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Installing Nagios monitoring can sometimes be quite daunting. The best way to install Nagios is from source. But that means it is not quite as simple as installing a package. There are several steps in the install process. But once you know the steps it is actually quite easy. So I have worked through ironing out the steps for installing the base Nagios server. In this video we install on Centos 7. The same process will work on Red Hat Enterprise, Amazon AWS Linux, and Oracle Linux (I have tested on all those). It should work the same on other rpm based Linux distros. The process is slightly different on Ubuntu and other Debian based systems.
Once you get this install done you still will have to install NRPE and configure remote servers for connectivity to monitor your environment. I have a course on Udemy that covers all the steps to set up a basic monitoring system that covers all the steps for setting up basic monitoring on Linux and Windows. You can sign up for the course between now and December 31st 2017 for only $10 by following the link https://www.udemy.com/setting-up-nagios-4/?couponCode=ASG-BLOG to get to the course.
I am truly a geeks geek. I have worked in computers for over three decades. I have worked on mainframes, Unix systems, Linux before almost anyone knew what it was, and many other systems. I love computers, and love making them do things people think is impossible.