How to Install and Configure Zabbix Agent on CentOS 8
On client machines, the Zabbix agent collects and sends data to the Zabbix server. As a result, in order for the server to function, all remote machines must be given with a client. Zabbix server was recently installed. We’ll walk through the steps to install and setup the Zabbix agent on CentOS 8 in this article.
Disabling SELinux
For Zabbix to perform properly, it is preferable to disable SELinux. So, open the configuration file.
$ sudo vim /etc/selinux/configSELINUX should be turned off
SELINUX=disabledSave and close the file before restarting the system.
Zabbix agent installation
To install the agent, first add the Zabbix repository.
rpm -Uvh https://repo.zabbix.com/zabbix/5.0/rhel/8/x86_64/zabbix-release-5.0-1.el8.noarch.rpm
dnf clean all
Let’s get the Zabbix agent package installed.
$ dnf install zabbix-agentNow launch the service and have it start automatically when the system boots up.
$ systemctl enable --now zabbix-agentConfiguring the Zabbix agent
Open the Zabbix configuration file in a text editor.
$ vim /etc/zabbix/zabbix_agentd.confDetermine and set the appropriate values for the following parameters:
Server=10.5.5.1
ServerActive=10.5.5.1
Hostname=client
The IP address of the Zabbix server must be included in the first two, and the Hostname is the name of the client that will appear in the server’s statistics.
The service should now be started.
$ systemctl restart zabbix-agentConfiguration of the firewall
For Zabbix to work, open the ports 10050, 10051, http, and https.
firewall-cmd --add-service={http,https} --permanent
firewall-cmd --add-port={10051/tcp,10050/tcp} --permanent
firewall-cmd --reload
