Passive Zabbix items are fine if you can connect to all of the monitored hosts from the Zabbix server, but what if you can't allow incoming connections to the monitored hosts because of security or network topology reasons?
This is where active items come into play. As opposed to passive items, for active items, it's the agent that connects to the server; the server never connects to the agent. When connecting, the agent downloads a list of items to check and then reports the new data to the server periodically. Let's create an active item, but this time, we'll try to use some help when selecting the item key:
- Go to Configuration | Hosts
- Click on Items next to Another host
- Click on Create item
For now, use these values:
