TCP Port Service state translation do not work as expected (CRT should be OK and OK should be CRT)

Troubleshooting
1

Hi,

i would like to check a tcp port (80) and when it is down, it should be displayed as “GOOD/OK” in CheckMK.

When port 80 comes up, it should switch to CRITICAL.

That is what i tried so far without success.

CheckMK > Setup > HTTP, TCP, Email, … > Check TCP port connection > Add rule

Description: custom_25

TCP Port: 25

Host labels: custom_80:sensor

CheckMK > Setup > Hosts > Properties of host x.xxx.xx.xxx-neptunium

Labels: custom_80:sensor

CheckMK > Monitor > All hosts > x.xxx.xx.xxx-neptunium > TCP Port 80 > Parameters for this service > Service state translation > Add rule for current host and service

Description: service_state_translation_custom_80

Remap states

OK = CRIT

WARNING = WARN

CRITICAL = OK

UNKNOWN = UNKNOWN

Apply settings.

Sadly the status is not changing for sensor TCP Port 80 from red to green. :frowning:

Message: CRITICAL - Socket timeout after 10 seconds

If i check Effective parameters of x.xxx.xx.xxx-neptunium / TCP Port 80 i can see the Service state translation rule. So this should be fine… i think :confused:

Maybe one of you will find my mistake?

Version: Checkmk Cloud Edition 2.3.0p22
OS: Ubuntu 24.04

Thank you + BR

schtebo

2

Unfortunately I don’t know why it’s not working, but for things like this, the negate nagios plugin can help:

image
image817×550 40.4 KB

This also had the advantage that it works in the raw edition as well.

1 Like
3

seems like this is related to an upgrade from raw to cloud.
with only cloud all seems to be okay.
sadly backup and restore do not resolve this issue.

… think this will be a manual task for me to rebuild everything on a cloud nativ platform :frowning:

4

You upgraded your instance from RAW to Cloud?
Was the monitoring core also switched from Nagios to CMC?
The state translation is only working with CMC core.

2 Likes
5

Unfortunately I missed that in the documentation.

thank you so much. It solved my problem. Thank you very much.

1 Like