ssh-copy-id 也会给远程主机的用户主目录（home）和~/.ssh, 和~/.ssh/authorized_keys设置合适的权限 。
步骤1: 用 ssh-key-gen 在本地主机上创建公钥和密钥
[email protected]$ ssh-keygen -t rsa Enter file in which to save the key (/home/jsmith/.ssh/id_rsa):[Enter key] Enter passphrase (empty for no passphrase): [Press enter key] Enter same passphrase again: [Pess enter key] Your identification has been saved in /home/jsmith/.ssh/id_rsa. Your public key has been saved in /home/jsmith/.ssh/id_rsa.pub. The key fingerprint is: 33:b3:fe:af:95:95:18:11:31:d5:de:96:2f:f2:35:f9 [email protected]
步骤2: 用 ssh-copy-id 把公钥复制到远程主机上
[email protected]$ ssh-copy-id -i ~/.ssh/id_rsa.pub [email protected] [email protected]host‘s password: Now try logging into the machine, with ―ssh ?remote-host‘‖, and check in: .ssh/authorized_keys to make sure we haven‘t added extra keys that you weren‘t expecting.
[注: ssh-copy-id 把密钥追加到远程主机的 .ssh/authorized_key 上.]
[email protected]$ ssh remote-host Last login: Sun Nov 16 17:22:33 2008 from 192.168.1.2 [email protected]$