使用 ssh key 驗證 github

使用ssh key驗證github的好處就是不用每次提交代碼的時候都要輸入用戶名和密碼，由於着在必定程度上對效率有很大的影響，雖然這麼作能夠防止代碼提交的次數過多，但這也看我的的習慣吧。

今天嘗試了一下配置ssh key

OS:mac os

打開控制檯，建一個目錄，好比~/.ssh(其實叫什麼都無所謂，網上搜的基本上都這麼配置)

在該目錄下輸入命令：

ssh-keygen -t rsa -C "youname@example.com"

注意：雙引號換成本身的郵箱，若是遇到權限問題，只需在前面加上sudo

Generating public/private rsa key pair.
Enter file in which to save the key (/var/root/.ssh/id_rsa): ./id_rsa＃這裏填的是保存文件的路徑
Enter passphrase (empty for no passphrase):＃直接enter跳過 
Enter same passphrase again: ＃同上
Your identification has been saved in ./id_rsa.
Your public key has been saved in ./id_rsa.pub.
The key fingerprint is:
25:68:54:4a:f1:03:ab:78:15:3f:f7:9d:f0:bf:08:ee bsn.huang@gmail.com
The key's randomart image is:
+--[ RSA 2048]----+
|      *o.        |
|     o O         |
|      * * o .    |
|   . +   * . + . |
|  . o   S   . +  |
|   .           . |
|           .    .|
|          . . . .|
|          .E . . |
+-----------------+

這個時候，在.ssh目錄下有兩個文件

id_rsa        id_rsa.pub

其中id_rsa是私鑰 id_rsa.pub是公鑰

而後，執行下面的命令，將生成的key添加

ssh-add id_rsa

而後將id_rsa.pub裏面的內容複製下來，在github上的settings裏面找到add keys，將其粘貼到key便可，title隨便填

這個時候能夠在控制檯上測試一下

$ ssh -T git@github.com
The authenticity of host 'github.com (192.30.252.128)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? yes
Failed to add the host to the list of known hosts (/Users/Bsn/.ssh/known_hosts).
Hi bsnwong! You've successfully authenticated, but GitHub does not provide shell access.

其餘不用管，只要看到最後一行，說明驗證成功了

 

後話：剛開始忘記執行ssh-add id_rsa 命令，一直驗證不成功，困在這裏很久