Environment Specifications

• Operating System: CentOS 7.8
• Database: MariaDB or MySQL 5.7+
• Web Language: PHP 7.2+

Basic Hardware Requirements

Deployment Size	Platform	CPU / RAM	Database Storage	Monitored Hosts
Small	CentOS	Virtual Appliance	MySQL InnoDB	Up to 100
Medium	CentOS	2 Cores / 2 GB	MySQL InnoDB	Up to 500
Large	RHEL	4 Cores / 8 GB	RAID10 MySQL/PostgreSQL	1000+
Very Large	RHEL	8 Cores / 16 GB	Fast RAID10 MySQL/PostgreSQL	10000+

System Preparation

To begin, disable SELinux and the system firewall, then reboot.

sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
systemctl stop firewalld
systemctl disable firewalld
shutdown -r now

Adding the Package Repository

Add the Zabbix repository. To mitigate slow network speeds, use a mirror like Alibaba Cloudd.

rpm -Uvh https://mirrors.aliyun.com/zabbix/zabbix/5.0/rhel/7/x86_64/zabbix-release-5.0-1.el7.noarch.rpm

Update the repository configuration file to use the mirror URL.

sed -i 's#http://repo.zabbix.com#https://mirrors.aliyun.com/zabbix#g' /etc/yum.repos.d/zabbix.repo
yum clean all
yum makecache

Package Installation

Install the core Zabbix server and agent components.

yum install -y zabbix-server-mysql zabbix-agent

Since Zabbix 5.0 requires a newer PHP version, install the Software Collections (SCL) repository to access it.

yum install -y centos-release-scl

Enable the Zabbix frontend repository by editing /etc/yum.repos.d/zabbix.repo. Locate the [zabbix-frontend] section and change the enabled value from 0 to 1. Then, install the web frontend packages.

yum install -y zabbix-web-mysql-scl zabbix-apache-conf-scl

Install the MariaDB database server.

yum install -y mariadb-server

Database Configuration

Start the MariaDB service and enable it to launch on system boot.

systemctl start mariadb
systemctl enable mariadb

Secure the database installation by setting a root password. Follow the interactive prompts.

mysql_secure_installation

Log into the MySQL shell as the root user and create the Zabbix database and a dedicated user.

mysql -u root -p
CREATE DATABASE zbx_db CHARACTER SET utf8 COLLATE utf8_bin;
CREATE USER 'zbx_user'@'localhost' IDENTIFIED BY 'YourSecurePassword123';
GRANT ALL PRIVILEGES ON zbx_db.* TO 'zbx_user'@'localhost';
FLUSH PRIVILEGES;
EXIT;

Import the initial Zabbix database schema and data.

zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzbx_user -pYourSecurePassword123 zbx_db

Service Configuration

Configure the Zabbix server to use the correct database password. Edit /etc/zabbix/zabbix_server.conf.

# Find and modify the DBPassword line
DBPassword=YourSecurePassword123

Set the correct PHP timezone for the web frontend. Edit /etc/opt/rh/rh-php72/php-fpm.d/zabbix.conf.

php_value[date.timezone] = Asia/Shanghai

Starting Services

Restart all necessary services and enable them to start automatically.

systemctl restart zabbix-server zabbix-agent httpd rh-php72-php-fpm
systemctl enable zabbix-server zabbix-agent httpd rh-php72-php-fpm

Web Interface Setup

The Zabbix web interface is now accessible via a browser at http://<your-server-ip>/zabbix. Follow the on-screen setup wizard.

1. Verify that all pre-requisites are met on the initial check page.
2. Enter the database connection details:
   • Database Type: MySQL
   • Database Host: localhost
   • Database Port: 3306
   • Database Name: zbx_db
   • User: zbx_user
   • Password: YourSecurePassword123
3. Configure the server details (name, port).
4. Review the installation summary and complete the setup.
5. Log in to the Zabbix frontend using the default credentials:
   • Username: Admin
   • Password: zabbix