title: What is the difference between IWebHost WebHostBuilder BuildWebHost
body: <p>After reading Microsoft documents I am still confused. I need to deploy a .net core 2 web application I developed to an IIS server and I can't get a straight forward answer on anything. This is just the beginning of my questions.</p>
  <p>What is the difference between IWebHost, WebHostBuilder, BuildWebHost?</p>
  <p>Thanks!</p>