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bb2b38cd44b032118359afbc743efbea12f48e61bnicholes - Copyright (C) 2004-2015 Internet Systems Consortium, Inc. ("ISC")
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bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<p><span class="application">dnssec-coverage</span> — checks future DNSKEY coverage for a zone</p>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<div class="cmdsynopsis"><p><code class="command">dnssec-coverage</code> [<code class="option">-K <em class="replaceable"><code>directory</code></em></code>] [<code class="option">-l <em class="replaceable"><code>length</code></em></code>] [<code class="option">-f <em class="replaceable"><code>file</code></em></code>] [<code class="option">-d <em class="replaceable"><code>DNSKEY TTL</code></em></code>] [<code class="option">-m <em class="replaceable"><code>max TTL</code></em></code>] [<code class="option">-r <em class="replaceable"><code>interval</code></em></code>] [<code class="option">-c <em class="replaceable"><code>compilezone path</code></em></code>] [<code class="option">-k</code>] [<code class="option">-z</code>] [zone]</p></div>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<p><span><strong class="command">dnssec-coverage</strong></span>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes verifies that the DNSSEC keys for a given zone or a set of zones
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes have timing metadata set properly to ensure no future lapses in DNSSEC
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes If <code class="option">zone</code> is specified, then keys found in
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes the key repository matching that zone are scanned, and an ordered
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes list is generated of the events scheduled for that key (i.e.,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes publication, activation, inactivation, deletion). The list of
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes events is walked in order of occurrence. Warnings are generated
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes if any event is scheduled which could cause the zone to enter a
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes state in which validation failures might occur: for example, if
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes the number of published or active keys for a given algorithm drops
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes to zero, or if a key is deleted from the zone too soon after a new
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes key is rolled, and cached data signed by the prior key has not had
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes time to expire from resolver caches.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes If <code class="option">zone</code> is not specified, then all keys in the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes key repository will be scanned, and all zones for which there are
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes keys will be analyzed. (Note: This method of reporting is only
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes accurate if all the zones that have keys in a given repository
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes share the same TTL parameters.)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<dt><span class="term">-K <em class="replaceable"><code>directory</code></em></span></dt>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Sets the directory in which keys can be found. Defaults to the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes current working directory.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<dt><span class="term">-f <em class="replaceable"><code>file</code></em></span></dt>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes If a <code class="option">file</code> is specified, then the zone is
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes read from that file; the largest TTL and the DNSKEY TTL are
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes determined directly from the zone data, and the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <code class="option">-m</code> and <code class="option">-d</code> options do
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes not need to be specified on the command line.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<dt><span class="term">-l <em class="replaceable"><code>duration</code></em></span></dt>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes The length of time to check for DNSSEC coverage. Key events
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes scheduled further into the future than <code class="option">duration</code>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes will be ignored, and assumed to be correct.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes The value of <code class="option">duration</code> can be set in seconds,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes or in larger units of time by adding a suffix: 'mi' for minutes,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes 'h' for hours, 'd' for days, 'w' for weeks, 'mo' for months,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes 'y' for years.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<dt><span class="term">-m <em class="replaceable"><code>maximum TTL</code></em></span></dt>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Sets the value to be used as the maximum TTL for the zone or
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes zones being analyzed when determining whether there is a
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes possibility of validation failure. When a zone-signing key is
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes deactivated, there must be enough time for the record in the
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes zone with the longest TTL to have expired from resolver caches
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes before that key can be purged from the DNSKEY RRset. If that
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes condition does not apply, a warning will be generated.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes The length of the TTL can be set in seconds, or in larger units
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes of time by adding a suffix: 'mi' for minutes, 'h' for hours,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes 'd' for days, 'w' for weeks, 'mo' for months, 'y' for years.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes This option is mandatory unless the <code class="option">-f</code> has
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes been used to specify a zone file. (If <code class="option">-f</code> has
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes been specified, this option may still be used; it will override
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes the value found in the file.)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<dt><span class="term">-d <em class="replaceable"><code>DNSKEY TTL</code></em></span></dt>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Sets the value to be used as the DNSKEY TTL for the zone or
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes zones being analyzed when determining whether there is a
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes possibility of validation failure. When a key is rolled (that
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes is, replaced with a new key), there must be enough time
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes for the old DNSKEY RRset to have expired from resolver caches
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes before the new key is activated and begins generating
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes signatures. If that condition does not apply, a warning
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes will be generated.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes The length of the TTL can be set in seconds, or in larger units
b7cb4a5ce4dee66abb38a7fd15ae52fb6045c545bnicholes of time by adding a suffix: 'mi' for minutes, 'h' for hours,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes 'd' for days, 'w' for weeks, 'mo' for months, 'y' for years.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes This option is mandatory unless the <code class="option">-f</code> has
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes been used to specify a zone file, or a default key TTL was
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <span><strong class="command">dnssec-keygen</strong></span>. (If either of those is true,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes this option may still be used; it will override the value found
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes in the zone or key file.)
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<dt><span class="term">-r <em class="replaceable"><code>resign interval</code></em></span></dt>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Sets the value to be used as the resign interval for the zone
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes or zones being analyzed when determining whether there is a
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes possibility of validation failure. This value defaults to
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes 22.5 days, which is also the default in
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <span><strong class="command">named</strong></span>. However, if it has been changed
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes by the <code class="option">sig-validity-interval</code> option in
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <code class="filename">named.conf</code>, then it should also be
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes changed here.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes The length of the interval can be set in seconds, or in larger
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes units of time by adding a suffix: 'mi' for minutes, 'h' for hours,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes 'd' for days, 'w' for weeks, 'mo' for months, 'y' for years.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Only check KSK coverage; ignore ZSK events. Cannot be
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Only check ZSK coverage; ignore KSK events. Cannot be
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<dt><span class="term">-c <em class="replaceable"><code>compilezone path</code></em></span></dt>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Specifies a path to a <span><strong class="command">named-compilezone</strong></span> binary.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes Used for testing.
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <span class="citerefentry"><span class="refentrytitle">dnssec-checkds</span>(8)</span>,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <span class="citerefentry"><span class="refentrytitle">dnssec-dsfromkey</span>(8)</span>,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <span class="citerefentry"><span class="refentrytitle">dnssec-keygen</span>(8)</span>,
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes <span class="citerefentry"><span class="refentrytitle">dnssec-signzone</span>(8)</span>
bb2b38cd44b032118359afbc743efbea12f48e61bnicholes<p><span class="corpauthor">Internet Systems Consortium</span>
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