title: Where to set the System Properties in Jenkins?
body: <p>I am exploring the <a href="https://wiki.jenkins-ci.org/display/JENKINS/Amazon+EC2+Plugin" rel="nofollow">EC2 plugin</a> of Jenkins. One of the issues reported is with the Authentication Timeout.</p>
  
  <pre><code>jenkins.ec2.bootstrapAuthSleepMs (default 30000)
  jenkins.ec2.bootstrapAuthTries (default 30)
  </code></pre>
  
  <p>I am seeing this issue with my install and I am trying to set the properties accordingly. So far without any success. Where do you increase the default timeout values for a jenkins install as suggested on the Install page? </p>