+ --- 9.11.24 released ---
+
5516. [func] The default EDNS buffer size has been changed from 4096
to 1232 bytes. [GL #2183]
BIND 9.11.23 is a maintenance release.
+BIND 9.11.24
+
+BIND 9.11.24 is a maintenance release.
+
Building BIND
Minimally, BIND requires a UNIX or Linux system with an ANSI C compiler,
BIND 9.11.23 is a maintenance release.
+#### BIND 9.11.24
+
+BIND 9.11.24 is a maintenance release.
+
### <a name="build"/> Building BIND
Minimally, BIND requires a UNIX or Linux system with an ANSI C compiler,
docdir
oldincludedir
includedir
-runstatedir
localstatedir
sharedstatedir
sysconfdir
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
- -runstatedir | --runstatedir | --runstatedi | --runstated \
- | --runstate | --runstat | --runsta | --runst | --runs \
- | --run | --ru | --r)
- ac_prev=runstatedir ;;
- -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
- | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
- | --run=* | --ru=* | --r=*)
- runstatedir=$ac_optarg ;;
-
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
- libdir localedir mandir runstatedir
+ libdir localedir mandir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
- --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
<p>
For more detailed information about the design of the DNS and
the DNS protocol, please refer to the standards documents listed in
- <a class="xref" href="Bv9ARM.ch11.html#rfcs" title="Request for Comments (RFCs)">the section called “Request for Comments (RFCs)”</a>.
+ <a class="xref" href="Bv9ARM.ch11.html#rfcs" title="Requests for Comments (RFCs)">the section called “Requests for Comments (RFCs)”</a>.
</p>
</div>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
This sets the maximum size of UDP responses that are
sent to queries without a valid server COOKIE. A value
below 128 is silently raised to 128. The default
- value is 4096, but the <span class="command"><strong>max-udp-size</strong></span>
+ value is 1232, but the <span class="command"><strong>max-udp-size</strong></span>
option may further limit the response size.
</p>
</dd>
<div class="titlepage"><div><div><h4 class="title">
<a name="rrset_ordering"></a>RRset Ordering</h4></div></div></div>
+ <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
+<h3 class="title">Note</h3>
+ <p>
+ While alternating the order of records in a DNS response between
+ subsequent queries is a known load distribution technique, certain
+ caveats apply (mostly stemming from caching) which usually make it
+ a suboptimal choice for load balancing purposes when used on its
+ own.
+ </p>
+ </div>
+
<p>
- When multiple records are returned in an answer, it may be
- useful to configure the order of the records placed into the
- response.
- The <span class="command"><strong>rrset-order</strong></span> statement permits
- configuration
- of the ordering of the records in a multiple-record response.
- See also the <span class="command"><strong>sortlist</strong></span> statement,
- <a class="xref" href="Bv9ARM.ch06.html#the_sortlist_statement" title="The sortlist Statement">the section called “The <span class="command"><strong>sortlist</strong></span> Statement”</a>.
+ The <span class="command"><strong>rrset-order</strong></span> statement permits configuration
+ of the ordering of the records in a multiple-record response. See
+ also: <a class="xref" href="Bv9ARM.ch06.html#the_sortlist_statement" title="The sortlist Statement">the section called “The <span class="command"><strong>sortlist</strong></span> Statement”</a>.
</p>
<p>
- An <span class="command"><strong>order_spec</strong></span> is defined as
- follows:
+ Each rule in an <span class="command"><strong>rrset-order</strong></span> statement is defined
+ as follows:
</p>
+
<p>
- [<span class="optional">class <em class="replaceable"><code>class_name</code></em></span>]
- [<span class="optional">type <em class="replaceable"><code>type_name</code></em></span>]
- [<span class="optional">name <em class="replaceable"><code>"domain_name"</code></em></span>]
- order <em class="replaceable"><code>ordering</code></em>
+ [<span class="optional">class <em class="replaceable"><code><class_name></code></em></span>]
+ [<span class="optional">type <em class="replaceable"><code><type_name></code></em></span>]
+ [<span class="optional">name <em class="replaceable"><code>"<domain_name>"</code></em></span>]
+ order <em class="replaceable"><code><ordering></code></em>
+ </p>
+
+ <p>
+ The default qualifiers for each rule are:
+ </p>
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+ If no <span class="command"><strong>class</strong></span> is specified, the default is
+ <span class="command"><strong>ANY</strong></span>.
