no supported authentication methods available (server sent publickey) about ansible-cis-ubuntu-2204

[MVladislav]

Hi @sangraikang

Is your problem still persisting?
Upon a quick inspection, it seems that you are not using a public key when attempting to SSH into the server. By default, SSH is configured for public key authentication, and the logs indicate unsuccessful attempts with the default public keys.
To resolve this, make sure to provide your public key during the SSH login process.

[sangraikang]

Yes I am still having same issue. The public key is used in the remote server under authorized_keys and it was primary login method before the cis hardening and after it is giving the ssh error.

[MVladislav]

Hmm, that is strange, never get SSH login problem for a fresh Ubuntu 22.04 installation.
When I mention SSH usage, I'm referring to whether you provide your key with the ssh command using -i ~/.ssh/... when attempting to login to the server.
With the limited information from the logs you provided, it's challenging to pinpoint the location of the problem.

It shouldn't be an issue with cis_ubuntu2204_rule_5_4_2 as it is disabled by default and when i remember correct 5.4.2 is for different login changes not for SSH one.

Are there any additional details in the logs when you attempt to log in via SSH?
Can you access the Ubuntu server in any other way and check the logs on the server side?