Installing Zabbix on CentOS 7

Zabbix is an open-source monitoring software that allows you to monitor your network, servers, and applications in real-time. It provides a wide range of monitoring features with support for various monitoring protocols and databases.

Here are the steps to install Zabbix on CentOS 7:

1. Update the system packages:

   sudo yum update -y

2. Add the Zabbix repository by creating a file:

   sudo vi /etc/yum.repos.d/zabbix.repo

   Add the following content to the file and save it:

   [zabbix]     name=Zabbix Official Repository - $basearch     baseurl=https://repo.zabbix.com/zabbix/4.4/rhel/7/$basearch/     enabled=1     gpgcheck=1     gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591

3. Install Zabbix server, frontend, and agent packages:

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

4. Install the MySQL/MariaDB database server:

   sudo yum install -y mariadb mariadb-server

5. Start and enable the MariaDB service:

   sudo systemctl start mariadb

   sudo systemctl enable mariadb

6. Secure the MariaDB installation:

   sudo mysql_secure_installation

   Follow the prompts and set a secure root password.
7. Create a new database and user for Zabbix:

   sudo mysql -u root -p

   CREATE DATABASE zabbix character set utf8 collate utf8_bin;

   CREATE USER 'zabbix'@'localhost' IDENTIFIED BY 'your_password';

   GRANT ALL PRIVILEGES ON zabbix.* TO 'zabbix'@'localhost';

   FLUSH PRIVILEGES;

   quit;

8. Import the Zabbix database schema:

   sudo zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -u zabbix -p zabbix

   Enter the password for the 'zabbix' user when prompted.
9. Edit the Zabbix server configuration file:

   sudo vi /etc/zabbix/zabbix_server.conf

   Update the following lines:

   DBHost=localhost

   DBName=zabbix

   DBUser=zabbix

   DBPassword=your_password

   Save and exit the file.
10. Start and enable the Zabbix server and agent services:

    sudo systemctl start zabbix-server

    sudo systemctl enable zabbix-server

    sudo systemctl start zabbix-agent

    sudo systemctl enable zabbix-agent

After completing these steps, you can access the Zabbix web interface by opening a web browser and entering your server's IP address or domain name followed by "/zabbix" (e.g., http://your_server_ip/zabbix). Follow the web-based installation wizard to finish the setup.

Zabbix allows you to monitor various aspects of your network, servers, and applications, including CPU usage, memory usage, network traffic, disk space, and more. It provides real-time monitoring, alerting, and reporting capabilities to help you proactively manage and troubleshoot your infrastructure.