3. 설치할 우분투가 16.04 이전 버전이라면 이 단계부터 시작합니다. ssh-keygen 명령어를 이용해 다음 방법으로 개인 키와 공개 키를 생성합니다.
@compute:~# ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Enter Enter passphrase (empty for no passphrase): Enter Enter same passphrase again: Enter Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: SHA256:oYXRptAGaAJQo89CWX95BZAnOB0NIfij9jr/6ghyceo root@compute The key's randomart image is: +---[RSA 2048]----+ |=.ooo++*B... | |..=ooo+*+o. | |.= .+o==. | |.o ooo.. | |. + o o S | | . * | |..+ . | |.o.... | | Eo=+o. | +----[SHA256]-----+