check_updates is a Nagios plugin to check if RedHat or Fedora system is up-to-date
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README.md

(c) Matteo Corti, ETH Zurich, 2007-2012

(c) Matteo Corti, 2007-2018

see AUTHORS for the complete list of contributors

check_updates

check_updates is a Nagios plugin to check if RedHat or Fedora system is up-to-date

The plugin uses either YUM, DNF or up2date depending on the operating system.

up2date

since up2date -l to list the outdated packages can only be run be run by root the plugin must be executed as root. Please configure sudo as follows:

nagios ALL= NOPASSWD: /usr/sbin/up2date -l

and execute the plugin with sudo

sudo $INSTALLATION_PATH/check_updates

DNF

DNF uses different caches per user. This has the consequence that DNF and the plugin will potentially deliver different results for different users.

Yum security plugin

Use one of the following commands to install the yum security plugin:

  • Fedora, Red Hat Enterprise Linux 6.x, CentOS 6.x, Scientific Linux 6.x systems:
yum install yum-plugin-security
  • Red Hat Enterprise Linux 5.x, CentOS 5.x and Scientific Linux 5.x systems:
yum install yum-security