`[root@k8s containerd]# echo “ssh-rsa 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 root@k8s.master.vmware” >> /root/.ssh/authorized_keys
[root@k8s containerd]# ssh 172.16.11.81
The authenticity of host ‘172.16.11.81 (172.16.11.81)’ can’t be established.
ECDSA key fingerprint is SHA256:gCmKCnqGRVTU3+vzorkIZHswRu7QyBG1oO11Zf8lEDE.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added ‘172.16.11.81’ (ECDSA) to the list of known hosts.
Activate the web console with: systemctl enable --now cockpit.socket

Last login: Fri Aug 6 09:27:15 2021
[root@k8s ~]# ssh 172.16.11.81
The authenticity of host ‘172.16.11.81 (172.16.11.81)’ can’t be established.
ECDSA key fingerprint is SHA256:gCmKCnqGRVTU3+vzorkIZHswRu7QyBG1oO11Zf8lEDE.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added ‘172.16.11.81’ (ECDSA) to the list of known hosts.
root@172.16.11.81’s password:
Permission denied, please try again.
root@172.16.11.81’s password:
Connection closed by 172.16.11.81 port 22
[root@k8s ~]# systemctl enable --now cockpit.socket
Created symlink /etc/systemd/system/sockets.target.wants/cockpit.socket → /usr/lib/systemd/system/cockpit.socket.
[root@k8s ~]# ssh 172.16.11.81
root@172.16.11.81’s password:
Permission denied, please try again.
root@172.16.11.81’s password:
Permission denied, please try again.
root@172.16.11.81’s password:
`
查看日志结果

[root@k8s ~]# tail /var/log/secure -n 20
Aug  6 16:01:15 k8s systemd[5642]: pam_unix(systemd-user:session): session opened for user ganqiyin by (uid=0)
Aug  6 16:01:15 k8s sshd[5638]: pam_unix(sshd:session): session opened for user ganqiyin by (uid=0)
Aug  6 16:01:15 k8s sshd[5655]: Accepted password for ganqiyin from 172.16.11.1 port 51955 ssh2
Aug  6 16:01:15 k8s sshd[5655]: pam_unix(sshd:session): session opened for user ganqiyin by (uid=0)
Aug  6 16:07:08 k8s sshd[5823]: Accepted publickey for root from 172.16.11.81 port 35938 ssh2: RSA SHA256:/nfjoLtpVL1TQk3ZieQNLkkD0OGIYH++yJ2/R+++KKs
Aug  6 16:07:09 k8s systemd[5827]: pam_unix(systemd-user:session): session opened for user root by (uid=0)
Aug  6 16:07:09 k8s sshd[5823]: pam_unix(sshd:session): session opened for user root by (uid=0)
Aug  6 16:07:35 k8s sshd[5920]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=172.16.11.82  user=root
Aug  6 16:07:37 k8s sshd[5920]: Failed password for root from 172.16.11.82 port 54272 ssh2
Aug  6 16:07:47 k8s sshd[5920]: Failed password for root from 172.16.11.82 port 54272 ssh2
Aug  6 16:08:03 k8s sshd[5920]: Failed password for root from 172.16.11.82 port 54272 ssh2
Aug  6 16:08:05 k8s sshd[5920]: Connection closed by authenticating user root 172.16.11.82 port 54272 [preauth]
Aug  6 16:08:05 k8s sshd[5920]: PAM 2 more authentication failures; logname= uid=0 euid=0 tty=ssh ruser= rhost=172.16.11.82  user=root
Aug  6 16:09:53 k8s sshd[5953]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=172.16.11.82  user=root
Aug  6 16:09:55 k8s sshd[5953]: Failed password for root from 172.16.11.82 port 54274 ssh2
Aug  6 16:10:01 k8s sshd[5953]: Accepted password for root from 172.16.11.82 port 54274 ssh2
Aug  6 16:10:01 k8s sshd[5953]: pam_unix(sshd:session): session opened for user root by (uid=0)
Aug  6 16:10:30 k8s sshd[5987]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=172.16.11.82  user=root
Aug  6 16:10:32 k8s sshd[5987]: Failed password for root from 172.16.11.82 port 54276 ssh2
Aug  6 16:10:35 k8s sshd[5987]: Connection closed by authenticating user root 172.16.11.82 port 54276 [preauth]