ubuntu 16 打开SSH服务
1.查看是否启动进程
roott@jiqing-virtual-machine:~# ps -ef | grep sshd
root 3477 1 0 18:36 ? 00:00:00 /usr/sbin/sshd -D
root 3478 3477 0 18:36 ? 00:00:00 sshd: root@pts/1
root 3552 2265 0 18:37 pts/3 00:00:00 grep --color=auto sshd
2.如果没有，安装ssh-server
apt-get install openssh-server
3.启动ssh
/etc/init.d/ssh start
4.开启root登录
sudo vi /etc/ssh/sshd_config
PermitRootLogin yes
5.自动接受新的公钥
sudo vi /etc/ssh/ssh_config
StrictHostKeyChecking no
7.重新启动
/etc/init.d/ssh restart
或
sudo service ssh restart