title: unknown error: DevToolsActivePort file doesn't exist error while executing Selenium UI test cases on ubuntu
body: <p>I have an ubuntu server having the UI as well. U can execute the test cases by firing mvn test command. But the problem is when I do ssh of the machine through the terminal from another machine I get the following error-</p>
  
  <pre><code>unknown error: DevToolsActivePort file doesn't exist
    (Driver info: chromedriver=2.40.565383 (76257d1ab79276b2d53ee976b2c3e3b9f335cde7),platform=Linux 4.4.0-121-generic x86_64) (WARNING: The server did not provide any stacktrace information)
  Command duration or timeout: 60.04 seconds
  Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T18:33:54.468Z'
  System info: host: 'ubuntu-test', ip: 'X.X.X.X', os.name: 'Linux', os.arch: 'amd64', os.version: '4.4.0-121-generic', java.version: '1.8.0_171'
  Driver info: driver.version: ChromeDriver
  </code></pre>
  
  <p>but the same command starts chrome successfully if I take remote of the machine through remmina and then execute the same command of this machines terminal.</p>