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[ssh-copy-id]复制公钥到远程服务器

创建密钥后，需要添加公钥内容追加到远程服务器的authorized_keys文件

添加到远程服务器有两种方式：

  1. 使用命令ssh-copy-id
  2. 手动复制公钥到远程

ssh-copy-id

命令ssh-copy-id使用本地公钥认证远程服务器

$ ssh-copy-id -i ~/.ssh/id_rsa.pub lab305@192.168.0.144 
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/home/zj/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
Received disconnect from 192.168.0.144 port 22:2: Too many authentication failures
Connection to 192.168.0.144 closed by remote host.

参数-i输入本地公钥文件

手动复制

使用命令>>追加到文件末尾

$ cat id_rsa.pub >> authorized_keys