backup issues - it was not possible to make the ssh connection

Hey all, i had a backup running fine from my web server to a test backup server running ubuntu 22.04

i have made a new production backup server but can't for the life of me get the SSH connection test to work - at the moment am just testing it with connection type : password, once am happy with it i will use a access key

WELL! as of writing this i thought i would create a new user on the production backup server called svr01uk with a basic password and it worked - spent 2 days trying to figure out why it would not connect to ssh, not sure if its me or a bug but thought i would carry on writing this post.

the first ever backup i created on my  test  backup server with the username was cwpbackup worked fine so it cant be the username BUT the user was just a user not a sudo user am not sure if that's an issue.

On the new backup server i used the same username cwpbackup and i used the password &UJ3fDz2XHTEm% ( a generated password) i want to give you as much details as possible so thought i would show the password i used. I tested the connection using ssh terminal from my web server to my new backup server and it connected fine so the connection is fine that way.

It failed when doing a connection test on the backup manager_2 screen, i disabled firewalls white listed IP's  but nothing worked. now after starting to write this post i just thought i would create a new user on my backup server that i want to use in production did that and it worked fine.

My question is why wouldnt a sudo user called cwpbackup with the above password not connect but a new user would. I wanted to see if its me doing something wrong. 

I was thinking could it be the following why it didnt work

• You cant use a user that is in the sudo group
• Does it not like having % or & in the password field
• Does it not like using the same username on more than one scheduled backup
• or am i just being stupid and its something else. 

I really hope the above makes sense, writing this as quick as i can before i need to head out.

Thanks so much for reading.

The user you created is set to have shell access in the CWP account panel? Or did you create the user outside of CWP, using standard tools such as adduser? And you aren't making use of AllowUsers or AllowGroups in / etc / ssh / sshd_config?

Test interactively first with a shell session (don't be afraid of calling multiple -v flags in your connection attempt to get some very verbose info about what stage things fail: ssh -v -v -v user@server.com. Then try the same credentials with sftp.