+ </li>
+<li class="listitem">
+ If no <span class="command"><strong>type</strong></span> is specified, the default is
+ <span class="command"><strong>ANY</strong></span>.
+ </li>
+<li class="listitem">
+ If no <span class="command"><strong>name</strong></span> is specified, the default is
+ <span class="command"><strong>*</strong></span> (asterisk).
+ </li>
+</ul></div>
+<p>
</p>
+
<p>
- If no class is specified, the default is <span class="command"><strong>ANY</strong></span>.
- If no type is specified, the default is <span class="command"><strong>ANY</strong></span>.
- If no name is specified, the default is "<span class="command"><strong>*</strong></span>" (asterisk).
+ <em class="replaceable"><code><domain_name></code></em> only matches the name
+ itself, not any of its subdomains. To make a rule match all
+ subdomains of a given name, a wildcard name
+ (<em class="replaceable"><code>*.<domain_name></code></em>) must be used.
+ Note that <em class="replaceable"><code>*.<domain_name></code></em> does
+ <span class="emphasis"><em>not</em></span> match
+ <em class="replaceable"><code><domain_name></code></em> itself; to specify
+ RRset ordering for a name and all of its subdomains, two separate
+ rules must be defined: one for
+ <em class="replaceable"><code><domain_name></code></em> and one for
+ <em class="replaceable"><code>*.<domain_name></code></em>.
</p>
+
<p>
- The legal values for <span class="command"><strong>ordering</strong></span> are:
+ The legal values for <em class="replaceable"><code><ordering></code></em>
+ are:
</p>
+
+ <div class="variablelist"><dl class="variablelist">
+<dt><span class="term"><span class="command"><strong>fixed</strong></span></span></dt>
+<dd>
+ <p>
+ Records are returned in the order they are defined in the zone
+ file.
+ </p>
+ <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
+<h3 class="title">Note</h3>
+ <p>
+ The <span class="command"><strong>fixed</strong></span> option is only available if
+ BIND is configured with
+ <span class="command"><strong>--enable-fixed-rrset</strong></span> at compile time.
+ </p>
+ </div>
+ </dd>
+<dt><span class="term"><span class="command"><strong>random</strong></span></span></dt>
+<dd>
+ <p>
+ Records are returned in a random order.
+ </p>
+ </dd>
+<dt><span class="term"><span class="command"><strong>cyclic</strong></span></span></dt>
+<dd>
+ <p>
+ Records are returned in a cyclic round-robin order, rotating
+ by one record per query.
+ </p>
+ </dd>
+</dl></div>
+
+ <p>
+ By default, records are returned in random order.
+ </p>
+
+ <p>
+ Note that if multiple <span class="command"><strong>rrset-order</strong></span> statements are
+ present in the configuration file (at both the
+ <span class="command"><strong>options</strong></span> and <span class="command"><strong>view</strong></span> levels), they
+ are <span class="emphasis"><em>not</em></span> combined; instead, the more-specific
+ one (<span class="command"><strong>view</strong></span>) replaces the less-specific one
+ (<span class="command"><strong>options</strong></span>).
+ </p>
+
+ <p>
+ If multiple rules within a single <span class="command"><strong>rrset-order</strong></span>
+ statement match a given RRset, the first matching rule is applied.
