How it works...

While we could have included instructions on installing Check_MK, they are actually very long and would have required several pages of explanation. The official site does an admirable job presenting the installation process, so why duplicate it? The abundant documentation is a great reason to use it.

Once we log in, we see a very large and somewhat imposing interface. However, for now, we are only interested in the left sidebar. What we're looking for is the Web Administration Tool (WATO) section, as seen here:

It's a good idea to quickly explain how to install Check_MK resource agents before we start monitoring anything. This ...

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