ssh

• ssh 代理设置 <https://www.chenyudong.com/archives/ssh-using-private-public-key-no-password.html>
• ssh github代理设置 <https://imciel.com/2016/06/28/git-proxy/>
• .ssh/config 权限设置 <https://blog.csdn.net/zcc_heu/article/details/79017606>
• internal-sftp 和 sftp-server之间的区别和联系 <https://www.jianshu.com/p/f24d8ca565d7>