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

使用git push向github推代码时报如下错误:

ssh: connect to host github.com port 22: Operation timed out
fatal: Could not read from remote repository.

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

这是防火墙组织了22端口。

修改.ssh下的config文件即可

Host github.com
    HostName ssh.github.com
    Port 443
    User git

HostName改为 ssh.github.com，Post改为443端口即可。