Github：fatal: Could not read from remote repository.

Github 仓库，执行 git pull 和 git push 时，报错如下：

kex_exchange_identification: Connection closed by remote host
Connection closed by 20.205.xx.xx port 22
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

解决：编辑 ~/.ssh/config （如果没有改文件，就新建一个）并输入以下内容：

Host github.com
Hostname ssh.github.com
Port 443

新建文件

touch ~/.ssh/config

参考链接