git push 失败与解决方法汇总

1.http链接失败：

现象：

1. “Permission denied (publickey).  
2. fatal the remote hang up unexpectly

 原因：http链接失败

解决方法：

1）生成ssh密钥

2）然后将公钥拷贝到gitup配置之中。“Account Settings” > Click “SSH Public Keys” > Click “Add another public key” 

3）修改本地配置

1. edit .git/config file under your repo directory
2. find url=entry under section [remote "origin"]
3. change it from url=https://MichaelDrogalis@github.com/derekerdmann/lunch_call.git tourl=ssh://git@github.com/derekerdmann/lunch_call.git. that is, change all the texts before @ symbol to ssh://git
4. Save config file and quit. now you could use git push origin master to sync your repo on GitHub

参考：http://stackoverflow.com/questions/7438313/pushing-to-git-returning-error-code-403-fatal-http-request-failed/9575906#9575906