We are planning to upgrade OS to RHEL 6.6 on all our servers. All our servers are located in a data center. We have to follow a repeated process of installing application stack, securing, hardening etc on all the servers.

Is there a automated approach for this which we can do remotely ? We asked the data center team if they can take a clone and deploy the image but they would not do that.

  • What about puppet?
    – ludiegu
    Jul 30 '15 at 7:52

Red Hat's own Kickstart is a popular approach for automating RHEL installs/upgrades. It can be used to perform the OS install/upgrade itself and then to perform post-install/upgrade actions such as hardening and installing further packages.

  • Can we do this remotely without the help of data center personnel ? Another thing is we only have ssh access to the server.
    – Karthik K
    Jul 30 '15 at 7:22
  • Only having ssh access to the server makes Kickstart approach tricky/unrealistic. Why not just write your own set of RPMs and scripts to install the application stack and do the hardening?
    – steve
    Jul 30 '15 at 19:32

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