Zabbix Server on Rocky Linux 9 – Stable Enterprise Monitoring on a RHEL-Compatible Platform

Zabbix Server is a powerful open-source monitoring platform that enables real-time performance tracking, alerting, and reporting across IT infrastructure. Deploying Zabbix on Rocky Linux 9—a 1:1 binary-compatible RHEL alternative—provides a secure, predictable, and enterprise-ready foundation for large-scale observability solutions.

Why Use Rocky Linux 9 for Zabbix?

Rocky Linux 9 is a robust choice for enterprise monitoring for the following reasons:

  • Binary compatibility with RHEL 9, ideal for regulated and mission-critical environments
  • 10-year lifecycle support, ensuring long-term system stability
  • Linux Kernel 5.14, optimized for performance, namespaces, and control groups (cgroups v2)
  • SELinux (enforcing), default security framework fully compatible with Zabbix components
  • Systemd v250+, integrated with logging, service dependencies, and secure execution
  • dnf & EPEL support, for installing Zabbix from official repositories with minimal friction

These attributes make Rocky Linux 9 a suitable base OS for both centralized Zabbix servers and distributed monitoring nodes.

Zabbix Server Architecture on Rocky Linux

Zabbix on Rocky Linux 9 follows a modular, scalable architecture:

  • Zabbix Server – Central daemon that aggregates data, evaluates triggers, and generates alerts.
  • Zabbix Frontend – Web-based interface (PHP-based) hosted via Apache or NGINX.
  • Zabbix Agents – Installed on monitored hosts to gather CPU, memory, disk, and application metrics.
  • Zabbix Proxy (optional) – Offloads data collection in large or geographically distributed networks.
  • Database Backend – Uses PostgreSQL, MariaDB, MySQL, or Oracle for storing configuration and historical data.

Each component integrates with Rocky Linux’s system-level tools like systemd, firewalld, SELinux, and logrotate.

Core Features Supported on Rocky Linux 9

FeatureDescription
Agent & Agent2 supportCollect system metrics with advanced plugins (Agent2)
SNMP, JMX, IPMI, HTTPMonitor hardware, Java services, and web endpoints natively
Custom scriptingExecute remote or local scripts for flexible checks
Auto-discoveryDetect new hosts, interfaces, and services dynamically
Web scenariosSimulate HTTP transactions to monitor uptime and response times
Built-in notificationsSupports email, SMS, Telegram, Slack, Webhooks, and escalation logic
TemplatesReusable monitoring configurations for OS, network devices, apps, and DBs

Zabbix’s flexible design supports both horizontal and vertical scaling across Rocky Linux environments.

Use Cases in Production

Zabbix Server on Rocky Linux 9 is well-suited for:

  • Enterprise IT monitoring – Full visibility over Linux, Windows, virtual machines, and network equipment
  • Telecom and ISP infrastructure – Scalable with proxies and optimized polling
  • Cloud hybrid environments – Native support for AWS, Azure, and GCP with auto-discovery templates
  • Security-conscious deployments – Uses SELinux, TLS/PSK, and system hardening for compliance
  • Distributed monitoring – Monitor remote networks or locations via Zabbix Proxies

The OS’s low churn and RHEL alignment help ensure minimal maintenance cycles and predictable performance over time.

Performance Considerations

Rocky Linux 9 provides kernel and system-layer features that enhance Zabbix Server performance:

AreaOptimization Notes
Database I/OUse PostgreSQL 15 or tuned MariaDB for heavy metrics ingestion
Polling tuningAdjust StartPollers, StartTrappers, CacheSize, and HistoryStorageDateIndex
PHP 8.1+Enhances performance of the web frontend with OPcache and FPM support
Service orchestrationUse systemd dependencies for startup and restart reliability

Rocky Linux’s conservative updates mean that once tuned, performance remains stable across minor releases.

Security Features and Hardening

Rocky Linux 9 is security-focused by design. Key features include:

FeatureIntegration with Zabbix
SELinuxEnforced by default, restricts access to binaries, ports, and files
FirewalldManages access to TCP ports 10050 (agent) and 10051 (server)
TLS & PSKSecures communication between server, agents, and proxies
AuditdLogs configuration and runtime access events for traceability
OpenSCAPAssesses compliance with industry benchmarks (CIS, DISA STIG)

These features ensure that Zabbix on Rocky Linux meets security and compliance standards in enterprise, financial, and government sectors.

Comparison with Other Operating Systems

FeatureRocky Linux 9Ubuntu 24.04Debian 12
Kernel5.14 (RHEL-based)6.8 (mainline LTS)6.1 (LTS)
Security FrameworkSELinux (Enforcing)AppArmorAppArmor
Release ModelConservativeSemi-rolling LTSConservative
Ideal Use CaseEnterprise & RHEL parityCloud-native & DevOpsMinimalist & stable
Package FreshnessModerate (via EPEL)HighModerate

Rocky Linux 9 is ideal for environments that prioritize system integrity, long-term compatibility, and predictable performance.

Zabbix Server on Rocky Linux 9 offers a mature and reliable monitoring platform built on top of a hardened, RHEL-compatible OS. It’s particularly effective for infrastructure monitoring in regulated or enterprise-grade IT environments where stability, supportability, and security are critical.

With its scalable architecture and support for distributed proxies, database tuning, and strong access controls, this stack provides everything needed to build a long-term, maintainable observability solution.

Step 1: Set Up a Server Instance on Shape.Host

Begin by launching a clean Rocky Linux 9 VPS. Shape.Host provides fast and reliable VPS hosting with full root access, ideal for deploying Zabbix monitoring solutions.

