Install Zabbix-agent on Centos

Add the repo

rpm -Uvh http://repo.zabbix.com/zabbix/3.4/rhel/7/x86_64/zabbix-release-3.4-2.el7.noarch.rpm

Install the agent

yum install zabbix-agent

Configure the agent

vi /etc/zabbix/zabbix_agentd.conf

Start the agent

service zabbix-agent start