#对应不同Ubantu版本下载版本如下
Ubuntu 16.04
wget https://repo.zabbix.com/zabbix/3.4/ubuntu/pool/main/z/zabbix-release/zabbix-release_3.4-1+xenial_all.deb
dpkg -i zabbix-release_3.4-1+xenial_all.deb

Ubuntu18.04
wget https://repo.zabbix.com/zabbix/5.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_5.0-1+xenial_all.deb
dpkg -i zabbix-release_5.0-1+xenial_all.deb

##安装

apt update
apt install zabbix-agent

修改机器配置(标颜色的三个地方,服务端不同,机器不同需要修改)Server,ServerActive配置对应服务端的ip或者域名,hostname对应服务web上的主机名
echo "" > /etc/zabbix/zabbix_agentd.conf
echo "PidFile=/var/run/zabbix/zabbix_agentd.pid" >> /etc/zabbix/zabbix_agentd.conf
echo "LogFile=/var/log/zabbix/zabbix_agentd.log" >> /etc/zabbix/zabbix_agentd.conf
echo "LogFileSize=0" >> /etc/zabbix/zabbix_agentd.conf
echo "Server=xxx" >> /etc/zabbix/zabbix_agentd.conf
echo "ServerActive=xxx" >> /etc/zabbix/zabbix_agentd.conf
echo "Hostname=xxx" >> /etc/zabbix/zabbix_agentd.conf
echo "Timeout=30" >> /etc/zabbix/zabbix_agentd.conf
echo "Include=/etc/zabbix/zabbix_agentd.d/*.conf" >> /etc/zabbix/zabbix_agentd.conf
echo "UnsafeUserParameters=1" >> /etc/zabbix/zabbix_agentd.conf

重启生效
service zabbix-agent restart
sudo update-rc.d zabbix-agent enable