#Github 昨天突然就操作不了GitHub仓库,push、pull都不行。折腾了代理,又换了ssh-key都不行。经过搜索,找到了解决方案
```
kex_exchange_identification: Connection closed by remote host
Connection closed by 127.0.0.1 port 7890
```
```
kex_exchange_identification: Connection closed by remote host
Connection closed by 127.0.0.1 port 7890
```
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