解决 connect to host github.com port 22 operation timed out

本来好好地.不知道为什么不能push了.估计是被墙,于是搜搜解决办法.改换端口

参考 https://mozillazg.com/2015/08/use-443-port-fix-github-connection-timeout.html

参开: https://help.github.com/articles/using-ssh-over-the-https-port/

修改 ~/.ssh/config 中 github.com 的配置， Hostname 改为 ssh.github.com, Port 改为 443:

如果没有config文件就手动创建一个

 Host github.com
   Hostname ssh.github.com
   Port 

测试

ssh -T git@github.com
The authenticity of host '[ssh.github.com]:443 ([xxx.xxx.xxx.xxx]:443)' can't be established.
RSA key fingerprint is SHA256:xxxxxxxx....
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[ssh.github.com]:443,[xxx.xxx.xxx.xxx]:443' (RSA) to the list of known hosts.
Hi unixc3t! You've successfully authenticated, but GitHub does not provide shell access.