Bv9ARM.ch09.html revision 8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4
11e9368a226272085c337e9e74b79808c16fbdbaTinderbox User - Copyright (C) 2004-2015 Internet Systems Consortium, Inc. ("ISC")
75c0816e8295e180f4bc7f10db3d0d880383bc1cMark Andrews - Copyright (C) 2000-2003 Internet Software Consortium.
4a14ce5ba00ab7bc55c99ffdcf59c7a4ab902721Automatic Updater - Permission to use, copy, modify, and/or distribute this software for any
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - purpose with or without fee is hereby granted, provided that the above
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - copyright notice and this permission notice appear in all copies.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - PERFORMANCE OF THIS SOFTWARE.
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<link rel="next" href="Bv9ARM.ch10.html" title="Appendix�B.�A Brief History of the DNS and BIND">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<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 9.11.0b1</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>
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User<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>
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_port">Porting 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>
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User<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">
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User<a name="id-1.10.2"></a>Release Notes for BIND Version 9.11.0b1</h2></div></div></div>
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User<div class="titlepage"><div><div><h3 class="title">
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User<a name="relnotes_intro"></a>Introduction</h3></div></div></div>
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User BIND 9.11.0 is a new feature release of BIND, still under development.
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User This document summarizes new features and functional changes that
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User have been introduced on this branch. With each development
1879ff49326b49a9e4eadaca193c631409bf8575Tinderbox User release leading up to the final BIND 9.11.0 release, this document
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein will be updated with additional features added and bugs fixed.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="relnotes_download"></a>Download</h3></div></div></div>
a1ad6695ed6f988406cf155aa26376f84f73bcb9Automatic Updater The latest versions of BIND 9 software can always be found at
c0cbdeedb5e119c640f098da1851cb1b9adcc739Tinderbox User <a class="link" href="http://www.isc.org/downloads/" target="_top">http://www.isc.org/downloads/</a>.
a1ad6695ed6f988406cf155aa26376f84f73bcb9Automatic Updater There you will find additional information about each release,
44d0f0256fbdce130a18655023c3b06bacacbd61Automatic Updater source code, and pre-compiled versions for Microsoft Windows
c0cbdeedb5e119c640f098da1851cb1b9adcc739Tinderbox User operating systems.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<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
c0cbdeedb5e119c640f098da1851cb1b9adcc739Tinderbox User 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
c0cbdeedb5e119c640f098da1851cb1b9adcc739Tinderbox User licensed software (e.g. BIND) and distribute them outside
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein your organization, that you publish those changes under that
c0cbdeedb5e119c640f098da1851cb1b9adcc739Tinderbox User same license. It does not require that you publish or disclose
c0cbdeedb5e119c640f098da1851cb1b9adcc739Tinderbox User anything other than the changes you made to our software.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein This new requirement will not affect anyone who is using BIND
507151045be68c671ffd4e2f37e17cdfa0376fc4Automatic Updater without redistributing it, nor anyone redistributing it without
507151045be68c671ffd4e2f37e17cdfa0376fc4Automatic Updater changes, therefore this change will be without consequence
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein for most individuals and organizations who are using BIND.
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews Those unsure whether or not the license change affects their
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews 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">
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews<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; "><li class="listitem"><p>
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; ">
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews 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.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Added rndc python module.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Added support for DynDB, a new interface for loading zone data
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein from an external database, developed by Red Hat for the FreeIPA
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 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 —
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews translating DNS queries into real-time database lookups with
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews relatively poor performance and with no ability to handle
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews DNSSEC-signed data — DynDB is able to fully implement
b05bdb520d83f7ecaad708fe305268c3420be01dMark Andrews and extend the database API used natively by BIND.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews A DynDB module could pre-load data from an external data
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews source, then serve it with the same performance and
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews functionality as conventional BIND zones, and with the
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews ability to take advantage of database features not
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews available in BIND, such as multi-master replication.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein New quotas have been added to limit the queries that are
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein sent by recursive resolvers to authoritative servers
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein experiencing denial-of-service attacks. When configured,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein these options 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; ">
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater <code class="option">fetches-per-server</code> limits the number of
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater simultaneous queries that can be sent to any single
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater authoritative server. The configured value is a starting
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater point; it is automatically adjusted downward if the server is
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater partially or completely non-responsive. The algorithm used to
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater adjust the quota can be configured via the
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater <code class="option">fetch-quota-params</code> option.
