How to Install Zabbix Monitoring Tool on AlmaLinux 9

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Zabbix is an open-source monitoring tool for enterprise-level IT environments, including servers, networks, applications, and services. This guide will walk you through the installation and configuration process on AlmaLinux 8.

Prerequisites

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• A server running AlmaLinux 9
• MySQL or MariaDB installed and configured

Update the System

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First, update the system packages to ensure everything is up-to-date:

dnf update -y

Install and Configure MySQL

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Install MySQL server,

dnf install mysql-server -y

Start and enable MySQL,

systemctl start mysqld
systemctl enable mysqld

Secure the installation (set root password, remove anonymous users, disallow remote root login, etc.):

mysql_secure_installation

Install Zabbix

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Disable Zabbix packages provided by EPEL: Edit /etc/yum.repos.d/epel.repo and add the following line under the [epel] section:

excludepkgs=zabbix*

Install the official Zabbix repository,

rpm -Uvh https://repo.zabbix.com/zabbix/7.2/release/alma/9/noarch/zabbix-release-latest-7.2.el9.noarch.rpm
dnf clean all

Install Zabbix Server, Frontend, and Agent,

dnf install zabbix-server-mysql zabbix-web-mysql zabbix-nginx-conf zabbix-sql-scripts zabbix-selinux-policy zabbix-agent -y

Configure MySQL for Zabbix

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Create the Zabbix database and user,

mysql -uroot -p

Run the following SQL commands,

CREATE DATABASE zabbix CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
CREATE USER 'zabbix'@'localhost' IDENTIFIED BY 'Your_Password_Here';
GRANT ALL PRIVILEGES ON zabbix.* TO 'zabbix'@'localhost';
SET GLOBAL log_bin_trust_function_creators = 1;
QUIT;

Note: Replace Your_Password_Here with actual strong password

Import the initial schema and data,

zcat /usr/share/zabbix/sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p zabbix

Disable the log_bin_trust_function_creators option after importing:

mysql -uroot -p

Run,

SET GLOBAL log_bin_trust_function_creators = 0;
QUIT;

Configure Zabbix

Update the Zabbix server configuration file,

nano /etc/zabbix/zabbix_server.conf

Set the database password,

DBPassword=Your_Password_Here

Configure PHP for the Zabbix frontend: Edit the Nginx configuration file,

nano /etc/nginx/conf.d/zabbix.conf

Uncomment and update the following lines,

listen 8080;
server_name example.com;

Start Zabbix and Related Services

Start the Zabbix server, agent, and other required services,

systemctl restart zabbix-server zabbix-agent nginx php-fpm

Enable them to start on boot,

systemctl enable zabbix-server zabbix-agent nginx php-fpm

Configure the Firewall

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Allow traffic on port 8080 for the Zabbix frontend:

firewall-cmd --add-port=8080/tcp --permanent
firewall-cmd --reload

Open Zabbix UI Web Page

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Once the services are started, you can access the Zabbix web frontend via your browser by navigating to the following URL,

http://your-server-ip-or-domain:8080

Follow the on-screen instructions to complete the Zabbix frontend installation. Below are the steps with corresponding screenshots for a clear walkthrough:

• Zabbix Version and Language Selection, The first page will prompt you to select your desired language for the installation. It will also show the Zabbix version being installed.

• PHP Versions and Options Check Next, Zabbix will check if the required PHP versions and options are installed on your system. Make sure all requirements are met to proceed.

• Configure Database Connection You will then be prompted to configure the database connection. Enter the database details such as the database name, user, and password that were created earlier.

• Configure Server Name, Time Zone, and Default Theme In this step, you will set the server name, time zone, and choose the default theme for the Zabbix frontend.

• Pre-Installation Summary The system will display a summary of the configurations and checks before starting the installation process.

• Installation Process Zabbix will begin the installation process. Once it’s completed, the system will show a success message indicating the installation was successful.

• Login to Zabbix After installation, you will be prompted to log in. Use the default credentials to access the Zabbix dashboard.

• Username: Admin
• Password: zabbix

Click Login to proceed.

• Zabbix Dashboard Once logged in, you will be directed to the Zabbix dashboard, where you can begin configuring and monitoring your systems.

With these steps and screenshots, you should have a complete guide to accessing and setting up the Zabbix UI.