Edit format & Add agent admitted failure

Author: qn

_posts/2014-08-06-git-ssh-key.markdown

@@ -1,47 +1,63 @@
----
-layout: post
-title:  "git ssh key"
-date:   2014-08-06 
-categories: [jekyll, git]
----
-一 设置git的user name和email：
-{% highlight ruby %}
-$ git config --global user.name "banyaner"
-$ git config --global user.email "1129103472@qq.com"
-{% endhighlight %}
- 
-二 生成密钥
- 
-ssh-keygen -t rsa -C “1129103472@qq.com”
- 
- 按3个回车，密码为空。(不要输密码)
- 
-然后到.ssh下面将id_rsa.pub里的内容复制出来粘贴到github个人中心的账户设置的ssh key里面
-三 测试
-{% highlight ruby %}
-$ ssh -T git@github.com
-{% endhighlight %}
-你将会看到：
-
-  {% highlight ruby %}
-  The authenticity of host 'github.com (207.97.227.239)' 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)?
-{% endhighlight %}
-选择 yes
-如果看到Hi后面是你的用户名，就说明成功了。
-四 修改.git文件夹下config中的url
-
-修改前
-{% highlight ruby %}
-    [remote "origin"]
-    url = https://github.com/banyaner/banyaner.github.io.git
-    fetch = +refs/heads/*:refs/remotes/origin/*
- {% endhighlight %}
-修改后
-{% highlight ruby %}
-    [remote "origin"]
-    url = git@github.com:banyaner/banyaner.github.io.git
-    fetch = +refs/heads/*:refs/remotes/origin/*
-{% endhighlight %}
-五 成功
+---
+layout: post
+title:  "git ssh key"
+date:   2014-08-06 
+categories: [jekyll, git]
+---
+### 一.设置git的user name和email：
+
+{% highlight ruby %}
+$ git config --global user.name "banyaner"
+$ git config --global user.email "1129103472@qq.com"
+{% endhighlight %}
+ 
+### 二.生成密钥
+ 
+ssh-keygen -t rsa -C “1129103472@qq.com”
+ 
+ 按3个回车，密码为空。(不要输密码)
+ 
+然后到.ssh下面将id_rsa.pub里的内容复制出来粘贴到github个人中心的账户设置的ssh key里面
+
+### 三.测试
+
+{% highlight ruby %}
+$ ssh -T git@github.com
+{% endhighlight %}
+你将会看到：
+
+  {% highlight ruby %}
+  The authenticity of host 'github.com (207.97.227.239)' 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)?
+{% endhighlight %}
+选择 yes, 如果看到Hi后面是你的用户名，就说明成功了。
+
+### 四:常见问题
+
+#### 添加ssh key后始终要求输入密码
+
+原因: 因为clone代码时使用https协议，而非git协议。
+
+解决：
+
+修改.git文件夹下config中的url
+
+修改前
+{% highlight ruby %}
+    [remote "origin"]
+    url = https://github.com/banyaner/banyaner.github.io.git
+    fetch = +refs/heads/*:refs/remotes/origin/*
+ {% endhighlight %}
+修改后
+{% highlight ruby %}
+    [remote "origin"]
+    url = git@github.com:banyaner/banyaner.github.io.git
+    fetch = +refs/heads/*:refs/remotes/origin/*
+{% endhighlight %}
+
+#### Agent admitted failure to sign using the key
+
+原因： ssh key 没有和authentication agent绑定
+
+解决： 在当前用户执行`ssh-add`