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Automated SSL Labs testing with Opsview

In this blog I will cover how you can use a Nagios plugin to automatically test your websites SSL security strength on a daily basis, and alert you when it drops below a certain score – thus increasing the likelihood of a security breach.

Nagios plugins and Splunk.. wait, what?

Recently i’ve been on a bit of a tear with my infrastructure, moving from Apache to Nginx and migrating to new hardware (I moved from my beloved 25KG Fractal Define XL to a new mATX box that is 25% the size.. i call it ‘wife friendly infrastructure’!).

In my infrastructure of many ridiculous things, I use Opsview to monitor server temperatures (CPU/HDD/RAM), free space on my logical volumes, SMART status, RAID status and a few other things (systemd service status, etc). I then use Splunk Light to parse and display information gathered from logs for my web applications: ownCloud, Opsview, etc and also the logs forwarded from my router which handles port forwarding into the LAN (so i can see all the naughty port scanners..tsk tsk).

One thing I was always curious about was how could I get Splunk to analyse and interpret data generated by the Nagios (c) or Monitoring Plugins ran by software such as Opsview, Nagios, Icinga 2, or pretty much any monitoring tool out there.