August IceKimo: 製作SSH專用連線

首先新增使用者，我叫他ralink

root@anita:~# adduser ralink

然後以他身份自己創造ssh-key

ralink@anita:~$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/ralink/.ssh/id_rsa):
Created directory '/home/ralink/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/ralink/.ssh/id_rsa.
Your public key has been saved in /home/ralink/.ssh/id_rsa.pub.
The key fingerprint is:
15:f6:dc:45:6e:05:81:cf:6a:09:26:1c:f1:1d:88:ea ralink@anita
The key's randomart image is:
+--[ RSA 2048]----+
|        .oo...o++|
|        oo.=.o o.|
|       o .o +o. o|
|      . o.o   o. |
|     . So . o   |
|      E     +    |
|           .     |
|                 |
|                 |
+-----------------+

接下來，把Key餵給ralink自己吃

ralink@anita:~$ cd .ssh/; ls
id_rsa id_rsa.pub
ralink@anita:~/.ssh$ cp id_rsa.pub authorized_keys

把私鑰用轉換為pietty喜歡的格式
首先去http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html抓公用程式puttygen.exe，然後執行。

這時候，菜鳥們會問，怎麼弄回來？超簡單的，用Ctrl + C / Ctrl + V不就回來了？

ralink@anita:~/.ssh$ cat id_rsa
-----BEGIN RSA PRIVATE KEY-----
MIIEogIBAAKCAQEAujgQF8LHmJdCGwaezglZNPA9QeX3r2stpCvBXoZGAWN8C2jl
bxULfjc8meaSSi51laxvaWMWS7fvy+ugw/tItd161kkGiAURWoVWAdulR+Gt8PKP
……

這樣不就貼回來了？