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Use @ns.sslip.io to determine your IP lookup

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It makes for simpler instructions than listing the three nameservers &
which ones have IPv6.
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Brian Cunnie
2021-11-27 19:03:40 -08:00
parent 61f0ae2ae8
commit 4c8e7741f1
1 changed files with 11 additions and 13 deletions
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@@ -113,10 +113,10 @@ src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script> <![endif]-->
own the domain “example.com”, and you want your subdomain, “xip.example.com” to have xip.io-style features. To own the domain “example.com”, and you want your subdomain, “xip.example.com” to have xip.io-style features. To
accomplish this, set the following three DNS servers as NS records for the subdomain “xip.example.com”</p> accomplish this, set the following three DNS servers as NS records for the subdomain “xip.example.com”</p>
<div class="alert alert-warning" role="alert"> <div class="alert alert-warning" role="alert">
2021-11-27 For your information, we've switched to using our own nameservers (sslip.io) instead of the old 2021-11-27 FYI (for your information), we've switched to using our own nameservers (sslip.io) instead of the
nono.io nameservers. Don't worry if you're pointing to the old nameservers—they'll continue to work properly. old nono.io nameservers. <b>You don't need to change anything.</b> Don't worry if you're pointing to the old
In fact, under the hood they are the same nameservers; the change is merely cosmetic: we've created sslip.io nameservers—they'll continue to work properly. In fact, under the hood they are the same nameservers; the
DNS records for them. change is merely cosmetic: we've created sslip.io DNS records for them.
</div> </div>
<table class="table"> <table class="table">
<thead> <thead>
@@ -189,17 +189,15 @@ dig @localhost 127-0-0-1.sslip.io +short # returns "127.0.0.1"</pre>
<h3 id="experimental">Experimental Features</h3> <h3 id="experimental">Experimental Features</h3>
<p>Experimental features can change; don't depend on them.</p> <p>Experimental features can change; don't depend on them.</p>
<h4 id="whatismyip">Determining Your External IP Address via DNS Lookup</h4> <h4 id="whatismyip">Determining Your External IP Address via DNS Lookup</h4>
<p>You can use sslip.io's DNS servers (<code>ns-aws.sslip.io</code>, <code>ns-azure.sslip.io</code>, <p>You can use sslip.io's DNS servers (<code>ns.sslip.io</code>) to determine your public IP address by querying
<code>ns-gce.sslip.io</code>) to determine your public IP address by querying the <code>TXT</code> record of the <code>TXT</code> record of <code>ip.sslip.io</code>:</p>
<code>ip.sslip.io</code>. If you're curious about your public IPv6 address, use the DNS server
<code>ns-aws.sslip.io</code>, for it has both IPv4 and IPv6 addresses:</p>
<pre> <pre>
dig @ns-aws.sslip.io txt ip.sslip.io +short # sample reply "2607:fb90:464:ae1e:ed60:29c:884c:4b52" dig @ns.sslip.io txt ip.sslip.io +short # sample reply "2607:fb90:464:ae1e:ed60:29c:884c:4b52"
dig @ns-aws.sslip.io txt ip.sslip.io +short -4 # forces IPv4 lookup; sample reply "172.58.35.231" dig @ns.sslip.io txt ip.sslip.io +short -4 # forces IPv4 lookup; sample reply "172.58.35.231"
dig @ns-aws.sslip.io txt ip.sslip.io +short -6 # forces IPv6 lookup; sample reply "2607:fb90:464:ae1e:ed60:29c:884c:4b52"</pre> dig @ns.sslip.io txt ip.sslip.io +short -6 # forces IPv6 lookup; sample reply "2607:fb90:464:ae1e:ed60:29c:884c:4b52"</pre>
<div class="alert alert-warning" role="alert"> <div class="alert alert-warning" role="alert">
When querying for your IP address, always <b>include the sslip.io nameserver</b> (e.g. <i>@ns-aws.sslip.io</i>). When querying for your IP address, always <b>include the sslip.io nameserver</b> (e.g. <i>@ns.sslip.io</i>). If
If omitted, you won't get your IP address; instead, you'll get the IP address of your upstream nameserver. omitted, you won't get your IP address; instead, you'll get the IP address of your upstream nameserver.
</div> </div>
<p>This feature was inspired by Google's DNS lookup, i.e. <code>dig txt o-o.myaddr.l.google.com @8.8.8.8 <p>This feature was inspired by Google's DNS lookup, i.e. <code>dig txt o-o.myaddr.l.google.com @8.8.8.8
+short</code>. There are also popular HTTP-based services for determining your public IP address:</p> +short</code>. There are also popular HTTP-based services for determining your public IP address:</p>