+ </p>
+
+ <p>
+ Example:
+ </p>
+
+<pre class="programlisting">rrset-order {
+ type A name "foo.isc.org" order random;
+ type AAAA name "foo.isc.org" order cyclic;
+ name "bar.isc.org" order fixed;
+ name "*.bar.isc.org" order random;
+ name "*.baz.isc.org" order cyclic;
+};
+</pre>
+
+ <p>
+ With the above configuration, the following RRset ordering is used:
+ </p>
+
<div class="informaltable">
<table border="1">
<colgroup>
-<col width="0.750in" class="1">
-<col width="3.750in" class="2">
+<col>
+<col>
+<col>
</colgroup>
+<thead><tr>
+<th><p>QNAME</p></th>
+<th><p>QTYPE</p></th>
+<th><p>RRset Order</p></th>
+</tr></thead>
<tbody>
<tr>
-<td>
- <p><span class="command"><strong>fixed</strong></span></p>
- </td>
-<td>
- <p>
- Records are returned in the order they
- are defined in the zone file.
- </p>
- </td>
+<td><p><strong class="userinput"><code>foo.isc.org</code></strong></p></td>
+<td><p><strong class="userinput"><code>A</code></strong></p></td>
+<td><p><span class="command"><strong>random</strong></span></p></td>
</tr>
<tr>
-<td>
- <p><span class="command"><strong>random</strong></span></p>
- </td>
-<td>
- <p>
- Records are returned in a random order.
- </p>
- </td>
+<td><p><strong class="userinput"><code>foo.isc.org</code></strong></p></td>
+<td><p><strong class="userinput"><code>AAAA</code></strong></p></td>
+<td><p><span class="command"><strong>cyclic</strong></span></p></td>
</tr>
<tr>
-<td>
- <p><span class="command"><strong>cyclic</strong></span></p>
- </td>
-<td>
- <p>
- Records are returned in a cyclic round-robin order, rotating by one record per query.
- </p>
- <p>
- If <acronym class="acronym">BIND</acronym> is configured with the
- "--enable-fixed-rrset" option at compile time,
- the initial ordering of the RRset matches the
- one specified in the zone file.
- </p>
- </td>
+<td><p><strong class="userinput"><code>foo.isc.org</code></strong></p></td>
+<td><p><strong class="userinput"><code>TXT</code></strong></p></td>
+<td><p><span class="command"><strong>random</strong></span></p></td>
+</tr>
+<tr>
+<td><p><strong class="userinput"><code>sub.foo.isc.org</code></strong></p></td>
+<td><p>all</p></td>
+<td><p><span class="command"><strong>random</strong></span></p></td>
+</tr>
+<tr>
+<td><p><strong class="userinput"><code>bar.isc.org</code></strong></p></td>
+<td><p>all</p></td>
+<td><p><span class="command"><strong>fixed</strong></span></p></td>
+</tr>
+<tr>
+<td><p><strong class="userinput"><code>sub.bar.isc.org</code></strong></p></td>
+<td><p>all</p></td>
+<td><p><span class="command"><strong>random</strong></span></p></td>
+</tr>
+<tr>
+<td><p><strong class="userinput"><code>baz.isc.org</code></strong></p></td>
+<td><p>all</p></td>
+<td><p><span class="command"><strong>random</strong></span></p></td>
+</tr>
+<tr>
+<td><p><strong class="userinput"><code>sub.baz.isc.org</code></strong></p></td>
+<td><p>all</p></td>
+<td><p><span class="command"><strong>cyclic</strong></span></p></td>
</tr>
</tbody>
</table>
</div>
- <p>
- For example:
- </p>
-<pre class="programlisting">rrset-order {
- class IN type A name "host.example.com" order random;
- order cyclic;
-};
-</pre>
-
- <p>
- causes any responses for type A records in class IN, that
- have "<code class="literal">host.example.com</code>" as a
- suffix, to always be returned
- in random order. All other records are returned in cyclic order.
- </p>
- <p>
- If multiple <span class="command"><strong>rrset-order</strong></span> statements
- appear, they are not combined; the last one applies.
- </p>
- <p>
- By default, records are returned in random order.
