Glances is a cross-platform curses-based system monitoring tool written in Python. Basically, Glances provide information regarding memory, CPU, Disk IO, file system, Uptime, processes, interfaces, alerts & many other system information.

Here at Fixwebnode, as part of our Server Management Services, we regularly help our Customers to perform related Linux System Monitoring queries.

In this context, we shall look into how to install Glances on AlmaLinux 8.

Steps to Install Glances on AlmaLinux 8

1. Perform System Update

To begin, make sure that your system is up-to-date and python packages installed:

$ sudo dnf update
$ sudo dnf install epel-release
$ sudo dnf install python3 python3-jinja2 python3-psutil python3-setuptools hddtemp python3-pip lm_sensors

2. Install Glances on the system

By default, Glances is available in the AlmaLinux 8 base repository. Now we install Glances using the following command below:

$ sudo dnf install glances

3. Configure Firewall

Now we add a Firewall rule so that the web console would be accessible:

$ sudo firewall-cmd --zone=public --add-port=61208/tcp --permanent
$ sudo firewall-cmd --reload

How to access Glances System Monitoring on AlmaLinux ?

Once successfully installed, we can use it for real-time Linux monitoring by opening the terminal & running the following command below:

$ glances

How to access Glances Web Interface ?

A cool feature in glances is the ability to render the metrics on a web browser, just run the glances with the -w option:

$ glances -w

Output:

[root@linuxapt.com ~]# glances -w
Glances Web User Interface started on http://0.0.0.0:61208/

If you see an error like Bottle module not found. Glances cannot start in web server mode then install bottle using PIP:

$ sudo pip install bottle

Now, open your web browser and access your website using the URL http://your-server-ip-address:61208/. 

You should see the Glances default page.

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