====== ClusterSSH ======
  * [[http://www.unixmen.com/how-to-manage-multiple-ssh-sessions-using-cluster-ssh-and-pac-manager/|How To Manage Multiple SSH Sessions]]
  * [[https://www.linux.com/learn/tutorials/413853:managing-multiple-linux-servers-with-clusterssh|Managing Multiple Linux Servers with ClusterSSH | Linux.com]]