ssh 접속
https://lts0606.tistory.com/m/222 (openssh 설치)
https://shanepark.tistory.com/195 (ssh-key gen 및 remote ssh)
VirtualBox로 리눅스 (Ubuntu18.04 설치)
ubuntu
ssh
apt-get update
apt-get install openssh-server
dpkg -l | grep ssh
window
$ ssh-keygen -t rsa
$ mkdir ~/.ssh
$ touch ~/.ssh/authorized_keys
$ chmod 755 ~/.ssh/authorized_keys
ubuntu
$ cd ~./ssh
$ vi authorized_keys
$ sudo service ssh start
window
$ ssh username@hostname