Zabbix : Install Zabbix-Agent in Ubuntu

 1. sudo wget https://repo.zabbix.com/zabbix/6.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_6.0-1+ubuntu20.04_all.deb

* Visit https://repo.zabbix.com/zabbix for latest version.

2. sudo dpkg -i zabbix-release_6.0-1+ubuntu20.04_all.deb

3. sudo apt-get update

4. sudo apt-get install zabbix-agent -y

5. sudo nano /etc/zabbix/zabbix-agentd.conf

        --> Server = [Zabbix Server IP Address]

        --> ServerActive = [Zabbix Server IP Address]

        --> Hostname = [Ubuntu Client Hostname]

6. sudo systemctl restart zabbix-agent

7. sudo systemctl enable zabbix-agent

8. sudo systemctl status zabbix-agent

9. sudo ufw allow 10050/tcp          * check status --> sudo ufw status

OR --> sudo iptables -A INPUT -p tcp -s [Zabbix server IP address] --dport 10050 -m state --state NEW,ESTABLISEHD -j ACCEPT

* Some firewall may block or NAT the address, thus instead of using the Zabbix server IP address, use the firewall IP address.

10. Use another PC to browse the zabbix server (eg. http://[Zabbix Server IP Address]/zabbix) and login using your admin's credentials.

11. Continue to add the client into the monitoring --> Configuration --> Hosts --> Create Host

        --> Add --> Agent --> Linux with Zabbix Agent