Negative TCP check (alert if port is open) | General

Negative TCP check (alert if port is open)

under review

Adrien

The idea is to add an option to create an alert if a port is opened (and not closed as usual).
The goal is to detect firewall misconfiguration.
For example, monitor the port SSH 22.
If the port is accessible, trigger an alert.

January 8, 2024

Adrien Rey-Jarthon

Merged in a post:

Negative monitoring

It-admin

I would like to have checks which fail when something is there which shouldn't be there. For example a http endpoint which should only be available through https.

August 17, 2024

Adrien Rey-Jarthon

Thanks for this suggestion, this is something I was thinking about too and which has been requested a couple time. It's currently low priority but likely to be added later.

📆

This response was made on 2024-01-09 (the comment date is wrong)