使用github，在git push時，需要輸入用戶名和密碼，這會很不方便，本文介紹使用ssh來實現無需輸入用戶名和密碼。
場景：我有一個repository：https://github.com/strongyoung/Notes，我要實現對這個repository的git push不用輸入用戶名和密碼。
生成key
找到自己的公共key，切換到家目錄，進入.ssh目錄下，看下有沒有公共key，如果有，跳過這一步，如果沒有，使用以下命令進行生成。
[yang@master ~]$ cd
[yang@master ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/yang/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/yang/.ssh/id_rsa.
Your public key has been saved in /home/yang/.ssh/id_rsa.pub.
The key fingerprint is:
38:fb:83:ff:2c:60:08:a2:0b:c8:e8:0b:b6:c0:c5:71 yang@master
The key's randomart image is:
+--[ RSA 2048]----+
| |
| |
| . E |
|. o o . |
|=. + .o S |
|*.. . oo |
|=+ ..o |
|=.. ..o. |
| o. .o+o |
+-----------------+
[yang@master ~]$ ls .ssh/
id_rsa id_rsa.pub 對於生成key有疑問，可以參考以下：
https://help.github.com/articles/generating-an-ssh-key/
部署key
登錄github，找到相應的repository，點擊“setting”，然後點左邊的“Deploy keys”，再點右邊的”add deploy key”，如下圖：
在Title輸入標題，在key的輸入框中輸入剛纔生成的公有key，即id_rsa.pub的內容。再在“allow write access”前面打上勾。如下：
部署key也可以參考以下：
https://help.github.com/articles/adding-a-new-ssh-key-to-your-github-account/
測試ssh 連接
使用以下命令進行測試
[yang@master Notes]$ ssh -T [email protected]
The authenticity of host 'github.com (192.30.253.113)' 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
Warning: Permanently added 'github.com,192.30.253.113' (RSA) to the list of known hosts.
Hi strongyoung/Notes! You've successfully authenticated, but GitHub does not provide shell access.
已成功連接，如有其他問題，可以參考以下：
https://help.github.com/articles/testing-your-ssh-connection/
配置remote url
使用以下命令進行配置remote url：
[yang@master Notes]$ git remote set-url origin git@github.com:strongyoung/Notes.git
這裏的[email protected]:strongyoung/Notes.git換成你自己的repository，注意，這個是ssh 地址，不是https地址：
在“clone download”處點擊“use SSH”，可以找到ssh的clone地址。
測試
[yang@master Notes]$ git push origin master
Counting objects: 8, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (5/5), 503 bytes | 0 bytes/s, done.
Total 5 (delta 0), reused 0 (delta 0)
To [email protected]:strongyoung/Notes.git
31da6f8..d7bb118 master -> master
恭喜，在push的時候，已無需輸入用戶名和密碼。
參考文獻：
[1] http://stackoverflow.com/questions/6565357/git-push-requires-username-and-password