title: How do I get a list of all subdomains of a domain?
body: <p>I want to find out all the subdomains of a given domain. I found a hint which tells me to dig the authoritative Nameserver with the following option:</p>
  <pre><code>dig @ns1.foo.example example.com axfr
  </code></pre>
  <p>But this never works. Has anyone a better idea/approach</p>