July 10, 2025

How to Install Zabbix Agent on Linux and Windows

Ayub Huruse

IT Specialist

The Zabbix Agent efficiently collects system metrics from Linux and Windows hosts and forwards them to Nagios XI using the Zabbix Agent Wizard. Follow the steps below to install on CentOS 9 (Linux) and Windows Server 2019/2022.

Prerequisites

Linux: root or sudo access
Windows Server 2019/2022: local administrator
Internet connectivity
Zabbix server/proxy IP (e.g., 192.168.1.100)

Part 1: Install Zabbix Agent on Linux

1. Update system.

sudo dnf update -y

sudo dnf update -y

2. Add Zabbix repository.

Choose your distribution/version here: Zabbix Linux downloads.

sudo rpm -Uvh https://repo.zabbix.com/zabbix/7.0/rhel/9/x86_64/zabbix-release-7.0 1.el9.noarch.rpm 
sudo dnf clean all

sudo rpm -Uvh https://repo.zabbix.com/zabbix/7.0/rhel/9/x86_64/zabbix-release-7.0 1.el9.noarch.rpm 
sudo dnf clean all

3. Install agent.

sudo dnf install -y zabbix-agent2

sudo dnf install -y zabbix-agent2

4. Configure agent.
Edit /etc/zabbix/zabbix_agent2.conf and set:

Server=192.168.1.100 
ServerActive=192.168.1.100 
Hostname=LinuxServer01

Server=192.168.1.100 
ServerActive=192.168.1.100 
Hostname=LinuxServer01

5. Start and enable service.

sudo systemctl enable --now zabbix-agent2

sudo systemctl enable --now zabbix-agent2

6. Open firewall.

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

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

Part 2: Install Zabbix Agent on Windows

1. Download agent.

Visit the Zabbix downloads page and get the latest Windows installer here: Zabbix Windows agents

2. Run installer.

Double-click the downloaded .exe to launch the Wizard
Click Next to continue

3. Accept License Agreement.

Zabbix user agreement. — License Agreement.

4. Choose installation folder.

Zabbix installation. — Custom setup location.

5. Configure during setup.

Server IP: 192.168.1.100
Active checks: 192.168.1.100
Hostname: WindowsServer01
Enable the check box for Add agent location to the PATH
Click Install, then Finish

Zabbix configuration setup. — Configuration setup.

6. Verify service.

sc query "Zabbix Agent 2"

sc query "Zabbix Agent 2"

7. Allow firewall.

Open Windows Defender Firewall → Inbound Rules → New Rule → Port → TCP 10050 → Allow → All profiles → Name: Zabbix Agent 2

Verification & Troubleshooting

Check	Command / Location
Linux agent status	`sudo systemctl status zabbix-agent2`
Windows agent service	`sc query "Zabbix Agent 2"`
Linux firewall ports	`sudo firewall-cmd --list-ports`
Windows firewall rule	Check Inbound Rule for TCP 10050 in Windows Defender Firewall
Agent logs (Windows)	`C:\Program Files\Zabbix Agent 2\zabbix_agent2.log`
Connectivity issues	Ensure Server IP and Hostname match in config and firewall allows TCP/10050

You’re all set! Your system is now ready to be monitored with Nagios XI. To learn more about the Zabbix Agent Wizard, take a look at this article: How to Use the Zabbix Agent Wizard in Nagios XI.