kex_exchange_identification: Connection closed by remote hostConnection closed by ::1 port 22

kex_exchange_identification: Connection closed by remote hostConnection closed by ::1 port 22

缘起

• 拉代码仓库出错，还挺常见

https 错误原因：

fatal: unable to access ‘https://github.com/jing-zhi/go-sword-admin.git/’: SSL certificate problem: unable to get local issuer certificate

ssh 错误原因：

kex_exchange_identification: Connection closed by remote host
Connection closed by ::1 port 22
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

jingz@jing-zhi- MINGW64 /d/sanyue_project/sanyue-框架
$ git clone https://github.com/jing-zhi/go-sword-admin.git
Cloning into 'go-sword-admin'...
fatal: unable to access 'https://github.com/jing-zhi/go-sword-admin.git/': SSL certificate problem: unable to get local issuer certificate

jingz@jing-zhi- MINGW64 /d/sanyue_project/sanyue-框架
$ git clone git@github.com:jing-zhi/go-sword-admin.git
Cloning into 'go-sword-admin'...
kex_exchange_identification: Connection closed by remote host
Connection closed by ::1 port 22
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

推测

推测原因之一：github的邮箱地址和git global的email不一样

git config --global user.email  "jingzhi736728@163.com" // 设置成和我在github账号一样的邮箱
$ ssh-keygen –t rsa –C "jingzhi736728@163.com"  // 重新生成key
结果——失败了，依旧报同样错

推测其他原因等…

$ ssh -T git@github.com

检查github公钥配置情况出错。

根据报错原因，推测可能是22端口把他关闭了，先检查一下22端口号是否开启
netstat -na

如图是开启的

真正原因

之前国内对github完全封死，造成DNS域名解析错误，即便翻外网进去也不能直接拉代码了。需要一点配置

然而我有个好兄弟给我解决了

• C:\Windows\System32\drivers\etc
• 在hosts中添加github的ip地址对应：140.82.112.3 github.com