Can't remotely ssh into a fresh Proxmox installation: Permission denied, please try again

[eugrus]

With some on-site help I am trying to gain remote access to a clean Proxmox VE 7.3-1 installation done for me there (TCP/22 and UDP/1194 have been forwarded on-site to that server living behind a D-Link DSR-250).

Currently I am running into the Permission denied, please try again error every time I try to log via ssh into that fresh installation.

>ssh root@IP.ADD.RES.S

The authenticity of host 'IP.ADD.RES.S (IP.ADD.RES.S)' can't be established.

ECDSA key fingerprint is SHA256:...

Are you sure you want to continue connecting (yes/no/[fingerprint])? yes

Warning: Permanently added 'IP.ADD.RES.S' (ECDSA) to the list of known hosts.

ssh_dispatch_run_fatal: Connection to IP.ADD.RES.S port 22: Connection timed out



>ssh root@IP.ADD.RES.S

root@IP.ADD.RES.S's password:

Permission denied, please try again.

root@IP.ADD.RES.S's password:

Permission denied, please try again.

root@IP.ADD.RES.S's password:

root@IP.ADD.RES.S: Permission denied (publickey,password).



>ssh root@IP.ADD.RES.S

root@IP.ADD.RES.S's password:

Permission denied, please try again.

root@IP.ADD.RES.S's password:

My first thought was asking for usermod -U root at the remote site.

This didn't change things though.

Then I supposed, that maybe PermitRootLogin is set to no by default.

However by now I've looked up the /etc/ssh/sshd_config of the same Proxmox version on another machine and currently know that this is not the default behaviour.

Still, a sudoer user with a password has been created for me at the remote site:

useradd eugrus usermod -aG sudo eugrus passwd eugrus

But I am getting the very same error when trying to log-in remotely as the newly created user:

>ssh eugrus@IP.ADD.RES.S

eugrus@IP.ADD.RES.S's password:

Permission denied, please try again.

eugrus@IP.ADD.RES.S's password:

 

[eugrus]

Here are some logs sent from the remote site:


The attempts from 92.116.21.26 were indeed mine.

 

[eugrus]

The issue is closed: wrong password had been communicated to me.