- </p>
-
- <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
-<h3 class="title">Note</h3>
- <p>
- In this release of <acronym class="acronym">BIND</acronym> 9, the
- <span class="command"><strong>rrset-order</strong></span> statement does not support
- "fixed" ordering by default. Fixed ordering can be enabled
- at compile time by specifying "--enable-fixed-rrset" on
- the "configure" command line.
- </p>
- </div>
</div>
<div class="section">
authoritative servers in response to recursive queries.
Valid values are 512 to 4096; values outside this range
are silently adjusted to the nearest value within
- it. The default value is 4096.
+ it. The default value is 1232.
</p>
<p>
The usual reason for setting
<span class="command"><strong>named</strong></span> sends, in bytes.
Valid values are 512 to 4096; values outside this
range are silently adjusted to the nearest
- value within it. The default value is 4096.
+ value within it. The default value is 1232.
</p>
<p>
This value applies to responses sent by a server; to
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
<div class="toc">
<p><b>Table of Contents</b></p>
<dl class="toc">
-<dt><span class="section"><a href="Bv9ARM.ch09.html#id-1.10.2">Release Notes for BIND Version 9.11.23</a></span></dt>
+<dt><span class="section"><a href="Bv9ARM.ch09.html#id-1.10.2">Release Notes for BIND Version 9.11.24</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_intro">Introduction</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_download">Download</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_license">License Change</a></span></dt>
+<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.24">Notes for BIND 9.11.24</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.23">Notes for BIND 9.11.23</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.22">Notes for BIND 9.11.22</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.21">Notes for BIND 9.11.21</a></span></dt>
</div>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="id-1.10.2"></a>Release Notes for BIND Version 9.11.23</h2></div></div></div>
+<a name="id-1.10.2"></a>Release Notes for BIND Version 9.11.24</h2></div></div></div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
+<a name="relnotes-9.11.24"></a>Notes for BIND 9.11.24</h3></div></div></div>
+
+ <div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="relnotes-9.11.24-changes"></a>Feature Changes</h4></div></div></div>
+ <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+ <p>
+ DNS Flag Day 2020: The default EDNS buffer size has been changed from
+ 4096 to 1232 bytes. According to measurements done by multiple
+ parties, this should not cause any operational problems as most of
+ the Internet "core" is able to cope with IP message sizes between
+ 1400-1500 bytes; the 1232 size was picked as a conservative minimal
+ number that could be changed by the DNS operator to an estimated path
+ MTU minus the estimated header space. In practice, the smallest MTU
+ witnessed in the operational DNS community is 1500 octets, the
+ maximum Ethernet payload size, so a useful default for maximum
+ DNS/UDP payload size on reliable networks would be 1400 bytes.
+ [GL #2183]
+ </p>
+ </li></ul></div>
+ </div>
+
+ <div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="relnotes-9.11.24-bugs"></a>Bug Fixes</h4></div></div></div>
+ <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+ <p>
+ <span class="command"><strong>named</strong></span> reported an invalid memory size when running
+ in an environment that did not properly report the number of available
+ memory pages and/or the size of each memory page. [GL #2166]
+ </p>
+ </li>
+<li class="listitem">
+ <p>
+ With multiple forwarders configured, <span class="command"><strong>named</strong></span> could
+ fail the <code class="code">REQUIRE(msg->state == (-1))</code> assertion in
+ <code class="filename">lib/dns/message.c</code>, causing it to crash. This has
+ been fixed. [GL #2124]
+ </p>
+ </li>
+</ul></div>
+ </div>
+
+</div>
+ <div class="section">
+<div class="titlepage"><div><div><h3 class="title">
<a name="relnotes-9.11.23"></a>Notes for BIND 9.11.23</h3></div></div></div>
<div class="section">
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
<dt><span class="section"><a href="Bv9ARM.ch11.html#ipv6addresses">IPv6 addresses (AAAA)</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch11.html#bibliography">Bibliography (and Suggested Reading)</a></span></dt>
<dd><dl>
-<dt><span class="section"><a href="Bv9ARM.ch11.html#rfcs">Request for Comments (RFCs)</a></span></dt>
