Linux Server Real-Time Monitoring with Glances
Today I’m going share a tool to monitor any Linux server in real-time. The tool is Glances. Glances is a cross-platform system monitoring tool written in Python. We can install it on our server in some ways. Let’s start.
Table of Contents
Step 1 : Install Python
As Glances is written in Python, we need to install Python on our server. Let’s do this:
# CentOS/RHEL:
sudo yum install python python-devel
# Ubuntu
sudo apt-get install python python-devStep 2 : Install Using Official Script
The easiest way to install Glances on a server using their official script. The latest version of Glances will be installed. Just run this command:
sudo curl -L https://bit.ly/glances | /bin/bash
# or,
sudo wget -O- https://bit.ly/glances | /bin/bashThis script supports most of the Linux distributions. If it doesn’t work on your server, then please follow another method.
Step 3 : Install from Repository
Ubuntu Server: Glances is available with the default Ubuntu repository. Just run this command to install:
sudo apt-get install glancesCentOS/RHEL Server: On CentOS/RHEL, Glances is available with EPEL repository. Run the following command on your server:
# RHEL/CentOS 8:
sudo dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
# RHEL/CentOS 7:
sudo rpm -Uvh https://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm
# RHEL/CentOS 6 (64 Bit):
sudo rpm -Uvh http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
# RHEL/CentOS 6 (32 Bit):
sudo rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
After that run this command:
sudo yum install glancesStep 4 : Install Using PIP
If you have PIP installed on your server, then you are able to install Glances using PIP. Here’s the command:
sudo pip install glancesStep 5 : Glances Usage
We have successfully installed Glances on our machine. We can run Glances in 3 ways:
- Standalone Mode
- Client-Server Mode
- Web Server Mode
# Standalone Mode: If you want to monitor your local machine, then just run:
glancesYou’ll see a screen like this:
# Client-Server Mode: If you want to remotely monitor a machine, then this command on your machine:
glances -s
# Glances server is running on 0.0.0.0:61209Now from the remote machine, monitor your server by running this command:
glances -c IP_ADDRESS_OF_YOUR_SERVER# Web Server Mode: To run the glances in web server mode, execute the following command:
glances -w
# Glances web server started on http://0.0.0.0:61208/If you see an error like Bottle module not found. Glances cannot start in web server modethen install bottle using PIP:
sudo pip install bottleYou can also set the refresh rate of the page. To refresh the page every 20 seconds, just visit like this http://server-ip:61208/20.
The article is over. Thanks for reading. ?
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