---恢复内容开始---
原文地址：https://juejin.im/post/5ac0cf356fb9a028df22c246
ssh-keygen -t rsa -C "your.email@example.com" -b 4096
生成第一个gitlab的ssh key一路回车即可，生成第二个github的ssh key需注意一下ssh key的名字需要修改一下，否则就会覆盖前面生成的gitlab的key，这里我修改成id_rsa_github
- id_rsa - id_rsa.pub - id_rsa_github - id_rsa_github.pub
cat ~/.ssh/id_rsa.pub
在.ssh/目录下新建一个config文件
vim config
添加配置，内容为
# gitlab Host gitlab User git HostName gitlab.cheanjiait.com PreferredAuthentications publickey IdentityFile ~/.ssh/id_rsa # github Host github User git HostName github.com PreferredAuthentications publickey IdentityFile ~/.ssh/id_rsa_github
$ ssh -T gitlab Welcome to GitLab, Ethan Chen!
$ ssh -T github Hi azumia! You‘ve successfully authenticated, but GitHub does not provide shell access.
如果出现以上内容，则代表连接已经成功了，接下来就可以愉快的搞git了
在使用github时，在项目下初始化git的时候记得定义好user.name和user.email
git config --local user.name ‘aaa‘ git config --local user.email ‘aaa@qq.com‘
如果测试连接失败，Permission denied (publickey).原因是们自定义了 id_rsa_github 钥匙名，默认情况下，连接会搜索 id_rsa 钥匙名，所以这里会失败
可以通过以下操作了解连接失败的具体原因
ssh -T -v git@github.com
针对这个问题的解决方案如下
# 开启 agent eval $(ssh-agent -s) ←┘ Agent pid 8428
# 添加 钥匙名 ssh-add ~/.ssh/id_rsa_github ←┘ Identity added: /c/Users/user/.ssh/id_rsa_github (/c/Users/user/.ssh/id_rsa_github)
# 不用时可以关闭 agent eval $(ssh-agent -k) ←┘ Agent pid 8428 killed
如果初始化仓库的时候报以下错误
ssh: Could not resolve hostname https: nodename nor servname provided, or not known fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists.
则查看一下自己的git的配置
$ git remote -v
将git地址由ssh方式改为https方式即可
原文：https://www.cnblogs.com/yrxns/p/11271182.html