Zabbix 5.0 Configuration in RHEL 8 (CentOS 8) | Installation & Configuration of Zabbix 5 in Linux

Zabbix 5.0 Configuration in RHEL 8 (CentOS 8):
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Chapters:
0:00 Channel Intro
0:15 Zabbix Overview & Details
1:10 Zabbix 5 Pre-requesties
1:35 Making SELinux Permissive
2:00 Installing Required Packages For Zabbix
3:30 Installing MariaDB Packages & Starting Service
4:20 Reset Root Password For Database
5:35 Creating Database
6:15 Importing Initial Schema & Data
7:18 Enabling Strict Mode
7:45 Enter Zabbix Password in DB File
8:48 Starting & Enabling Zabbix Services
9:14 Adding Firewall Rules
10:10 Setting Timezone in Configuration File
10:58 Restart & Enable Apache Services
10:20 Configuring Zabbix Frontend

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Please check pinned comment for steps & details.
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setenforce 0 && sed -i 's/^SELINUX=.*/SELINUX=permissive/g' /etc/selinux/config
getenforce
clear
clear
dnf clean all
dnf -y install zabbix-server-mysql zabbix-web-mysql zabbix-apache-conf zabbix-agent
clear
dnf -y install mariadb-server && systemctl start mariadb && systemctl enable mariadb
clear
mysql_secure_installation
clear
mysql -uroot -p'rootDBpass' -e "create database zabbix character set utf8 collate utf8_bin;"
clear
mysql -uroot -p'rootDBpass' zabbix -e "set global innodb_strict_mode='OFF';"
mysql -uroot -p'rootDBpass' zabbix -e "set global innodb_strict_mode='ON';"
clear
systemctl restart zabbix-server zabbix-agent
systemctl enable zabbix-server zabbix-agent
clear
firewall-cmd --add-service={http,https} --permanent
firewall-cmd --add-port={10051/tcp,10050/tcp} --permanent
firewall-cmd --reload
clear
firewall-cmd --list-all
clear
systemctl restart httpd php-fpm
systemctl enable httpd php-fpm

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[NehraClasses]

Install & Configure Zabbix 5.0 in RHEL8/CentOS 8:


Zabbix is 100% free open-source ultimate enterprise-level software designed for monitoring availability
and performance of IT infrastructure components and services.

Configure SELinux to work in permissive mode:

setenforce 0 && sed -i /etc/selinux/config

Step 2: Install Zabbix server, frontend, and agent

Setup Zabbix 5 RPM package on CentOS 8, clean repo and install Zabbix server, frontend, and agent.
Zabbix 5.0 LTS version (supported until May, 2025)
dnf clean all
dnf -y install zabbix-server-mysql zabbix-web-mysql zabbix-apache-conf zabbix-agent

Step 3: Install and configure database

In this installation, I will use password rootDBpass as root password and zabbixDBpass as Zabbix password for DB. Consider changing your password for security reasons.
a. Install MariaDB

dnf -y install mariadb-server && systemctl start mariadb && systemctl enable mariadb

b. Reset root password for database

Secure MySQL by changing the default password for MySQL root:

mysql_secure_installation

Enter current password for root (enter for none): Press the Enter
Set root password? [Y/n]: Y
New password: <Enter root DB password>
Re-enter new password: <Repeat root DB password>
Remove anonymous users? [Y/n]: Y
Disallow root login remotely? [Y/n]: Y
Remove test database and access to it? [Y/n]: Y
Reload privilege tables now? [Y/n]: Y

c. Create database

Create a database for Zabbix directly from the terminal using these two commands:

mysql -uroot -p'rootDBpass' -e "create database zabbix character set utf8 collate utf8_bin;"

d. Import initial schema and data

Temporary disable strict mode (ZBX-16465) to avoid MySQL error “ERROR 1118 (42000) at line 1284: Row size too large (> 8126)” :

mysql -uroot -p'rootDBpass' zabbix -e "set global innodb_strict_mode='OFF';"

Import database shema for Zabbix server (could last up to 10 minutes):

Zabbix 5.0 LTS version
zcat | mysql -uzabbix -p'rootDBpass' zabbix

Enable strict mode:

mysql -uroot -p'rootDBpass' zabbix -e "set global innodb_strict_mode='ON';"

e. Enter database password in Zabbix configuration file

Open zabbix_server.conf file with command: “nano and add database password in this format anywhere in file:

DBPassword=zabbixDBpass

Save and exit file (ctrl+x, followed by y and enter).
Step 4: Start Zabbix server and agent processes

systemctl restart zabbix-server zabbix-agent
systemctl enable zabbix-server zabbix-agent

Step 5: Configure firewall

firewall-cmd --add-service={http, https} --permanent
firewall-cmd --add-port={10051/tcp, 10050/tcp} --permanent
firewall-cmd --reload

Step 6: Configure Zabbix frontend
a. Configure PHP for Zabbix frontend

Edit file “/etc/php-fpm.d/zabbix.conf” with command:

nano /etc/php-fpm.d/zabbix.conf

Uncomment line in zabbix.conf that starts with “; php_value date.timezone Europe/Riga” by removing symbol “;” and set the right timezone for your country, for example:

php_value date.timezone Europe/Amsterdam

Save and exit file (ctrl+x, followed by y and enter)
b. Restart Apache web server and make it start at system boot

systemctl restart httpd php-fpm
systemctl enable httpd php-fpm

c. Configure web frontend



Basically, in this wizard you only need to enter a password for Zabbix DB user and for everything else just click “Next step“. In this guide, I have used a zabbixDBpass as a database password, but if you set something else, be sure to enter the correct password when prompted by the wizard.
1. Installation step: Welcome screen1. Installation step: Welcome screen
2. Installation step: Pre-requisites check2. Installation step: Pre-requisites check
3. Installation step: Configure DB connection3. Installation step: Configure DB connection
4. Installation step: Configure Zabbix server4. Installation step: Configure Zabbix server
5. Installation step: Pre-installation summary5. Installation step: Pre-installation summary
6. Installation step: Finish6. Installation step: Finish

That’s it, you have installed Zabbix monitoring system!
Step 7: Login to frontend using Zabbix default login credentials

ZABBIX LOGIN PAGE

[abhaykumarsavita]

I got clear understanding by you, and Zabbix installed in one session. Awesome Video sir, Thanks sir fro provinding Free content to us.

[patrickcheng-kangchiang]

Just want to thank you for your clear video and instructions, that saves lots of time for me.
One small note - I am using your procedure for RHEL 8.4 with Zabbix 5.4. I was asked to install an extra package zabbix-sql-scripts, otherwise I cannot proceed to initialize the schema. For your reference.

[harispalegar]

Thank you sir..
As a promise you are teaching zabbix

Thank you sir

[podishettivikram]

thank you so much sir, i have installed it successfully

[sibinmorais]

In my qualys scan on zabbix server, it shows vulnerability which is web server uses plain text form based authentication..how can I resolve this issue..any help is very much appreciated

[podishettivikram]

Superb video sir, please make video on cacti server also .

[Woolovetoyou]

You have not shown the main part . How to add nodes & monitor them