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater <code class="option">fetches-per-zone</code> limits the number of
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater simultaneous queries that can be sent for names within a
afb33f777af856f8c3382604a7a8ffdfe2b512c5Automatic Updater 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-reopen</strong></span> can be used reopen
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein dnstap output files after renaming them.
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>.
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews New statistics counters have been added to track traffic
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews sizes, as specified in RSSAC002. Query and response
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews message sizes are broken up into ranges of histogram buckets:
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews TCP and UDP queries of size 0-15, 16-31, ..., 272-288, and 288+,
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews and TCP and UDP responses of size 0-15, 16-31, ..., 4080-4095,
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews and 4096+. These values can be accessed via the XML and JSON
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews 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>
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews <a class="link" href="http://localhost:8888/json/v1/traffic" target="_top">http://localhost:8888/json/v1/traffic</a>.
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews Statistics for RSSAC02v3 traffic-volume, traffic-sizes and
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews 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</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.
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User Note: <span class="command"><strong>dnssec-keymgr</strong></span> depends on Python and on
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User the Python lex/yacc module, PLY. The other Python-based tools,
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User <span class="command"><strong>dnssec-coverage</strong></span> and
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User <span class="command"><strong>dnssec-checkds</strong></span>, have been
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User refactored and updated as part of this work.
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User <span class="command"><strong>dnssec-keymgr</strong></span> now takes a -r
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User <em class="replaceable"><code>randomfile</code></em> option.
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User (Many thanks to Sebasti�n
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User Castro for his assistance in developing this tool at the IETF
3a32ac2a720653083c7a22cb654b86c398f6d4c8Tinderbox User 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
bea931e17b7567f09107f93ab7e25c7f00abeb9cMark Andrews larger than that on the slaves will trigger an AXFR-style
b05bdb520d83f7ecaad708fe305268c3420be01dMark Andrews 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
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews authoritative servers; if a query contains an ECS option then
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews ACLs containing <code class="option">geoip</code> or <code class="option">ecs</code>
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews elements can match against the address encoded in the option.
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews This can be used to select a view for a query, so that different
ceeb18e6907a10547859faa340ecad83bedae90cMark Andrews 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.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>dig +[no]ednsnegotiation</strong></span> can now be used enable /
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 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 <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
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater specified file by default instead of to the system log.
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater The rate limiter configured by the
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater <code class="option">serial-query-rate</code> option no longer covers
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater NOTIFY messages; those are now separately controlled by
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater <code class="option">notify-rate</code> and
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater <code class="option">startup-notify-rate</code> (the latter of which
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater controls the rate of NOTIFY messages sent when the server
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater is first started up or reconfigured).
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater The default number of tasks and client objects available
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater for serving lightweight resolver queries have been increased,
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater and are now configurable via the new <code class="option">lwres-tasks</code>
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater and <code class="option">lwres-clients</code> options in
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater <code class="filename">named.conf</code>. [RT #35857]
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater Log output to files can now be buffered by specifying
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater <span class="command"><strong>buffered yes;</strong></span> when creating a channel.
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater <span class="command"><strong>delv +tcp</strong></span> will exclusively use TCP when
984c2e9f76e66e86f7d9aca99a774836ddf196eaAutomatic Updater 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
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User default lock file is
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User <code class="filename">/var/run/named/named.lock</code>.
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User Specifying <code class="literal">none</code> will disable the lock
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User <span class="command"><strong>rndc delzone</strong></span> can now be applied to zones
bae169ea64bf736d6ea6074c2af3d7c117079972Tinderbox User which were configured in <code class="filename">named.conf</code>;
bae169ea64bf736d6ea6074c2af3d7c117079972Tinderbox User it is no longer restricted to zones which were added by
bae169ea64bf736d6ea6074c2af3d7c117079972Tinderbox User <span class="command"><strong>rndc addzone</strong></span>. (Note, however, that
bae169ea64bf736d6ea6074c2af3d7c117079972Tinderbox User this does not edit <code class="filename">named.conf</code>; the zone
bae169ea64bf736d6ea6074c2af3d7c117079972Tinderbox User must be removed from the configuration or it will return
bae169ea64bf736d6ea6074c2af3d7c117079972Tinderbox User when <span class="command"><strong>named</strong></span> is restarted or reloaded.)
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User <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>.
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User <span class="command"><strong>rndc showzone</strong></span> displays the current
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews configuration for a specified zone.
