1、首先安装openssh-server

apt update && apt install openssh-server

2、修改sshd_config 配置，允许远程

vi /etc/ssh/sshd_config

PasswordAuthentication yes
ChallengeResponseAuthentication yes
UsePAM yes

3、重启ssh服务

/etc/init.d/ssh restar

4、打开xshell或者堡塔远程终端，连接