CentOS / RHEL : Configure yum automatic updates with yum-cron service

yum-cron is an optional package starting from Red Hat Enterprise Linux 6, this is a plugin for yum. From man page of yum-cron :

yum-cron is a simple way to call yum commands from cron. It provides configuration to keep repository metadata up to date, and to check for, download, and apply updates.

The yum-cron package provides a convenient way to check for, download and apply updates automatically. The cron jobs from the yum-cron package are active immediately after installing the package and there’s no extra configuration necessary. The job will be run when your normal daily cron jobs are set to run.

Installation

To install yum-cron package

 
# yum -y install yum-cron
# chkconfig yum-cron on

Configuration for RHEL 6

Then edit /etc/sysconfig/yum-cron to set MAILTO=[email address] for email notifications.

MAILTO=sys@example.com

To exclude packages using yum-cron edit the /etc/sysconfig/yum-cron to have the packeges to be excluded in the automatic uodate :

YUM_PARAMETER=kernel* mysql*

To start yum-cron service after editing configuration file.

# service yum-cron start

Configuration for RHEL 7

Then edit /etc/yum/yum-cron.conf to set email_to=[email address] for email notifications.

email_to=sys@example.com

To exclude packages using yum-cron edit the /etc/yum/yum-cron.conf to have the packeges to be excluded in the automatic uodate :

exclude=kernel* mysql*

In RHEL 7 you can use following options in yum-cron configuration file, to install security updates.

[commands]
#  What kind of update to use:
# default                            = yum upgrade
# security                           = yum --security upgrade
# security-severity:Critical         = yum --sec-severity=Critical upgrade
# minimal                            = yum --bugfix upgrade-minimal
# minimal-security                   = yum --security upgrade-minimal
# minimal-security-severity:Critical =  --sec-severity=Critical upgrade-minimal
update_cmd = default

To start yum-cron service after editing configuration file.

# systemctl start yum-cron
0 (0)
Article Rating (No Votes)
Rate this article
Attachments
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Full Name
Email Address
Security Code Security Code
Related Articles RSS Feed
CentOS / RHEL 7 : Configuring an NFS server and NFS client Linux NFS
Viewed 451 times since Fri, Feb 21, 2020
RHCS6: Debug and test multicast traffic between two hosts
Viewed 624 times since Sun, Jun 3, 2018
Turbocharge PuTTY with 12 Powerful Add-Ons – Software for Geeks #3
Viewed 870 times since Sun, Sep 30, 2018
How to use yum command on CentOS/RHEL
Viewed 1042 times since Wed, Oct 17, 2018
tcpdump usage examples
Viewed 444 times since Fri, Jul 27, 2018
sed Delete / Remove ^M Carriage Return (Line Feed / CRLF) on Linux or Unix
Viewed 516 times since Thu, Feb 7, 2019
stunnel: Authentication
Viewed 492 times since Fri, Sep 28, 2018
Extending Linux LVM partitions script
Viewed 462 times since Wed, Feb 6, 2019
Linux ssh Hide OpenSSH Version Banner
Viewed 152 times since Wed, Apr 22, 2020
RHCS6: Luci - the cluster management console
Viewed 790 times since Sun, Jun 3, 2018