Monitoring of Proxmox without DNS or hostfile?

Troubleshooting
,
1

CMK version: 2.4.0p24
OS version: Docker image on Ubuntu 24.04.2 LTS

Error message:

Agent exited with code 1: Could not connect to Proxmox:8006 (HTTPSConnectionPool(host=‘proxmox’, port=8006): Max retries exceeded with url: /api2/json/access/ticket (Caused by NameResolutionError(“HTTPSConnection(host=‘proxmox’, port=8006): Failed to resolve ‘proxmox’ ([Errno -2] Name or service not known)”)))

I noticed suggestion to add the hostname to the DNS. But I don’t have a DNS server. And I am not that thrilled to add something to a hostfile in a docker image. So can I just use IP information as I have set the IP addres in the host within CheckMK allready.

2

Duh … Totally missed the option under the Proxmox rule.

Then I missed the SSL certificate issue ….

Now it works halfway.

The Check_MK service reports:

[special_proxmox_ve] Success, [piggyback] Success (but no data found for this host), execution time 0.5 sec

But the Check_MK Discovery service reports:

Services: all up to date, Host labels: all up to date, [agent] Communication failed: [Errno 111] Connection refusedCRIT, execution time 0.0 sec

So I propably missed something. But it escapes me at the moment what I missed.

3

Just reschedule the discovery service. It likely still has old information.

4

Apparantly that was the kick in the groin it needed. It now seems to be happy. (Or to scared to complain anymore.:winking_face_with_tongue: )