Step 1

Prerequisites

Upon accessing your server, it is essential to upgrade to the most recent available packages.

apt-get update -y

Step 2

Setting up LAMP Server

To begin, we must install Apache, MariaDB, PHP, and additional required extensions.

apt-get install apache2 libapache2-mod-php mariadb-server php php-mbstring php-gd php-xml php-bcmath php-ldap php-mysql unzip curl gnupg2 -y

After installing all the packages, it’s necessary to modify the php.ini file by making certain adjustments.

nano /etc/php/7.4/apache2/php.ini

Modify the following settings according to your preferences, or you can opt for the same configurations as provided in the example.

memory_limit 256M
upload_max_filesize 16M
post_max_size 16M
max_execution_time 300
max_input_time 300
max_input_vars 10000
date.timezone = REGION/STATE

Save the file and restart the Apache service.

systemctl restart apache2

The changes will now be applied.

Step 3

Establishing a Database for Zabbix

Next, we must generate a database and user for Zabbix. Initially, log in to the MariaDB shell.

mysql

Now, proceed to create a database and user for Zabbix. Ensure to replace the password with your chosen one, which you’ll be using.

CREATE DATABASE zabbixdb character set utf8 collate utf8_bin;
CREATE USER 'zabbixuser'@'localhost' IDENTIFIED BY 'password';

Subsequently, grant all privileges to the Zabbix database.

GRANT ALL PRIVILEGES ON zabbixdb.* TO 'zabbixuser'@'localhost' WITH GRANT OPTION;

Now flush the privileges and exit MariaDB.

FLUSH PRIVILEGES;
EXIT;

Step 4

Zabbix is not included in the default Ubuntu 20.04 repository, therefore, the repository must be installed initially.

wget https://repo.zabbix.com/zabbix/5.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_5.0-1+focal_all.deb
dpkg -i zabbix-release_5.0-1+focal_all.deb

Now, update the repository and proceed to install the Zabbix server.

apt-get update -y
apt-get install zabbix-server-mysql zabbix-agent zabbix-frontend-php zabbix-apache-conf -y

After all the packages are installed we need to start the Zabbix service. We will also enable the service to start after a reboot.

systemctl start zabbix-server
systemctl enable zabbix-server

Now we need to import the Zabbix database schema. You will need to enter the password created earlier.

cd /usr/share/doc/zabbix-server-mysql
zcat create.sql.gz | mysql -u zabbixuser -p zabbixdb

The zcat command may take several minutes to complete.

nano /etc/zabbix/zabbix_server.conf

Modify the following lines, ensuring to enter the password you created earlier. Uncomment (#) DBHost and DBPassword.

DBHost=localhost
DBName=zabbixdb
DBUser=zabbixuser
DBPassword=password

Save and close the file. Subsequently, restart both the Apache and Zabbix services.

systemctl restart zabbix-server
systemctl restart apache2

Step 5

Configuring the Zabbix Agent

To configure the Zabbix agent on our system, edit the zabbix_agentd.conf file.

nano /etc/zabbix/zabbix_agentd.conf

Change the following lines.

Server = 127.0.0.1
ServerActive = 127.0.0.1
Hostname = Zabbix Server

Save and close the file, then initiate the Zabbix agent service and enable it to ensure it starts automatically after a system reboot.

systemctl start zabbix-agent
systemctl enable zabbix-agent

Step 6

Access the Zabbix dashboard throught http://YOUR-SERVER-IP/zabbix You will be redirected to the Zabbix welcome page