First you need to install zabbix-agent on the monitored server
Start the zabbix-agent service
Modify this /etc/zabbix/zabbix_agentd.conf configuration file
Server = IP address of the server where zabbix-server is installed
If Zabbix server is running = no appears during installation
[root@local]# getsebool httpd_can_network_connect
httpd_can_network_connect --> off
[root@local]# setsebool httpd_can_network_connect on
[root@local]# getsebool httpd_can_network_connect
httpd_can_network_connect --> on
setsebool with -P will persist the change across reboots.