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Install Zabbix Agent on AlmaLinux: Step-by-Step Guide

September 18, 2025

 

Installing a monitoring solution is crucial for maintaining the health and performance of servers. Zabbix is one of the most popular open-source monitoring tools, enabling users to track the status of various network components. For those using AlmaLinux, installing the Zabbix agent can provide critical insights into your system’s performance metrics. Here’s a step-by-step guide to help you install and configure the Zabbix agent on AlmaLinux.

Prerequisites

Before you begin the installation, ensure that you have:

  • A server running AlmaLinux
  • Sudo privileges to install packages
  • Access to the internet to download necessary components

Step 1: Update Your System

It’s always good practice to begin with updating your system. Run the following command to ensure all installed packages are up to date:

sudo dnf update -y

This command refreshes your package repository cache and updates existing packages to their latest versions.

Step 2: Add the Zabbix Repository

Zabbix provides a repository that simplifies the installation process. To add it, you need to download the Zabbix repository configuration file. Use the following command to download the appropriate repository for your version of Zabbix:

rpm -Uvh https://repo.zabbix.com/zabbix/6.0/rhel/8/x86_64/zabbix-release-6.0-1.el8.x86_64.rpm

Make sure to check the official Zabbix documentation for the latest links and version numbers.

Step 3: Install the Zabbix Agent

Once the repository is configured, you can install the Zabbix agent using the package manager. Use the command below to proceed with the installation:

sudo dnf install zabbix-agent -y

This command retrieves the Zabbix agent package from the repository and installs it on your AlmaLinux system.

Step 4: Configure the Zabbix Agent

After the installation is complete, you’ll need to configure the Zabbix agent. Open the configuration file with your preferred text editor:

sudo nano /etc/zabbix/zabbix_agentd.conf

In this file, you will need to make the following changes:

  • Server: Specify the IP address or hostname of your Zabbix server. For example:

    Server=192.168.1.100

  • Hostname: Change the hostname to match your server’s hostname. It can be set to the output of the hostname command:

    Hostname=your-server-hostname

Make sure to replace the values accordingly and save the file once you’re done.

Step 5: Start the Zabbix Agent

With the configuration in place, the next step is to start the Zabbix agent service. Use the following command to start the agent:

sudo systemctl start zabbix-agent

To ensure the agent starts automatically on boot, run:

sudo systemctl enable zabbix-agent

Step 6: Firewall Configuration

If your AlmaLinux server has a firewall enabled, you need to allow access to the Zabbix agent port, which is 10050 by default. Run the following command:

sudo firewall-cmd --add-port=10050/tcp --permanent
sudo firewall-cmd --reload

This configuration allows the Zabbix server to communicate with the agent.

Step 7: Verify Installation

To summarize your installation, you can verify if the Zabbix agent service is running properly with:

sudo systemctl status zabbix-agent

You should see active (running) in the output if everything has been set up correctly.

Conclusion

Installing the Zabbix agent on AlmaLinux is a straightforward process that offers valuable monitoring capabilities. By following the steps mentioned above, you can set up the agent to keep an eye on system performance and enhance your server management. Once installed and configured, you can head to your Zabbix server interface to start receiving data and insights from your AlmaLinux host. Regular monitoring will help you maintain system health, troubleshoot issues, and ensure optimal performance for your applications and services.

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