title: How to change the root folder permission in linux centos
body: <p>I have currently this permission in my / folder.</p>
  
  <p><code>drwxr-xr-x</code>. I have seen that anyone can open that folder.</p>
  
  <p>How can remove the executable permission from that so that other permission remain same 
  Also is any other main folder in / where i need to remove public executable permission</p>