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User Added server-side support for pipelined TCP queries. Clients
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User may continue sending queries via TCP while previous queries are
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User processed in parallel. Responses are sent when they are
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein ready, not necessarily in the order in which the queries were
bae169ea64bf736d6ea6074c2af3d7c117079972Tinderbox User To revert to the former behavior for a particular
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User client address or range of addresses, specify the address prefix
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User in the "keep-response-order" option. To revert to the former
dad65f7c93330a10705384739dff3a6d4dfe1e70Tinderbox User 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
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 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]
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein An <span class="command"><strong>--enable-querytrace</strong></span> configure switch is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein now available to enable very verbose query tracelogging. 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
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 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.
11e9368a226272085c337e9e74b79808c16fbdbaTinderbox User 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
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce may improve throughput. The default is <strong class="userinput"><code>yes</code></strong>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein A <span class="command"><strong>read-only</strong></span> option is now available in the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="command"><strong>controls</strong></span> statement to grant non-destructive
11e9368a226272085c337e9e74b79808c16fbdbaTinderbox User 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
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews 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
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein a single arbitrarily-selected RRset that matches the query
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein name rather than returning all of the matching RRsets.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Thanks to Tony Finch for the contribution. [RT #41615]
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="relnotes_changes"></a>Feature Changes</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The ISC DNSSEC Lookaside Validation (DLV) service is scheduled
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to be disabled in 2017. A warning is now logged when
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews <span class="command"><strong>named</strong></span> is configured to use this service,
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews either explicitly or via <code class="option">dnssec-lookaside auto;</code>.
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews The timers returned by the statistics channel (indicating current
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews time, server boot time, and most recent reconfiguration time) are
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews now reported with millisecond accuracy. [RT #40082]
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews 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
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews specified in the ACL (as in
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews <span class="command"><strong>geoip asnum "AS1234 Example, Inc.";</strong></span>).
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews They can now match against the AS number alone (as in
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews <span class="command"><strong>geoip asnum "AS1234";</strong></span>).
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews When using native PKCS#11 cryptography (i.e.,
68b30890ebd441a6a1ae3fdf71744d07d02cd030Mark Andrews <span class="command"><strong>configure --enable-native-pkcs11</strong></span>) HSM PINs
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews of up to 256 characters can now be used.
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews NXDOMAIN responses to queries of type DS are now cached separately
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User from those for other types. This helps when using "grafted" zones
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User of type forward, for which the parent zone does not contain a
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User delegation, such as local top-level domains. Previously a query
9c6a5d1f22f972232d7a9fd5c5fa64f10bacbdffAutomatic Updater of type DS for such a zone could cause the zone apex to be cached
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews as NXDOMAIN, blocking all subsequent queries. (Note: This
035992291cb70ec3be4046fcea921b4a6acb1c77Mark Andrews 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.)
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews Update forwarding performance has been improved by allowing
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews a single TCP connection to be shared between multiple updates.
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews By default, <span class="command"><strong>nsupdate</strong></span> will now check
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews the correctness of hostnames when adding records of type
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews A, AAAA, MX, SOA, NS, SRV or PTR. This behavior can be
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews disabled with <span class="command"><strong>check-names no</strong></span>.
4556ad3a270bf049b3225433a402666aaffe3c36Mark Andrews 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
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User as a file name. For views whose names do not contain forward
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein slashes ('/'), backslashes ('\'), or capital letters - which
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews could potentially cause namespace collision problems on
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein case-insensitive filesystems - files will now be named
bea931e17b7567f09107f93ab7e25c7f00abeb9cMark Andrews 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.
d9184858dd5d7677050a813d444c281c56f697aaTinderbox User "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
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews truncated output.)
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews 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.
bea931e17b7567f09107f93ab7e25c7f00abeb9cMark Andrews If <span class="command"><strong>named</strong></span> is not configured to validate
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews 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
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce option (code point 10). It is no longer experimental, and
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce is sent by default, by both <span class="command"><strong>named</strong></span> and
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce <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 A alternative NXDOMAIN redirect method (nxdomain-redirect)
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce which allows the redirect information to be looked up from
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce a namespace on the Internet rather than requiring a zone
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to be configured on the server is now available.
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
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce the cache is cold, at the cost of temporary imprecision in applying
f293a69bcd1c1dd7bdac8f4102fc2398b9e475c8Eric Luce 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<div class="titlepage"><div><div><h3 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="relnotes_port"></a>Porting Changes</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
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>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.0b1</p>