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Set Up Centos 7 Server

Installation Selections

  • Software Selection: Minimal Install
  • KDump: disable
  • Security Policy: default

The Minimal Install includes OpenSSH and Postfix but no other server software (that I notice).

Additional Tools

> sudo yum -y install nmap mutt

Set Up Auto Update

> sudo yum -y install yum-cron

Edit /etc/yum/yum-cron.conf so that

  • update_cmd = default
  • update_messages, download_updates, apply_updates = yes
  • emit_via = email
  • email_to = the admin user account

Set yum-cron service to auto-start and start it:

> sudo systemctl enable yum-cron
> sudo systemctl start yum-cron

References
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