ubuntu上安装ssh-server过程
1、安装openssh-serversudo apt-get install openssh-server2、开机自动启动ssh命令sudo systemctl enable ssh3、关闭ssh开机自动启动命令sudo systemctl disable ssh4、单次开启sshsudo systemctl start ssh5、单次关闭sshsudo systemctl stop ssh6、设置好后重启系统reboot7、查看ssh是否启动，看到Active: active (running
