I have been a fan of this for a long time, and feel that keeping a system up to date is a vital aspect of maintaining a secure system. And this makes it easy to do it.
yum install yum-cron service yum-cron start chkconfig yum-cron onThe last step is the one I traditionally forget. I think it is almost silly that installing the package does not enable the service (why else would you be installing it). It is almost as silly that you still use "service" and "chkconfig" to manage this package (seeing that Fedora has crammed systemd down our throats, you would think they would buy into it fully themselves). If they ever do get around to converting this to a native systemd service or unit or gadget, you should:
systemctl start yum-cron.service systemctl enable yum-cron.service
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