Angelo
Angelo
I am Angelo. A systems engineer passionate about Linux and all open-source software. Although here I'm just another member of the family.

How to perform a simple Debian monitoring using Monitorix

Hello, friends. In this post, you will learn how to perform a simple Debian monitoring using Monitorix.

Introduction

According to the Monitorix website

Monitorix is a free, open source, lightweight system monitoring tool designed to monitor as many services and system resources as possible.

With Monitorix you can perform system monitoring without a lot of hassle. And with the certainty that it consumes almost no resources and is easy to use.

Monitorix is an open-source project and, just like any other open-source project, anyone can contribute with his time and knowledge. So, you won’t have any licensing problems, and you will be able to use it in any circumstances.

Certainly Monitorix has been designed to perform a basic, simple, and fast monitoring of the Linux system, but it is useful on almost any server. For this reason, it is convenient to have it at hand to know how to use it.

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What can Monitorix do?

Well, Monitorix can monitor:

  • System load.
  • Active processes.
  • Memory allocation.
  • LM-Sensors and GPU temperatures
  • Nvidia and AMD Graphics
  • Disk drive temperatures and health
  • ZFS statistics
  • Network traffic and usage

And many other things like mail server, FTP, and file systems. It even monitors database servers like PostgreSQL.

So, let’s go for it.

Install Monitorix on Debian

Fortunately, Monitorix provides great support for Debian and its derivatives, and that’s why you can find it in the official Debian repositories.

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Therefore, open a terminal or connect via SSH to it and make sure to update the system

sudo apt update
sudo apt upgrade

Then, you can install it with the following command

sudo apt install monitorix
Install Monitorix on Debian
Install Monitorix on Debian

This will not only install the application itself, but also all the PERL modules required for it to work. So, you will see a long output screen, but the application is simple.

Configuring Monitorix

The first thing is to know if Monitorix is installed correctly and its service is running. To achieve this, run the following command:

systemctl status monitorix

You should get a screen output like this

Monitorix status
Monitorix status

By default, when you install Monitorix, it comes with an out-of-the-box configuration file that actually does its job. However, if you want to edit it, it is this

/etc/monitorix/monitorix.conf

Before editing it, make a backup

sudo cp /etc/monitorix/monitorix.conf /etc/monitorix/monitorix.conf.bak

and edit it with your favorite text editor

sudo nano /etc/monitorix/monitorix.conf

To get further information about this file what you can do, the most convenient thing to do is to check the documentation of Monitorix.

One thing to note is that Debian also includes the /etc/monitorix/conf.d/00-debian.conf file, which, although it has a lower priority than the main file, can overwrite some configurations. Especially those that are ported to Debian.

When you are done making the changes, you can restart the service to apply the changes

sudo systemctl restart monitorix

Access Monitorix

Then, open any web browser and go to http://your-server:8080/monitorix.

You will see the following:

Monitorix on Debian
Monitorix on Debian

Then, you will be shown all the graphs that you can consult.

Using Monitorix to check the system
Using Monitorix to check the system

Conclusion

In this post, you learned how to install Monitorix. The goal is to do a simple server monitoring using this tool.

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