github连接超时:Connection closed by remote host

git pull 或者git push的时候，提示： kex_exchange_identification: Connection closed by remote host Connection closed by 127.0.0.1 port 22 fatal: Could not read from remote repository. Please make sure you have the correct access rights   使用命令：ssh -T git@github.com 检测 如果测试成功，请关闭代理试试，如果测试失败，请向下配置： 将ssh的22端口改为使用443 在等待git pull命令超时之后报出了类似: ssh: connect to host github.com port 22: Connection timed out的错误! 原因是: s...