PermitRootLogin yes

ssh root@10.122.1.100
root@10.122.1.100's password:
Permission denied, please try again.
root@10.122.1.100's password:
Permission denied, please try again.
root@10.122.1.100's password:
Permission denied (publickey,password).

Jan 20 18:24:31 osboxes sshd[2735]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=<HOST>  user=root
Jan 20 18:24:34 osboxes sshd[2735]: Failed password for root from 10.122.0.55 port 51989 ssh2
Jan 20 18:34:49 osboxes sshd[2749]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=<HOST>  user=root
Jan 20 18:34:51 osboxes sshd[2749]: Failed password for root from 10.122.0.55 port 52256 ssh2
Jan 20 18:35:02 osboxes sshd[2749]: message repeated 2 times: [ Failed password for root from 10.122.0.55 port 52256 ssh2]
Jan 20 18:35:02 osboxes sshd[2749]: Connection closed by 10.122.0.55 [preauth]
Jan 20 18:35:02 osboxes sshd[2749]: PAM 2 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=<HOST>  user=root