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


since up2date -l to list the outdated packages can only be run be run by root the plugin must be executed as root.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

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

and execute the plugin with sudo

sudo $INSTALLATION_PATH/check_updates

Yum security plugin

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

Fedora, Red Hat Enterprise Linux 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