Failed to start ssh.service: Unit not found.

报错内容:

[Centos7@localhost ~]$ service ssh start
Redirecting to /bin/systemctl start ssh.service
Failed to start ssh.service: Unit not found.

xshell远程连接Vmware时,连接不上,查看Centos 7 终端,显示Unit not found.

解决办法:

OpenSSH Server的默认设置是拒绝root用户基于密码的登录，并且仅允许基于密钥的登录。需更更改这部分设定,sshd默认设置在/etc/ssh/sshd_config中,对以下部分进行修改：

PermitRootLogin yes

然后重启服务:restart the SSH server

sudo service ssh restart

注意:上面是Centos6的重启命令,Centos7的是:

systemctl restart sshd