Easy SSH Server Setup on Ubuntu 24.04

SSH-copy-id 是用于将本地公钥复制到远程主机 authorized_keys 文件的工具，支持自定义端口、密钥文件及测试模式，简化 SSH 免密登录配置。

執行 ssh-copy-id 參數為要登入的主機，就可以將 public key 傳送到該主機，並幫忙設定好免密碼登入的信任主機。 [root@kvm3 ~]# ssh-copy-id 192.168.122.7

In this tutorial, we learned how to use the ssh-copy-id command to install SSH keys on a remote machine. Keep in mind that misconfigured keys can potentially lock you out of a system - situation where you have disabled ssh root login.

Linux ssh-copy-id命令中文手册, 把本地的ssh公钥文件安装到远程主机对应的账户下

Here, we'll explore how ssh-copy-id works, why you should use it, and how to install it across different Linux distributions using various package managers such as apt, dnf, and zypper.

ssh-copy-id:把本地的ssh公钥文件安装到远程主机对应的账户下 - 最专业的Linux命令大全，内容包含Linux命令手册、详解、学习，值得收藏的Linux命令速查手册。

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