Install Zabbix in Centos7
We all need a monitoring tool to monitor our infrastructure. But to purchasing a monitoring tool will be costly. Today we will learn, how can we configured our own monitoring tool with a most popular open-source tool "Zabbix".
Lets start installing Zabbix in Centos7.
Let Assuming you have a Centos 7 Linux server.
Step 1: Disable SELinux
Open SELinux configuration and edit the file:
1vim /etc/sysconfig/selinux
Change “SELINUX=enforcing” to “SELINUX=disabled” Save and exit the file. Then reboot the system.
1reboot
Step 2: Update all packages
1yum update -y
Step 3: Install Apache
Use below command to install Apache:
1yum -y install httpd
Check service status:
1systemctl status httpd.service
If Apache service is in stopped state, start the service manually.
1systemctl start httpd.service
Enable Apache service on system boot.
1systemctl enable httpd
Step 4: Install PHP and other dependencies:
- Before installing PHP packages, we need to enable the EPEL repo. So, Let install epel and remi repos.
1yum -y install epel-release
2yum -y install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
- Disable PHP 5 repositories and enable PHP 7.2 repo.
1yum-config-manager --disable remi-php54
2yum-config-manager --enable remi-php72
- Now, Start install PHP packages:
1yum install php php-pear php-cgi php-common php-mbstring php-snmp php-gd php-pecl-mysql php-xml php-mysql php-gettext php-bcmath
Step 5: Modify the PHP time Zone by editing the php.ini file.
- Open the php.ini file:
1vim /etc/php.ini
- Uncomment the following line and add your time zone.
1date.timezone = Asia/Kolkata
Step 6: Install Database (MariaDB).
- Install MariaDB :
1yum --enablerepo=remi install mariadb-server
- Start the MariaDB service:
1systemctl start mariadb.service
- Enable MariaDB on system boot:
1systemctl enable mariadb
- Run the following command to secure MariaDB:
1mysql_secure_installation
-
Add a new root password and continue. Then it will ask a few questions. Type “Y” to agree to that.
-
Login to DB server and verify.
1 mysql -u root -p
Step 7: Create a Database for Zabbix.
- Enter in database:
1mysql -u root -p
- Create database:
1Create database ZabbixDatabase;
- Create a Database user for zabbix and grant privileges:
1create user 'zabbixDBuser'@'localhost' identified BY 'zabbixpassword@123';
2grant all privileges on ZabbixDatabase.* to zabbixDBuser@localhost ;
- Flush privileges:
1flush privileges;
Step 8: Now Install Zabbix and needed dependencies:
- Add Zabbix repository. Copy the latest download URL from the official website. Paste it in the below command appropriately.
1rpm -ivh https://repo.zabbix.com/zabbix/4.2/rhel/7/x86_64/zabbix-release-4.2-2.el7.noarch.rpm
- Install Zabbix and its dependencies:
1yum install zabbix-server-mysql zabbix-web-mysql zabbix-agent zabbix-get
Step 9: Lets configure the Zabbix
- Change Time Zone by editing the Zabbix Apache configuration file.
1vim /etc/httpd/conf.d/zabbix.conf
- Uncomment the following line and add your Time-Zone.
1php_value date.timezone Asia/Kolkata
- Restart apache service:
1Service httpd Restart
Step 10: Upload database schema.
-
Zabbix installation package gives you a SQL file which includes an initial schema and data for the Zabbix server with MySQL.
-
Change directory and go the Zabbix directory.
1cd /usr/share/doc/zabbix-server-mysql-4.0.4/
- Import the MySQL dump file:
1zcat create.sql.gz | mysql -u zabbixDBuser -p ZabbixDatabase
Step 11: Now modify the Zabbix configuration file:
- Open Zabbix configuration file:
1vim /etc/zabbix/zabbix_server.conf
- Modify the following parameters:
1DBHost=localhost
2DBName=ZabbixDatabase
3DBUser=zabbixDBuser
4DBPassword=zabbixpassword@123
Then save and exit the file.
- Restart Zabbix service.
1service zabbix-server Restart
- Enable Zabbix on system boot.
1 systemctl enable zabbix-server.service
- Now restart httpd service.
1service httpd Restart
Step 12: Final Setup Zabbix
- You can access Zabbix using following URL: http://Server-Host-Name Or IP /zabbix/
- You should see the welcome page.
- Click on Next, then zabbix will check installed PHP, MySQL/MariaDB versions and parameters, etc.
- If you see any parameter failing, you have to modify the parameters, restart the apache service and refresh the page. Note: for PHP parameter you have to modify (/etc/php.ini) file.
- After this, Click Next to complete the installation.