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What is yum-cron ?
Article Number: 416 | Rating: Unrated | Last Updated: Fri, Oct 26, 2018 3:18 PM
What is yum-cron ?
Environment
- Red Hat Enterprise Linux Server 6.x
- Red Hat Enterprise Linux Server 7.x
Issue
- The
yum-cronpackage provides a convenient way to check for, download and apply updates automatically. - The cron jobs from the
yum-cronpackage are active immediately after installing the package and there’s no extra configuration necessary. The job will be run when daily cron jobs are set to run.
Resolution
- To install
yum-cronpackage
# yum -y install yum-cron
# chkconfig yum-cron on
-
Then edit
/etc/sysconfig/yum-cron(RHEL 6) to setMAILTO=email address or/etc/yum/yum-cron.conf(RHEL 7) to setemail_to=for email notifications.- For RHEL 6
MAILTO=sys@example.com
- For RHEL 7
email_to=sys@example.com
- To exclude packages using
yum-cron:- - For RHEL 6
YUM_PARAMETER=kernel* mysql*
- For RHEL 7 edit below option in the base section of
/etc/yum/yum-cron.conffile.
[base]
exclude=kernel* mysql*
- For RHEL 7 use following option 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 = security
-
To start
yum-cronservice after editing configuration file. -
For RHEL 6
# service yum-cron start
- For RHEL 7
# systemctl start yum-cron
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