完成公钥登记，任然git clone 不下来代码

user@user-virtual-machine:~/program/aliyun$ git clone git@git.******.git
Cloning into 'your project...

The authenticity of host '**********' can't be established.                                                        

RSA key fingerprint is cc:fb:43:c8:da:60:8b:c4:b7:f2:3d:4a:7e:77:bc:5f.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '*************' (RSA) to the list of known hosts.
Agent admitted failure to sign using the key.

youracount******** password: 

出现：The authenticity of host '**********' can't be established.              可通过下面两种方式来解决：

1. 使用ssh连接远程主机时加上“-o StrictHostKeyChecking=no”的选项，如下：

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1	ssh -o StrictHostKeyChecking=no 192.168.xxx.xxx

2. 一个彻底去掉这个提示的方法是，修改/etc/ssh/ssh_config文件（或$HOME/.ssh/config）中的配置，添加如下两行配置：

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1 2	StrictHostKeyChecking no UserKnownHostsFile /dev/null

修改好配置后，重新启动sshd服务即可，命令为：/etc/init.d/sshd restart （或 service sshd restart ）

出现Agent admitted failure to sign using the key. 可通过下面这条命令来解决：

解決方式 使用 ssh-add 指令将私钥 加进来 （根据个人的密匙命名不同更改 id_rsa）
# ssh-add   ~/.ssh/id_rsa