[solved] Alert expiring certificates detected under Load Balancer/Certificates

Help
1

Hello,

for my F5 BIG-IP (i2600,i4600,i4600, i4800) loadbalancers
LibreNMS presents a list of the installed certificates (both, server and client) on the device, including the days until expiry under “Load Balancer / Certificates”

Now I’d like to create an alert to notify myself about upcoming expiries.

In the alert-definitions I cannot find any property to check for, regarding these certificates…

Can somebody help please?
Where is this expiry date stored in the database and how can I check for it in an alert-rule?

Thank you for your help!
awaum

2

Check in the table component to see what data is stored in there that you can then write an alert rule on

1 Like
3

Thank you, @laf !

4

Share the rule so others can benefit as well :slight_smile:

5

yes, sir! :smiley:

But I’m still investigating on that:
component.status changes away from “0” when the certificate has expired and also when the expiry date is near. (I found a cert on my systems that will expire in 4 days).

Yet I don’t understand the details and how I could set my own thresholds, but
a basic rule would be

component.type = “f5-cert”
component.status not equal “0”

I will update when I know better details.

6

Looks like you’ve got the rule you need, use both of those in the alert rule builder and it should work

7

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