系统版本
[centospub@davidserver ~]$ cat /etc/issue;uname -a CentOS release 6.3 (Final) Kernel \r on an \m Linux davidserver 2.6.32-279.el6.x86_64 #1 SMP Fri Jun 22 12:19:21 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
用户
centospub:x:502:502::/home/centospub:/bin/bash
密码
centospub
管理机
10.0.0.9
被管理机
10.0.0.10
2,管理机生成公钥和密钥
[centospub@davidserver ~]$ ssh-keygen -t dsa Generating public/private dsa key pair. Enter file in which to save the key (/home/centospub/.ssh/id_dsa): Created directory '/home/centospub/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/centospub/.ssh/id_dsa. Your public key has been saved in /home/centospub/.ssh/id_dsa.pub. The key fingerprint is: 19:e8:fd:c8:01:32:da:a3:18:de:7e:83:c4:2d:f2:7f centospub@davidserver
文件修改
[centospub@davidserver ~]$ cd .ssh/ [centospub@davidserver .ssh]$ ls id_rsa.pub id_rsa [centospub@davidserver .ssh]$ mv id_rsa.pub authorized_keys [centospub@davidserver .ssh]$ chmod 400 authorized_keys
3,将公钥传到被管理机
[centospub@davidserver .ssh]$ scp authorized_keys [email protected]:/home/centospub/.ssh The authenticity of host '10.0.0.10 (10.0.0.10)' can't be established. RSA key fingerprint is 6e:49:32:73:8d:40:4e:f2:ee:dc:48:fb:3e:37:a3:b8. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '10.0.0.10' (RSA) to the list of known hosts. [email protected]'s password: id_dsa.pub 100% 602 0.16KB/s 00:00
4,管理机通过公钥连被管理机
[centospub@davidserver ]$ ssh [email protected]
指定私钥
[centospub@davidserver ]$ ssh [email protected] -i .ssh/id_dsa.it.20120915