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I am trying to use the check_zypper plugin for Nagios (, however it always returns: "Updates OK: no updates available" even when there are updates available. Sometimes this message is displayed with status OK, while most of the time it is yellow with status WARNING.

I am using plugin version 1.01 with SLES 11.2

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It turns out that the version Nagios hosts and suggest on their website is old and outdated. The latest version available from seems to work fine.

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It sounds like that the command or service definition is using a local definition of your check_zypper plugin. I use the version available from main repos. You can install it with zypper:

zypper install nagios-plugins-zypper

Or download it from and install version 1.48, last stable at this moment.

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