nrpe

Monitoring FreeBSD jails from the host

It was May 2021 when I tweeted about monitoring FreeBSD jails which had jail IP addresses only in the 127.0.0.0/8 range. Yesterday, nearly 6 months later, I did the first test of this. This came up because I’m getting a new FreshPorts node ready. I’ve created a file in the jail to be run from …

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Monitoring your UPS using nut on FreeBSD

It is time to replace my existing UPS with another one. I’m getting only 3 minutes of runtime with the existing batteries (and new batteries, after recalibration). It was suggested I buy an Eaton 5PX. I wasn’t convinced. This is the first of three articles about nut. The second is about testing the shutdown. The …

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Getting ‘FreeBSD-10.2 is vulnerable’ messages on a 12.0 host

I started playing with /usr/local/etc/periodic/security/405.pkg-base-audit as part of a monitoring system. It works fine from the command line, but when I use Nagios plugins, I am getting unexpected results. By unexpected, I mean messages about FreeBSD 10.2. The host in question runs FreeBSD 12.0. The problem cannot be reproduced on the host, only from the …

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Monitoring backups via Nagios and a shell script

Backups are useless without restores. I’ve written a few posts about Nagios, my current monitoring tool of choice. Included with Nagios are a number of plugins and you can even write your own plugins. In this post, I’ll show you a shell script I wrote to make sure my backup files turn up where they …

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