• Install vnc4server

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sudo apt-get install vnc4server

• Install Xvnc plugin for Jenkins
• Switch to jenkins user and set password for vnc4server

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$ su - jenkins
$ vncserver
> Enter a password, and verify it
$ vncserver -kill :1 # or whichever display the vncserver output mentioned

• Config Jenkins job to run in headless mode by check “Run Xvnc during build”

• Watch the running job

  • open any VNC client
  • connect to your.server:59xx (xx is the display number output on the Jenkins console for the running job)
  • enter the password you set for vnc4server before

This article is based on From Zero to Headless Browser Tests in Jenkins