates.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein By default, <span class="command"><strong>nsupdate</strong></span> will now check
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the correctness of hostnames when adding records of type
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A, AAAA, MX, SOA, NS, SRV or PTR. This behavior can be
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein disabled with <span class="command"><strong>check-names no</strong></span>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Added support for OPENPGPKEY type.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The names of the files used to store managed keys and added
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein zones for each view are no longer based on the SHA256 hash
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of the view name, except when this is necessary because the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein view name contains characters that would be incompatible with use
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein as a file name. For views whose names do not contain forward
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein slashes ('/'), backslashes ('\'), or capital letters - which
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein could potentially cause namespace collision problems on
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein case-insensitive filesystems - files will now be named
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein after the view (for example, <code class="filename">internal.mkeys</code>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein or <code class="filename">external.nzf</code>). However, to ensure
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein consistent behavior when upgrading, if a file using the old
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein name format is found to exist, it will continue to be used.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein "rndc" can now return text output of arbitrary size to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the caller. (Prior to this, certain commands such as
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein "rndc tsig-list" and "rndc zonestatus" could return
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein truncated output.)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Errors reported when running <span class="command"><strong>rndc addzone</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein (e.g., when a zone file cannot be loaded) have been clarified
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to make it easier to diagnose problems.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein When encountering an authoritative name server whose name is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein an alias pointing to another name, the resolver treats
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein this as an error and skips to the next server. Previously
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein this happened silently; now the error will be logged to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the newly-created "cname" log category.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein If <span class="command"><strong>named</strong></span> is not configured to validate
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein answers, then allow fallback to plain DNS on timeout even when
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein we know the server supports EDNS. This will allow the server to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein potentially resolve signed queries when TCP is being
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Large inline-signing changes should be less disruptive.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Signature generation is now done incrementally; the number
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of signatures to be generated in each quantum is controlled
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein by "sig-signing-signatures <em class="replaceable"><code>number</code></em>;".
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The experimental SIT option (code point 65001) of BIND
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 9.10.0 through BIND 9.10.2 has been replaced with the COOKIE
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein option (code point 10). It is no longer experimental, and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein is sent by default, by both <span class="command"><strong>named</strong></span> and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig</strong></span>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The SIT-related named.conf options have been marked as
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein obsolete, and are otherwise ignored.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein When <span class="command"><strong>dig</strong></span> receives a truncated (TC=1)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein response or a BADCOOKIE response code from a server, it
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein will automatically retry the query using the server COOKIE
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein that was returned by the server in its initial response.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Retrieving the local port range from net.ipv4.ip_local_port_range
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein on Linux is now supported.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A new <code class="option">nsip-wait-recurse</code> directive has been
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein added to RPZ, specifying whether to look up unknown name server
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein IP addresses and wait for a response before applying RPZ-NSIP rules.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The default is <strong class="userinput"><code>yes</code></strong>. If set to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <strong class="userinput"><code>no</code></strong>, <span class="command"><strong>named</strong></span> will only
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein apply RPZ-NSIP rules to servers whose addresses are already cached.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The addresses will be looked up in the background so the rule can
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein be applied on subsequent queries. This improves performance when
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the cache is cold, at the cost of temporary imprecision in applying
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein policy directives. [RT #35009]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Within the <code class="option">response-policy</code> option, it is now
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein possible to configure RPZ rewrite logging on a per-zone basis
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein using the <code class="option">log</code> clause.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The default preferred glue is now the address type of the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein transport the query was received over.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein On machines with 2 or more processors (CPU), the default value
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein for the number of UDP listeners has been changed to the number
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of detected processors minus one.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Zone transfers now use smaller message sizes to improve
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein message compression. This results in reduced network usage.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Added support for the AVC resource record type (Application
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Visibility and Control).
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Changed <span class="command"><strong>rndc reconfig</strong></span> behavior so that newly
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein added zones are loaded asynchronously and the loading does not
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein block the server.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>minimal-responses</strong></span> now takes two new
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein arguments: <code class="option">no-auth</code> suppresses
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews populating the authority section but not the additional
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews section; <code class="option">no-auth-recursive</code>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews does the same but only when answering recursive queries.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein At server startup time, the queues for processing
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein notify and zone refresh queries are now processed in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein LIFO rather than FIFO order, to speed up
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein loading of newly added zones. [RT #42825]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein When answering queries of type MX or SRV, TLSA records for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the target name are now included in the additional section
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to speed up DANE processing. [RT #42894]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>named</strong></span> can now use the TCP Fast Open
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein mechanism on the server side, if supported by the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein local operating system. [RT #42866]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="relnotes_bugs"></a>Bug Fixes</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Fixed a crash when calling <span class="command"><strong>rndc stats</strong></span> on some
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Windows builds: some Visual Studio compilers generate code that
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein crashes when the "%z" printf() format specifier is used. [RT #42380]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Windows installs were failing due to triggering UAC without
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the installation binary being signed.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A change in the internal binary representation of the RBT database
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein node structure enabled a race condition to occur (especially when
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein BIND was built with certain compilers or optimizer settings),
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein leading to inconsistent database state which caused random
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein assertion failures. [RT #42380]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="end_of_life"></a>End of Life</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The end of life for BIND 9.11 is yet to be determined but
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein will not be before BIND 9.13.0 has been released for 6 months.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a class="link" href="https://www.isc.org/downloads/software-support-policy/" target="_top">https://www.isc.org/downloads/software-support-policy/</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="relnotes_thanks"></a>Thank You</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Thank you to everyone who assisted us in making this release possible.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein If you would like to contribute to ISC to assist us in continuing to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein make quality open source software, please visit our donations page at
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a class="link" href="http://www.isc.org/donate/" target="_top">http://www.isc.org/donate/</a>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a accesskey="p" href="Bv9ARM.ch08.html">Prev</a>�</td>
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="40%" align="left" valign="top">Chapter�8.�Troubleshooting�</td>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="40%" align="right" valign="top">�Appendix�B.�A Brief History of the <acronym class="acronym">DNS</acronym> and <acronym class="acronym">BIND</acronym>
3b4098640dd85040270f39b9a5ee5e22de99d3d6Mark Andrews<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.0rc3</p>