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IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 11 - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 12 - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 13 - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 14 - PERFORMANCE OF THIS SOFTWARE. 15--> 16 17<!-- Id --> 18<html> 19<head> 20<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 21<title>dnssec-coverage</title> 22<meta name="generator" content="DocBook XSL Stylesheets V1.71.1"> 23</head> 24<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"> 25<a name="man.dnssec-coverage"></a><div class="titlepage"></div> 26<div class="refnamediv"> 27<h2>Name</h2> 28<p><span class="application">dnssec-coverage</span> — checks future DNSKEY coverage for a zone</p> 29</div> 30<div class="refsynopsisdiv"> 31<h2>Synopsis</h2> 32<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> 33</div> 34<div class="refsect1" lang="en"> 35<a name="id2543419"></a><h2>DESCRIPTION</h2> 36<p><span><strong class="command">dnssec-coverage</strong></span> 37 verifies that the DNSSEC keys for a given zone or a set of zones 38 have timing metadata set properly to ensure no future lapses in DNSSEC 39 coverage. 40 </p> 41<p> 42 If <code class="option">zone</code> is specified, then keys found in 43 the key repository matching that zone are scanned, and an ordered 44 list is generated of the events scheduled for that key (i.e., 45 publication, activation, inactivation, deletion). The list of 46 events is walked in order of occurrence. Warnings are generated 47 if any event is scheduled which could cause the zone to enter a 48 state in which validation failures might occur: for example, if 49 the number of published or active keys for a given algorithm drops 50 to zero, or if a key is deleted from the zone too soon after a new 51 key is rolled, and cached data signed by the prior key has not had 52 time to expire from resolver caches. 53 </p> 54<p> 55 If <code class="option">zone</code> is not specified, then all keys in the 56 key repository will be scanned, and all zones for which there are 57 keys will be analyzed. (Note: This method of reporting is only 58 accurate if all the zones that have keys in a given repository 59 share the same TTL parameters.) 60 </p> 61</div> 62<div class="refsect1" lang="en"> 63<a name="id2543444"></a><h2>OPTIONS</h2> 64<div class="variablelist"><dl> 65<dt><span class="term">-K <em class="replaceable"><code>directory</code></em></span></dt> 66<dd><p> 67 Sets the directory in which keys can be found. Defaults to the 68 current working directory. 69 </p></dd> 70<dt><span class="term">-f <em class="replaceable"><code>file</code></em></span></dt> 71<dd><p> 72 If a <code class="option">file</code> is specified, then the zone is 73 read from that file; the largest TTL and the DNSKEY TTL are 74 determined directly from the zone data, and the 75 <code class="option">-m</code> and <code class="option">-d</code> options do 76 not need to be specified on the command line. 77 </p></dd> 78<dt><span class="term">-l <em class="replaceable"><code>duration</code></em></span></dt> 79<dd> 80<p> 81 The length of time to check for DNSSEC coverage. Key events 82 scheduled further into the future than <code class="option">duration</code> 83 will be ignored, and assumed to be correct. 84 </p> 85<p> 86 The value of <code class="option">duration</code> can be set in seconds, 87 or in larger units of time by adding a suffix: 'mi' for minutes, 88 'h' for hours, 'd' for days, 'w' for weeks, 'mo' for months, 89 'y' for years. 90 </p> 91</dd> 92<dt><span class="term">-m <em class="replaceable"><code>maximum TTL</code></em></span></dt> 93<dd> 94<p> 95 Sets the value to be used as the maximum TTL for the zone or 96 zones being analyzed when determining whether there is a 97 possibility of validation failure. When a zone-signing key is 98 deactivated, there must be enough time for the record in the 99 zone with the longest TTL to have expired from resolver caches 100 before that key can be purged from the DNSKEY RRset. If that 101 condition does not apply, a warning will be generated. 