1.安装ssh服务sudo apt-get update #更新软件源sudo apt-get install ssh #安装2.修改sshd_config文件，命令为：vi /etc/ssh/sshd_config将#PasswordAuthentication no的注释去掉，并且将no修改为yes将#PermitRootLogin prohibit-password的注释去掉，将prohibit-password改为yesPasswordAuthentication yesPermitRootLogin yes或echo -e “PasswordAuthentication yes\nPermitRootLogin yes” >> /etc/ssh/sshd_config3.启动SSH服务，命令为：/etc/init.d/ssh start // 或者service ssh start4.验证SSH服务状态，命令为：/etc/init.d/ssh status