title: What is the meaning of the gpgcheck in repo file?
body: <p>In the <code>.repo</code> file:</p>
  
  <pre><code>[centos]    
  name=centos7.2   
  baseurl=http://10.0.0.1/centos7.2/7.2/xxx/x86_64/   
  enabled=1   
  gpgcheck=0
  </code></pre>
  
  <p>You can see there is some key-value analogy things, I know the name, baseurl and enable representative for what, but I don't know what is the use of <code>gpgcheck</code>, someone can help with that?</p>