参考文章：Windows下Git多账号配置，同一电脑多个ssh-key的管理
按流程执行后，碰到的问题
Permission denied, please try again.
需要执行ssh-add ，执行后出现如下问题：
Could not open a connection to your authentication agent.
排查后，先执行ssh-agent bash，再执行ssh-add

[root@localhost wakavS]# ssh-add ~/.ssh/id_rsa_Leen
Could not open a connection to your authentication agent.
[root@localhost wakavS]# ssh-agent bash
[root@localhost wakavS]#  ssh-add ~/.ssh/id_rsa_Leen
Enter passphrase for /root/.ssh/id_rsa_Leen: 
Identity added: /root/.ssh/id_rsa_lidong (/root/.ssh/id_rsa_Leen)

操作成功。

原文链接：https://blog.csdn.net/leedaning/java/article/details/49888335