DNAC unable to setup backup - Not able to connect to remote server

[thewifidude]

I am trying to set up an SSH backup on Cisco DNAC Version 2.3.5.6 but it can't reach the server. I have confirmed with my firewall team that nothing is blocking. They also confirm they see no SSH traffic coming from any of the 3 hosts in the cluster. I have rebooted all 3 nodes. The first node, I cannot get in with the maglev password so I had to hard cycle that one. But I am still not able to set up the ssh host. 

I am not even able to SSH to the host from any of the two nodes I can get into via CLI.

[balaji.bandi]

what kind of backup server using SCP ?

i follow below guide and works as expected :

https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/2-3-5/admin_guide/b_cisco_dna_center_admin_guide_2_3_5/b_cisco_dna_center_admin_guide_2_3_5_chapter_0110.html

make sure the path correct and have rights for the user to create a directly and files.

[thewifidude]

NFS and SSH. But like I said, I cannot even SSH to the backup server from the DNAC appliance themselves. However I can elsewhere. And my firewall team is not seeing any traffic come out on port 22 to the destination. When I SSH from the appliance, it just hangs, never connects.