+<dt><span class="section"><a href="Bv9ARM.ch11.html#rfcs">Requests for Comments (RFCs)</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch11.html#internet_drafts">Internet Drafts</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch11.html#more_about_bind">Other Documents About <acronym class="acronym">BIND</acronym></a></span></dt>
</dl></dd>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
-<a name="rfcs"></a>Request for Comments (RFCs)</h3></div></div></div>
+<a name="rfcs"></a>Requests for Comments (RFCs)</h3></div></div></div>
<p>
Specification documents for the Internet protocol suite, including
Network Services</i>. </span>
<span class="pubdate">October 1997. </span>
</p>
+</div>
+ <div class="biblioentry">
+<a name="id-1.12.3.2.4.8.7"></a><p>[<abbr class="abbrev">RFC8906</abbr>]
+
+ <span class="authorgroup"><span class="firstname">M.</span> <span class="surname">Andrews</span> and <span class="firstname">R.</span> <span class="surname">Bellis</span>. </span>
+ <span class="title"><i>
+ A Common Operational Problem in DNS Servers: Failure to Communicate
+ </i>. </span>
+ <span class="pubdate">September 2020. </span>
+ </p>
</div>
</div>
<div class="bibliodiv">
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
<div>
<div><h1 class="title">
<a name="id-1"></a>BIND 9 Administrator Reference Manual</h1></div>
-<div><p class="releaseinfo">BIND Version 9.11.23</p></div>
+<div><p class="releaseinfo">BIND Version 9.11.24</p></div>
<div><p class="copyright">Copyright © 2000-2020 Internet Systems Consortium, Inc. ("ISC")</p></div>
</div>
<hr>
</dl></dd>
<dt><span class="appendix"><a href="Bv9ARM.ch09.html">A. Release Notes</a></span></dt>
<dd><dl>
-<dt><span class="section"><a href="Bv9ARM.ch09.html#id-1.10.2">Release Notes for BIND Version 9.11.23</a></span></dt>
+<dt><span class="section"><a href="Bv9ARM.ch09.html#id-1.10.2">Release Notes for BIND Version 9.11.24</a></span></dt>
<dd><dl>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_intro">Introduction</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_download">Download</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes_license">License Change</a></span></dt>
+<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.24">Notes for BIND 9.11.24</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.23">Notes for BIND 9.11.23</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.22">Notes for BIND 9.11.22</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch09.html#relnotes-9.11.21">Notes for BIND 9.11.21</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch11.html#ipv6addresses">IPv6 addresses (AAAA)</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch11.html#bibliography">Bibliography (and Suggested Reading)</a></span></dt>
<dd><dl>
-<dt><span class="section"><a href="Bv9ARM.ch11.html#rfcs">Request for Comments (RFCs)</a></span></dt>
+<dt><span class="section"><a href="Bv9ARM.ch11.html#rfcs">Requests for Comments (RFCs)</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch11.html#internet_drafts">Internet Drafts</a></span></dt>
<dt><span class="section"><a href="Bv9ARM.ch11.html#more_about_bind">Other Documents About <acronym class="acronym">BIND</acronym></a></span></dt>
</dl></dd>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
</tr>
</table>
</div>
-<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.23 (Extended Support Version)</p>
+<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.24 (Extended Support Version)</p>
</body>
</html>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
-<a name="id-1.2"></a>Release Notes for BIND Version 9.11.23</h2></div></div></div>
+<a name="id-1.2"></a>Release Notes for BIND Version 9.11.24</h2></div></div></div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
+<a name="relnotes-9.11.24"></a>Notes for BIND 9.11.24</h3></div></div></div>
+
+ <div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="relnotes-9.11.24-changes"></a>Feature Changes</h4></div></div></div>
+ <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+ <p>
+ DNS Flag Day 2020: The default EDNS buffer size has been changed from
+ 4096 to 1232 bytes. According to measurements done by multiple
+ parties, this should not cause any operational problems as most of
+ the Internet "core" is able to cope with IP message sizes between
+ 1400-1500 bytes; the 1232 size was picked as a conservative minimal
+ number that could be changed by the DNS operator to an estimated path
+ MTU minus the estimated header space. In practice, the smallest MTU
+ witnessed in the operational DNS community is 1500 octets, the
+ maximum Ethernet payload size, so a useful default for maximum
+ DNS/UDP payload size on reliable networks would be 1400 bytes.
