ubuntu 18.04 설치 cpu :4 mem : 4G disk : thin 100G sudo su - apt-get update apt-get -y install net-tools apt-get -y install openssh-server /etc/init.d/ssh start apt-get install vim ping test exit hostnamectl set-hostname docker-host02 vi /etc/hosts x.x.x.101 docker-host01 x.x.x.102 docker-host02 x.x.x.103 docker-host03 패키지 설치 sudo apt-get install -y apt-transport-https ca-certificates curl softwar..