– Tested with Ubuntu 16.04 (Xenial) LTS / Debian 9 and Zabbix Agent 4.0 beta 1 on September 2018 –
First of all, add Zabbix 4 repository (4 is in beta, hence is version still numbered as 3.5). For Ubuntu 16.04 use
echo "deb http://repo.zabbix.com/zabbix/3.5/ubuntu xenial main" | sudo tee /etc/apt/sources.list.d/zabbix4.list > /dev/null
(build are availble for bionic, trusty, and xenial - set the repo accordingly)
For Debian 9 use
echo "deb http://repo.zabbix.com/zabbix/3.5/debian stretch main" | sudo tee /etc/apt/sources.list.d/zabbix4.list > /dev/null
(but jessie and wheezy builds are available, too).
Add the missing public key for repository with
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 082AB56BA14FE591
and update the apt package list with
sudo apt-get update
Install the Zabbix Agent
sudo apt-get install zabbix-agent
Edit your local configuration with
sudo vim /etc/zabbix/zabbix_agentd.conf.d/mysetup.conf
and set your custom parameters (at least the address of the zabbix server)
Server=1.2.3.4,zabbix.example.com
Finally restart the agent with
sudo systemctl restart zabbix-agent