Scheduled Log Export doesn't accept new SSH host key

[AnneB]

Hi everyone,

today I reinstalled our syslog server which we use to archive the traffic logs of our PA-3020s (amongst some other things) and didn't import the old server's ssh host keys.

After updating the configuration for the Scheduled Log Export in the GUI I clicked the "Test SCP Server Connection" button and got the following message:

Even though it says...

... after confirmation, I keep getting the first message again and again when I try to test the SCP server connection.

Using the "delete user-file ssh-known-hosts user username all" command in the CLI also didn't solve the problem. On the other hand, doing a "scp export [...]" to the new syslog server via the CLI is working fine.

Has anyone of you been having the same issue and/or an idea what I could do to fix this?

Thanks in advance and best regards!

- Anne

PS: We are currently running PAN-OS 5.0.10

[AnneB]

Okay, I think I somehow solved the issue. This is what I did:

1. Updated PAN-OS 5.0.10 to PAN-OS 5.0.11. After this, the problem was still there, so I'm just including this step here for the sake of completeness.
2. In the dialog where you add the Scheduled Log Export job I replaced the hostname of our syslog server with its IP address.
3. I got a similar message like the one above, telling me that the host key changed and "SOMEONE MAY BE DOING SOMETHING NASTY" (sorry, don't have a screenshot) and asking if I wanted to accept the new key.
   
4. After confirmation, the test of the SCP server connection started working.
5. Then I replaced the IP adress with the hostname again and the export still worked!