+ [GL #2183]
+ </p>
+ </li></ul></div>
+ </div>
+
+ <div class="section">
+<div class="titlepage"><div><div><h4 class="title">
+<a name="relnotes-9.11.24-bugs"></a>Bug Fixes</h4></div></div></div>
+ <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
+ <p>
+ <span class="command"><strong>named</strong></span> reported an invalid memory size when running
+ in an environment that did not properly report the number of available
+ memory pages and/or the size of each memory page. [GL #2166]
+ </p>
+ </li>
+<li class="listitem">
+ <p>
+ With multiple forwarders configured, <span class="command"><strong>named</strong></span> could
+ fail the <code class="code">REQUIRE(msg->state == (-1))</code> assertion in
+ <code class="filename">lib/dns/message.c</code>, causing it to crash. This has
+ been fixed. [GL #2124]
+ </p>
+ </li>
+</ul></div>
+ </div>
+
+</div>
+ <div class="section">
+<div class="titlepage"><div><div><h3 class="title">
<a name="relnotes-9.11.23"></a>Notes for BIND 9.11.23</h3></div></div></div>
<div class="section">
-Release Notes for BIND Version 9.11.23
+Release Notes for BIND Version 9.11.24
Introduction
or who wish to discuss how to comply with the license may contact ISC at
https://www.isc.org/mission/contact/.
+Notes for BIND 9.11.24
+
+Feature Changes
+
+ • DNS Flag Day 2020: The default EDNS buffer size has been changed from
+ 4096 to 1232 bytes. According to measurements done by multiple
+ parties, this should not cause any operational problems as most of the
+ Internet "core" is able to cope with IP message sizes between
+ 1400-1500 bytes; the 1232 size was picked as a conservative minimal
+ number that could be changed by the DNS operator to an estimated path
+ MTU minus the estimated header space. In practice, the smallest MTU
+ witnessed in the operational DNS community is 1500 octets, the maximum
+ Ethernet payload size, so a useful default for maximum DNS/UDP payload
+ size on reliable networks would be 1400 bytes. [GL #2183]
+
+Bug Fixes
+
+ • named reported an invalid memory size when running in an environment
+ that did not properly report the number of available memory pages and/
+ or the size of each memory page. [GL #2166]
+
+ • With multiple forwarders configured, named could fail the REQUIRE
+ (msg->state == (-1)) assertion in lib/dns/message.c, causing it to
+ crash. This has been fixed. [GL #2124]
+
Notes for BIND 9.11.23
Bug Fixes
# 9.10-sub: 180-189
# 9.11: 160-169,1100-1199
# 9.12: 1200-1299
-LIBINTERFACE = 1111
+LIBINTERFACE = 1112
LIBREVISION = 0
-LIBAGE = 1
+LIBAGE = 0
# 9.11: 160-169,1100-1199
# 9.12: 1200-1299
LIBINTERFACE = 1107
-LIBREVISION = 1
+LIBREVISION = 2
LIBAGE = 0
DESCRIPTION="(Extended Support Version)"
MAJORVER=9
MINORVER=11
-PATCHVER=23
+PATCHVER=24
RELEASETYPE=
RELEASEVER=
EXTENSIONS=
projects / thirdparty / bind9.git / commitdiff
