mailinabox/management/templates/external-dns.html

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<style>
#external_dns_settings .heading td {
font-weight: bold;
font-size: 120%;
padding-top: 1.5em;
}
#external_dns_settings .heading.first td {
border-top: none;
padding-top: 0;
}
#external_dns_settings .values td {
border: 0;
padding-top: .75em;
padding-bottom: 0;
}
#external_dns_settings .value {
word-break: break-all;
}
#external_dns_settings .explanation td {
border: 0;
padding-top: .5em;
padding-bottom: .75em;
font-style: italic;
font-size: 95%;
color: #777;
}
</style>
<h2>External DNS</h2>
<p class="text-warning">This is an advanced configuration page.</p>
<p>Although your box is configured to serve its own DNS, it is possible to host your DNS elsewhere &mdash; such as in the DNS control panel provided by your domain name registrar or virtual cloud provider &mdash; by copying the DNS zone information shown in the table below into your external DNS server&rsquo;s control panel.</p>
<p>If you do so, you are responsible for keeping your DNS entries up to date! If you previously enabled DNSSEC on your domain name by setting a DS record at your registrar, you will likely have to turn it off before changing nameservers.</p>
<p class="alert" role="alert">
<span class="glyphicon glyphicon-info-sign"></span>
You may encounter zone file errors when attempting to create a TXT record with a long string.
<a href="https://tools.ietf.org/html/rfc4408#section-3.1.3">RFC 4408</a> states a TXT record is allowed to contain multiple strings, and this technique can be used to construct records that would exceed the 255-byte maximum length.
You may need to adopt this technique when adding DomainKeys. Use a tool like <code>named-checkzone</code> to validate your zone file.
</p>
<h3>Download zonefile</h3>
<p>You can download your zonefiles here or use the table of records below.</p>
<form class="form-inline" role="form" onsubmit="do_download_zonefile(); return false;">
<div class="form-group">
<div class="form-group">
<label for="downloadZonefile" class="control-label sr-only">Zone</label>
<select id="downloadZonefile" class="form-control" style="width: auto"> </select>
</div>
<button type="submit" class="btn btn-primary">Download</button>
</div>
</form>
<h3>Records</h3>
<table id="external_dns_settings" class="table">
<thead>
<tr>
<th>QName</th>
<th>Type</th>
<th>Value</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
<script>
function show_external_dns() {
api(
"/dns/zones",
"GET",
{ },
function(data) {
var zones = $('#downloadZonefile');
zones.text('');
for (var j = 0; j < data.length; j++) {
zones.append($('<option/>').text(data[j]));
}
});
$('#external_dns_settings tbody').html("<tr><td colspan='2' class='text-muted'>Loading...</td></tr>")
api(
"/dns/dump",
"GET",
{ },
function(zones) {
$('#external_dns_settings tbody').html("");
for (var j = 0; j < zones.length; j++) {
var h = $("<tr class='heading'><td colspan='3'></td></tr>");
h.find("td").text(zones[j][0]);
$('#external_dns_settings tbody').append(h);
var r = zones[j][1];
for (var i = 0; i < r.length; i++) {
var n = $("<tr class='values'><td class='qname'/><td class='rtype'/><td class='value'/></tr>");
n.find('.qname').text(r[i].qname);
n.find('.rtype').text(r[i].rtype);
n.find('.value').text(r[i].value);
$('#external_dns_settings tbody').append(n);
var n = $("<tr class='explanation'><td colspan='3'/></tr>");
n.find('td').text(r[i].explanation);
$('#external_dns_settings tbody').append(n);
}
}
})
}
function do_download_zonefile() {
var zone = $('#downloadZonefile').val();
api(
"/dns/zonefile/"+ zone,
"GET",
{},
function(data) {
show_modal_error("Download Zonefile", $("<pre/>").text(data));
},
function(err) {
show_modal_error("Download Zonefile (Error)", $("<pre/>").text(err));
});
}
</script>