ssh -T git@github.com Connection timed out 解决方案-自测有效
$ ssh -T git@github.com
$ ssh -vT git@github.com -p 443
OpenSSH_9.5p1, OpenSSL 3.1.4 24 Oct 2023
debug1: Reading configuration data /c/Users/Administrator/.ssh/config
debug1: /c/Users/Administrator/.ssh/config line 1: Applying options for github.com
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to github.com [20.205.243.166] port 443.
debug1: connect to address 20.205.243.166 port 443: Connection timed out
ssh: connect to host github.com port 443: Connection timed out文章来源：https://www.toymoban.com/news/detail-809064.html
解决方案：
git bash 中vim ~/.ssh/config
修改内容如下：重点第二行:ssh.github.com
Host github.com
HostName ssh.github.com # 这是最重要的部分
User git
Port 443
PreferredAuthentications publickey
IdentityFile ~/.ssh/id_rsa文章来源地址https://www.toymoban.com/news/detail-809064.html
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![git fatal:unable to connect to github.com: github.com[0: 20.205.243.166]: errno=Connection timed out](https://imgs.yssmx.com/Uploads/2024/02/510036-1.png)