Create Your VPS:

Go to https://shape.host and log in.

Click “Create” from the dashboard.

Choose “Instance” as the resource type.

Shape.host Resources dashboard with Create > Instance highlighted.

Choose a preferred data center location.

Shape.host instance form with the data center location selector highlighted.

Select Rocky Linux 9 (64-bit) as the operating system.

Pick a plan with at least 2 CPUs, 2 GB RAM, and 20 GB SSD.

Shape.host instance form with the operating system image selector highlighted.

Click “Create Instance”.

Shape.host instance form with the Create Instance button highlighted.

After deployment, copy the IP address listed in the Resources section.

Shape.host Resources dashboard with the server IP address highlighted.

Connect to Your Instance

On Linux/macOS:

ssh root@your_server_ip

On Windows (using PuTTY):

  1. Download PuTTY.
  2. Paste your instance IP into the Host Name field.
  3. Use port 22 and set connection type to SSH.
  4. Click Open and log in as root.

Step 2: Install Zabbix and Dependencies

1. Update the system:

dnf update
Terminal showing DNF/YUM package management commands and output.

2. Add the official Zabbix 6.4 repository:

dnf install https://repo.zabbix.com/zabbix/6.4/rhel/9/x86_64/zabbix-release-6.4-1.el9.noarch.rpm
Terminal showing DNF/YUM package management commands and output.

3. Disable EPEL to avoid potential conflicts:

dnf config-manager --set-disabled epel

4. Install Zabbix server, frontend, agent, and MariaDB:

dnf --disablerepo=epel install zabbix-server-mysql zabbix-web-mysql zabbix-apache-conf zabbix-sql-scripts zabbix-agent mariadb mariadb-server
Terminal showing DNF/YUM package management commands and output.

Step 3: Configure the Database

1. Start and enable MariaDB:

systemctl enable --now mariadb
Terminal showing systemd service management commands or output.

2. Secure MariaDB installation:

mysql_secure_installation
Terminal showing mariadb commands or output during Secure MariaDB installation:.

3. Create the Zabbix database and user:

mysql -u root -p

Inside the MariaDB shell:

CREATE DATABASE zabbix CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
CREATE USER zabbix@localhost IDENTIFIED BY 'StrongPassword';
GRANT ALL PRIVILEGES ON zabbix.* TO zabbix@localhost;
FLUSH PRIVILEGES;
EXIT;
Terminal showing SQL database and user configuration commands.

Step 4: Import Zabbix Schema

Import the initial schema to the Zabbix database:

zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql -u zabbix -p zabbix

Enter the password StrongPassword when prompted.

Terminal showing SQL database import commands.

Step 5: Configure Zabbix Server and PHP

1. Configure Zabbix server to use the database password:

nano /etc/zabbix/zabbix_server.conf

Find and set:

DBPassword=StrongPassword
Terminal showing application configuration fields.

2. Set timezone in PHP configuration:

nano /etc/php.ini

Find and set:

date.timezone = Europe/Bucharest
Terminal showing PHP configuration settings.

Step 6: Configure the Firewall

1. Enable and start firewalld:

systemctl unmask firewalld
systemctl enable firewalld
systemctl start firewalld

2. Allow necessary ports:

firewall-cmd --permanent --add-service=http
firewall-cmd --permanent --add-service=https
firewall-cmd --permanent --add-port=10051/tcp
firewall-cmd --reload
Terminal showing systemd service management commands or output.

Step 7: Start and Enable Zabbix Services

1. Restart all required services:

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

2. Enable them to start on boot:

systemctl enable zabbix-server zabbix-agent httpd php-fpm
Terminal showing systemd service management commands or output.

Step 8: Access Zabbix Web Installer

Visit the following address in your web browser:

http://your-server-ip/zabbix

Follow the installation wizard to:

  • Verify prerequisites
  • Enter DB details (zabbix / StrongPassword)
  • Set server name and timezone
  • Finish the setup

Sure! Here’s the shortened Zabbix web installer guide for Rocky Linux 9:

Zabbix Web Installer

1. Welcome

  • Open in browser: http://<your-ip>/zabbix/setup.php
  • Choose your preferred language
  • Click Next step
Zabbix setup interface.

2. Check of pre-requisites

  • Zabbix checks PHP version, extensions, limits
  • All values should show OK
  • Click Next step
Zabbix setup interface.

3. Configure DB Connection

  • Enter:
    • Database type: MySQL/MariaDB
    • Host: localhost
    • Port: 0 (default)
    • Database name: zabbix
    • User: zabbix
    • Password: your DB password
  • Click Next step
Zabbix database connection settings.

4. Settings

  • Fill in:
    • Server name: e.g. Zabbix Rocky
    • Time zone: e.g. Europe/Bucharest
    • Theme: Blue (default) or your choice
  • Click Next step
Zabbix setup interface.

5. Pre-installation Summary

  • Review all settings carefully
  • Click Next step if correct
Zabbix setup interface.

6. Install

  • Installer creates the zabbix.conf.php file
  • Click Finish
Zabbix setup interface.

7. Login

  • Username: Admin
  • Password: zabbix (default)
  • Change the password after login for security
Zabbix sign-in form.

8. Global Dashboard

  • See metrics, host status, alerts, and geomap
  • Start configuring hosts and templates
Zabbix dashboard.

You have successfully installed and configured Zabbix Server 6.4 on Rocky Linux 9. With this setup, you can start monitoring servers, services, network hardware, and more.

For best performance and scalability, consider deploying Zabbix on Shape.Host Linux SSD VPS—secure, fast, and developer-friendly infrastructure.

Start now at https://shape.host.