How to Install and Configure Zabbix on Ubuntu?

In this tutorial, we will install and configure Zabbix on Ubuntu. But before proceeding with the tutorial, let’s se what Zabbix is.

What is Zabbix?

Zabbix is a free, open-source enterprise grade tool that is very crucial for server administrators. It offers robust features to monitors server performance, network, server health, application and many other parameters in real-time that can help administrators to keep an eye on each and every problem. You can configure Zabbix to send an email for any problem that is arising on the server. Not only that, but you can use Zabbix to generate visualized data for monitoring purposes.

Right after the configuration, you can access Zabbix directly from the browser in the same way as any website. Zabbix can be used as an important tool to monitor IT infrastructure.

In this Tutorial, we will see

Benefits to use Zabbix

It’s Free and Open Source
Monitors each and every problem in real time
Highly scalable to monitor many devices
It’s web based, so no need to approach system administrator
Supports various platforms like Linux, Windows, Unix and network devices
Supports API integration to automate report generation and others
It supports alert mechanism which means you get alert as per your threshold limit
Adds security by enabling and monitoring real time system activity
Very easy implementation

Install and Configure Zabbix on Ubuntu

Installation and configuration of Zabbix is very easy and you can follow the steps below to configure it. We will use Nginx as our web server as it’s fast, performance oriented and use less resources. We will use PostgreSQL to the data generated by the server.

Prerequisites

A Ubuntu server with initial server configuration done
A user with sudo privileges

Step 1 – Update the System Repositories and Packages

The first step before configuring Zabbix is to update the repositories and packages. Let’s do that.

# sudo apt update
# sudo apt upgrade -y
# sudo apt --reinstall install dpkg -y

Step 2 – Install Nginx

Next, let’s install our web server.

# sudo apt install nginx -t

As the installation completes, we will enable the service

# sudo systemctl start nginx
# sudo systemctl enable nginx

Step 3 – Install PostgreSQL

To save the data generated by the server and analyze it later, we need to save the data somewhere. For that we will use PostgreSQL. Let’s install PostgreSQL.

# sudo apt install postgresql postgresql-contrib -y

Next, let’s create a database and a user

CREATE USER zabbix WITH PASSWORD 'password';
CREATE DATABASE zabbix OWNER zabbix;
\q

Note: Make sure to change database name "zabbix", database user "zabbix" and password "password" as per your need.

Step 4 – Install Zabbix Server, Agent and Frontend

Next step is to install Zabbix server, frontend and agent which will allow our web based app to work. Let’s first install Zabbix configuration package

# sudo curl -O https://repo.zabbix.com/zabbix/6.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_6.0-6+ubuntu24.04_all.deb
# sudo dpkg -i zabbix-release_6.0-6+ubuntu24.04_all.deb
# sudo dpkg -i zabbix-release_6.0-6+ubuntu24.04_all.deb
# sudo apt update

Next step is to install Zabbix server, agent and frontend

# sudo apt install zabbix-server-pgsql zabbix-frontend-php php8.3-pgsql zabbix-nginx-conf zabbix-sql-scripts zabbix-agent -y

Step 5 – Configure Database for Zabbix

Next step is to configure Zabbix to use our database that we have created in Step 3.

zcat /usr/share/zabbix-sql-scripts/postgresql/server.sql.gz | sudo -u zabbix psql zabbix

Now let’s configure Zabbix server to use our database

# sudo nano /etc/zabbix/zabbix_server.conf

Update the given below parameters in the file as per the credentials used in Step 3

DBName=zabbix
DBUser=zabbix
DBPassword=password

Note: Update the above parameters as per the details you have entered in step 3

Save and close the file.

Step 6 – Setup PHP for Zabbix Frontend

Open the file /etc/zabbix/nginx.conf and update the listen and server_name directives as shown below

server {
    listen 80;
    server_name zabbix.your_domain.com;
    ...
}

Note: Update "zabbix.your_domain.com" to your real domain name.

save and close the file

Let’s start the server and enable the service

# sudo systemctl start zabbix-server zabbix-agent nginx php8.3-fpm
# sudo systemctl enable zabbix-server zabbix-agent nginx php8.3-fpm

Step 7 – Configure Let’s Encrypt

We will use certbot as the tool to configure Let’s Encrypt SSL certificate. Let’s first install certbot

# sudo apt install certbot python3-certbot-nginx -y

Generate SSL certificate for your domain

# sudo certbot --nginx -d zabbix.your_domain.com

Note:- Make sure to change "zabbix.your_domain.com" to your real domain name.

Follow the prompts to generate the SSL certificate

Step 8 – Configuring the Firewall

Next step is to install and configure the firewall so that we can access our portal. So first let’s install UFW

# sudo apt install ufw -y

Let’s configure UFW rules

# sudo ufw allow http
# sudo ufw allow https
# sudo ufw reload

Step 10 – Setting up locale

Setting up locale in your server is very important, otherwise your setup won’t work.

# sudo apt-get install locales
# sudo locale-gen en_US.UTF-8
# sudo update-locale LANG=en_US.UTF-8

Now open “your_domain” on any browser and follow the gui based setup. Make sure to use the details as per our Step 3 while setting things up.

Conclusion

With this we have configured Zabbix on our Ubuntu server with PostgreSQL. Keep the server working for a couple of days so that some data is generated to analyze.