碰到了git拉代码时报出的一个错误
通过查阅资料尝试了几种方法之后解决了，在这做个记录。
首先需要检查一下SSH是否能够连接成功，输入以下命令
ssh -T git@github.com
若还是报这个错ssh: connect to host github.com port 22: Connection timed out就可以使用以下解决办法
第一步：打开终端并打开存放ssh的目录
cd ~/.ssh
ls
查看是否存在这些文件 若不存在，则可能是ssh没配置对，首先需要配置ssh（自行百度）很简单
若存在则在继续在终端输入以下命令新建一个文件
vim config
接着输入下面内容
Host github.com
User 注册github的邮箱
Hostname ssh.github.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/id_rsa
Port 443
最后:wq退出编辑即可
接着再执行
ssh -T git@github.com
出现提示回车yes即可
验证就能顺利通过了
总结自：https://blog.csdn.net/vosang/article/details/50499300
本文转自 https://blog.csdn.net/nightwishh/article/details/99647545，如有侵权，请联系删除。
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