git clone报错：connect to github.com port 443 after 21088 ms: Couldn‘t connect to server clonecomconnectgitgithubportserver
ssh: connect to host github.com port 22: Connection timed out，git clone github文件时失败 clonecomconnectconnectiongitgithubhostoutportsshtime
虚拟机连接github报错Failed connect to github.com:443； Connection refused解决方式 comconnectconnectiongitgithubrefsed