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Logon and remote execution without using passwords.

We can leverage SSH public-key authentication between hosts to enable all sorts of useful functionality, including…

  • Password-less login from HostA to HostB
  • Ability to execute remote commands from HostA on HostB
  • We can automatically administer an entire network of servers from a central server

I once set up a very large and complex WebSphere Commerce site for a Fortune 500 retailer that used this procedure to remotely execute various commands, including stopping/starting, and generating reports for, eXtreme Scale caching.

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