102 </p> 103<p> 104 The length of the TTL can be set in seconds, or in larger units 105 of time by adding a suffix: 'mi' for minutes, 'h' for hours, 106 'd' for days, 'w' for weeks, 'mo' for months, 'y' for years. 107 </p> 108<p> 109 This option is mandatory unless the <code class="option">-f</code> has 110 been used to specify a zone file. (If <code class="option">-f</code> has 111 been specified, this option may still be used; it will override 112 the value found in the file.) 113 </p> 114</dd> 115<dt><span class="term">-d <em class="replaceable"><code>DNSKEY TTL</code></em></span></dt> 116<dd> 117<p> 118 Sets the value to be used as the DNSKEY TTL for the zone or 119 zones being analyzed when determining whether there is a 120 possibility of validation failure. When a key is rolled (that 121 is, replaced with a new key), there must be enough time 122 for the old DNSKEY RRset to have expired from resolver caches 123 before the new key is activated and begins generating 124 signatures. If that condition does not apply, a warning 125 will be generated. 126 </p> 127<p> 128 The length of the TTL can be set in seconds, or in larger units 129 of time by adding a suffix: 'mi' for minutes, 'h' for hours, 130 'd' for days, 'w' for weeks, 'mo' for months, 'y' for years. 131 </p> 132<p> 133 This option is mandatory unless the <code class="option">-f</code> has 134 been used to specify a zone file, or a default key TTL was 135 set with the <code class="option">-L</code> to 136 <span><strong class="command">dnssec-keygen</strong></span>. (If either of those is true, 137 this option may still be used; it will override the value found 138 in the zone or key file.) 139 </p> 140</dd> 141<dt><span class="term">-r <em class="replaceable"><code>resign interval</code></em></span></dt> 142<dd> 143<p> 144 Sets the value to be used as the resign interval for the zone 145 or zones being analyzed when determining whether there is a 146 possibility of validation failure. This value defaults to 147 22.5 days, which is also the default in 148 <span><strong class="command">named</strong></span>. However, if it has been changed 149 by the <code class="option">sig-validity-interval</code> option in 150 <code class="filename">named.conf</code>, then it should also be 151 changed here. 152 </p> 153<p> 154 The length of the interval can be set in seconds, or in larger 155 units of time by adding a suffix: 'mi' for minutes, 'h' for hours, 156 'd' for days, 'w' for weeks, 'mo' for months, 'y' for years. 157 </p> 158</dd> 159<dt><span class="term">-k</span></dt> 160<dd><p> 161 Only check KSK coverage; ignore ZSK events. Cannot be 162 used with <code class="option">-z</code>. 163 </p></dd> 164<dt><span class="term">-z</span></dt> 165<dd><p> 166 Only check ZSK coverage; ignore KSK events. Cannot be 167 used with <code class="option">-k</code>. 168 </p></dd> 169<dt><span class="term">-c <em class="replaceable"><code>compilezone path</code></em></span></dt> 170<dd><p> 171 Specifies a path to a <span><strong class="command">named-compilezone</strong></span> binary. 172 Used for testing. 173 </p></dd> 174</dl></div> 175</div> 176<div class="refsect1" lang="en"> 177<a name="id2543745"></a><h2>SEE ALSO</h2> 178<p> 179 <span class="citerefentry"><span class="refentrytitle">dnssec-checkds</span>(8)</span>, 180 <span class="citerefentry"><span class="refentrytitle">dnssec-dsfromkey</span>(8)</span>, 181 <span class="citerefentry"><span class="refentrytitle">dnssec-keygen</span>(8)</span>, 182 <span class="citerefentry"><span class="refentrytitle">dnssec-signzone</span>(8)</span> 183 </p> 184</div> 185<div class="refsect1" lang="en"> 186<a name="id2543788"></a><h2>AUTHOR</h2> 187<p><span class="corpauthor">Internet Systems Consortium</span> 188 </p> 189</div> 190</div></body> 191</html> 192