SSH 配置详解

# 产生公钥与私钥对

$ ssh-keygen

# 按三次回车键
# 将本机的公钥 id_rsa.pub 复制到远程机器的 ~/.ssh/authorized_keys 文件中

$ ssh-copy-id user@ip

$ sudo apt install openssh-client

$ sudo apt install openssh-server

$ ps -e |grep ssh

$ sudo /usr/sbin/sshd

# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication no
#PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no

⋊> ~ ssh ubuntu@123.206.62.18
Permission denied (publickey).

Host *
     ServerAliveInterval 60