OpenSSH 命令集 - Linux ssh 免码登录 (ssh-copy-id)

I discovered that the command ssh-copy-id could be used to simplify this process, but it seems like it does not have an option to specify the port of the ssh server.

The syntax is as follows to install ssh-keys: $ ssh-copy-id user@server-name-here $ ssh-copy-id -i /path/to/identity-file user@server-name-here The -i /path/to/identity-fileforces ssh-copy-id command to use only the key(s) contained in identity_file rathe

ssh-copy-id命令用于将本地公钥复制到远程主机的authorized_keys文件，确保SSH免密登录。 当远程主机SSH端口非默认（如2233）时，需指定端口进行配置。

描述： ssh-copy-id 是一个实用 ssh 去登陆到远程服务器的脚本。 它也能够改变远程用户名的权限，如 ~/.ssh 和 ~/.ssh/authorized_keys 删除其写的权限，所以一般 /.ssh给予700， /.ssh/authorized_keys 给予600权限。

这个过程,其实就是将 serverA 中的 /root/.ssh/id_rsa.pub 文件文件, 追加到 serverB 的 /root/.ssh/authorized_keys 文件中 ::: 使用 ssh-copy-id

Here learn about ssh-copy-id command in Linux with examples. A handy tool to install ssh key to enable passwordless login to Linux machines.

copy of the key being installed on the remote system. -n do a dry-run. Instead of installing keys on the remote.