====== Parallel SSH ======
  * 동시에 여러 서버에 SSH 명령 보내기
  * [[http://www.ubuntugeek.com/pssh-parallel-ssh-tools.html|PSSH – Parallel SSH Tools]] - Python으로 만들어진 병릴 SSH 실행 도구
    * [[https://www.cyberciti.biz/cloud-computing/how-to-use-pssh-parallel-ssh-program-on-linux-unix/|How to use parallel ssh (PSSH) for executing ssh in parallel on a number of servers]]
  * https://code.google.com/p/pdsh/
  * https://code.google.com/p/parallel-ssh/
  * https://github.com/duncs/clusterssh/wiki
  * http://clusterit.sourceforge.net/