Configuring users to SSH login

Question

I have a CentOS server and I am trying to configure a SSH connection using a SSH Public Key. What I did:

• Created a user and a group (just to avoid root group), I created a group called mySSHUsers and every user that I registered I assigned to that group
• Generated the SSH-PublicKey and pasted into the authorized keys (as some tutorials explains)
• chown username:username .ssh

I'm logged as root, I created a user called User00 under the group mysshUsers But then, in the client machine I cannot connect to the server, checking the SSH logs files I get:

Apr  9 16:35:14 qor sshd[2669]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=xx.xx.xx.xx  user=root
Apr  9 16:35:14 qor sshd[2669]: pam_succeed_if(sshd:auth): requirement "uid >= 1000" not met by user "root"

So, am worried why if I say that my user is User00 in the logs files appears as if root is trying to connect? As far as I know, SSH doesn´t like connections as Root, and that's why I get "uid >= 1000" not met by user "root" so, am starting to believe that I am not configuring the users in a good way

I already tried editing the PAM rules (it's not a good practice) but then I get another error connecting, it said something like: password incorrect which password? So, I came back and enabled again the PAM rule because I don't want that kind of unsafe things in the server

EDITED:

Exactly, I trying to configure cloud9 to access the server via SSH, they generated me a public key, so then, I copied and pasted that key into the authorized_keys file, I have a folder under /home for every user, the structure is like:

• |-Home
• |---User00
• |-----.ssh
• |--------authorized_keys (file containing authorized ssh keys)
• |--------User00.pub (file generated when I typed ssh-keygen)
• |---User01
• |---User0n

Answer 1

If you were attempting to access ssh as user "user00" and got those log entries then you seem to have created the user account with uid 0. Unix accounts are identified by an integer user id; the text is just an associated tag to make it easier for humans to understand. But it is possible to create multiple aliases (text entries) with different passwords for the same uid. You can verify this by checking the entries in /etc/passwd for root and user00.