With all of the new shell exploits coming out I want to ensure all of my droplets are secure. How can someone automate this process?
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On Ubuntu you can automate system updates with the unattended-upgrades package. The documentation for this can be found here:
https://help.ubuntu.com/14.04/serverguide/automatic-updates.html
On CentOS you can set up automatic updates with the yum-cron package setting up your configuration in /etc/sysconfig/yum-cron
One thing to keep in mind is avoiding automatic updates to your kernel since allowing the kernel within your droplet to be out of sync with the kernel image assigned to your droplet could result in issues.
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