Aug 092014

Ci spiace, ma questo articolo è disponibile soltanto in Inglese Americano.

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  6 Responses to “(English) Enabling automatic updates in Centos 7 and RHEL 7”

  1. How does yum-cron work? Is it constantly checking for updates and will download and apply them in real time? How can I configure yum-cron to run only at certain times?

    • There is this 0yum-daily.cron file inside your /etc/cron.daily/ that is executed daily by your scheduler. It checks for the existence of /var/lock/subsys/yum-cron file. If it doesn’t exist, the cron job just ends. If it does exist, the cron script executes /usr/sbin/yum-cron.

      And this /var/lock/subsys/yum-cron file is touched or removed by your yum-cron.service systemd script when you start or stop it respectively.

  2. Hello friend! thanks for the nice post.!

    I have a question about the schedule for apply the updates. for example if i want to apply the updates only at midnight, which will be the best solution to set yum-cron to run in this schedule?


    • Copy a version of it to /usr/local/sbin, configure it the way you want, and enable a task in /etc/cron.d to run it specifically at midnight.

  3. OK but my system tells me there is no yum-cron available. How do I get that?

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