

ssh: connect to host github.com port 22: Connection timed out

今天突然无法访问github，出现下面问题：

$ ssh -vT git@github.com
。。。
ssh: connect to host github.com port 22: Connection timed out

参考ssh: connect to host github.com port 22: Connection timed out和Using SSH over the HTTPS port

新建文件~/.ssh/config，添加如下内容：

$ cat config 
Host github.com
    Hostname ssh.github.com
    Port 443

重新测试成功

$ ssh -T git@github.com
Hi zjZSTU! You've successfully authenticated, but GitHub does not provide shell access.