SSH 不能连接 Github 的一次搞笑经历

2017-10-02

Background Information:

Environment ：Mac Sierra10.12.6,OpenSSH,Global Proxy with IPv6
ERROR like this photo below:
ERROR
ssh_exchange_identification: Connection closed by remote host

How to find the main problem:

Search the error info on Google

I searched for a long time and try it by myself,all of not work I realized that the problem was not that simple. So I go to next way.

Analyse Error message

I found the Message give me key_load_public: no such file or directory,this message cause me to focus on this direction .As you know it still don’t work well,when you check the connection with command ssh -T git@github.com -vvv you can get the same message of the key_load even if you can connect properly.

I saw a message when I very upset,It is Connecting to github.com port 21473,Holy S**t as you know the ssh default port is 22 ,I am stupid to use 21473 connect the github, I recall that I have changed the local ssh port. so I type ssh -T -p 22 git@github.com it worked well.

Solve problem

There have to ways to solve this,the first way is change the ssh port to default value 22,the second way use Using SSH over the HTTPS port

Finally

Enjoy your coding time and focus on the error message.

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