title: Why can't one SSL certificate be used for multiple machines?
body: <p>Here is the situation.  I am making changes to an application but I do not have test environment.  There is a QA server for the testing team to use, but I would rather test the application on my local machine (deploying changes to that server might interrupt the testers).  I have setup the environment on my local machine, but there is a problem.</p>
  
  <p>The application reads data from a third party application.  It needs an SSL certificate to connect to the third party.</p>
  
  <p>My question is, why can't I use the SSL certificate from the QA server on my local machine?</p>
  
  <p>I have done a cursory search on Stack Overflow, and to me it seems once the certificate is issued from the CA that any computer could use it.  My guess is that I have misunderstood some part of the SSL process.</p>