title: Machine key generating
body: <p>I was setting up my web.config for subdomain single login. I had to set up Machine key. How can I generate machine key? RIght now i'm using key from this example:</p>
  
  <p><a href="https://stackoverflow.com/questions/19166599/asp-net-identity-cookie-across-subdomains">ASP.NET Identity Cookie across subdomains</a></p>
  
  <p>But I suppose that if it works I have to generate somehow my own key?</p>