If SAML/Authentication is enabled, once the Hub is loaded there will be a ‘user’ icon in the top right-hand corner. As you hover over the user icon the logout option will be displayed. On clicking the logout link you will be redirected to the login page.
Note: After logging out, if the browser back button is clicked, the previously displayed Hub page will be reloaded. By doing this, there will be no connection to the server. As soon as any information is requested from the server, you will be automatically redirected to the login page.