服務器間無密碼scp

例如兩臺服務器
192.168.0.1
192.168.0.2
把192.168.0.1下的文件無密碼複製到192.168.0.2下

• 生成配對祕鑰
  ssh-keygen -t rsa
  私鑰 ~/.ssh/id_rsa
  公鑰 ~/.ssh/id_rsa.pub
• 把公鑰id_rsa.pub放到192.168.0.2下
• 追加公鑰
  cat id_rsa.pub >> ~/.ssh/authorized_keys