1:设置root密码 [centos@ip-172-26-7-205 ~]$ sudo passwd root 2:切换到root模式 [centos@ip-172-26-7-205 ~]$ su root 3:设置登录方式为 root+密码 [centos@ip-172-26-7-205 ~]$ sed -ri 's/^#?(PasswordAuthentication)\s+(yes|no)/\1 yes/' /etc/ssh/sshd_config [centos@ip-172-26-7-205 ~]$ sed -ri 's/^#?(PermitRootLogin)\s+(yes|no)/\1 yes/' /etc/ssh/sshd_config [centos@ip-172-26-7-205 ~]$ sed -ri 's/^/#/;s/sleep 10"\s+/&\n/' /root/.ssh/authorized_keys 4:重启sshd服务 [centos@ip-172-26-7-205 ~]$ service sshd restart
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