NSX manager backup by manual has been failed as below;
I configured it correctly because I can access to sftp server via cli from NSX Manager.
What should I do next step for this issue?
root / VMware1!
Pass Phrase : VMware1!
#sftp firstname.lastname@example.org (root/VMware1!) has been successfully loged in.
I have run into this issue in my home lab. Is there anything in the auth logs from the backup destination?
In my home lab there was nothing in the logs and I was able to resolve the issue after a reboot of the NSX manager.
Please provide auth log information and I will help if I can.
Seems there is an issue with the ciphers. Since you did not mention the NSX version I would recommend just to check the following KB articles: