①xshell → 서버 user2 전자서명로그인 ② client user2 → 서버 user2 전자서명로그인 ◇ Svr_setting[192.168.111.10] root# vim /etc/ssh/sshd_config [enter] PasswordAuthentication yes [save] root# systemctl restart sshd ◇ Client_setting[192.168.111.11] root# useradd user2 root# passwd user2 {생략가능 keygen실행하면 자동으로됨. root# mkdir ~user2/.ssh root# touch ~user2/.ssh/authorized_keys root# chown -R user2:user2 ~user2/.ssh root# ..