That’s it then… the check_mk server and the sftp server are in the same lan, the server doing the backups is on the internet.
I forgot that the active checks run from the Check_mk server 
Thanks for pointing that out
Ok so i can fix this now but it would be a better check if it would run from the actual server that needs it.
Do you know how to do it like that?
I don’t have the skills to write my own checks
Sander
30-01-2019 00:10 (Europe/Amsterdam) - Brian Binder schreef:
That’s what had me confused so far. Sander, can you ensure it’s available from
the monitoring server?
···
On Jan 29, 2019, at 4:04 PM, Marcel Schulte schulte.marcel@gmail.com wrote:
Hi Sander,
the check is done as active check directly from CMK site, not from
server1. Maybe the CMK server is not allowed to connect the port by
network or local firewalls…
BR,
Marcel
Am Di., 29. Jan. 2019 um 21:38 Uhr schrieb Avalon IT | Sander Brouwer > support@avalon-it.nl:
Hi all,
Can’t get the sftp check to work. I put in the server name, port (8022)
and credentials. Check keeps saying that it can’t connect. I put it in
the checks of server 1, who makes this connection daily to store backup.
(sftp is on server2)
Checked everything ten times and I can connect from command line from
server1 to server2 no problem.
Check_MK version as well as the agent are latest, 1.5.0p11
Anyone else encoutered this? any tips would be greatly appreciated.
Sander
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