How to remove devices older than 24 hours?

[definity]

So I have got a ping scan going which is finding the machines fine but since my network is DHCP based that means a lot of hosts often are not of the same IP as the days before.

How can I make it so old hosts are deleted?

Thanks.

[Oz_Joris]

Hello Definity,

It's tricky to monitor machines that change IP regularly, I guess you use autoregistration. I wonder if using active Zabbix agents could solve the problem so that Zabbix can modify the interface by itself.

Hoping to help you, Oz_Joris

[splitek]

Hello Definity,

It's tricky to monitor machines that change IP regularly, I guess you use autoregistration. I wonder if using active Zabbix agents could solve the problem so that Zabbix can modify the interface by itself.

Hoping to help you, Oz_Joris

To monitor devices with dynamic IP check:
Zabbix Agent - Active Checks (official Zabbix channel) https://www.youtube.com/watch?v=-QTZVWnx6i4

The question is how to remove hosts older than 24 hours. I think it is only possible by API. But problem is how to know when host is 24 hours old?

[mdudka]

What I did to delete the old host in my situation, I had to create a python script that was ran on the Zabbix scripts; which passed the Host Target Macro. To activate the script I had a ICMP Ping Item with a Trigger(to trigger when the ICMP Ping Timesout); within the template's for my host.

Than I created a Trigger action that was directed to the Zabbix script, which ran the python script and using pyzabbix api with sys arguments as the Host Macros, I could perform API Actions such as deleting update and changing the host that was passed to the script automatically. I have a script for python which I had set up a little bit different, so I manipulated to suite this situation.

Trigger Condition:

max(/TEMPLATENAME/ICMPPINGITEMKEY,#3)=0

Replace TEMPLATENAME with the template name of the template
Replace ICMPPINGITEMKEY with the item key associate with a ICMP Ping Item to the Template

When you create you zabbix script, Make sure it has the Host Target Macro in the exact position as this example below:

python3 ./home/zabbix/PythonScripts/AutoDeleteHost.py {HOST.TARGET.HOST}

Save the code as AutoDeleteHost.py
and don't forget to change your Zabbix username and password in the python script.
https://pastebin.com/WYJH5JrU