mac m1 webstrom突然就拉取不了

突然某一天打开webstrom拉取就报错

ssh: connect to host github.com port 22: Operation timed out fatal
Please make sure you have the correct access rights
and the repository exists.

一开始以为是github ssh密钥过期啥的，就重新去./ssh文件夹找到id_rsa.pub文件复制密钥到github上去，保存，软件什么的都重新打开，然后拉取还是报一样的错误，

tips : m1电脑打开ssh文件夹：打开访达，快捷键shift+command+g，然后输入 ～/ssh 夹能看id_rsa.pub文件了

1》直接终端输入ssh -T git@github.com

报一样的错

2》修改config文件，照这个链接的修改

Mac 终端 Git 问题解决：Failed to connect to github.com port 443: Operation timed out - 简书

注意 : hosts文件（这一步不确定有没有起作用），打开访达，快捷键shift+command+g,  private>etc>hosts，打开文件在最后添加

20.205.243.166  github.com

Git克隆提交出现“ssh: connect to host github.com port 22: Operation timed out fatal”问题 - 简书

3》在ssh文件夹中新加config文件，设置端口为443

Host github.com
User youremail@qq.com
Hostname ssh.github.com
IdentityFile ~/.ssh/id_rsa
Port 443

4》 尝试在webstorm拉取,报错

    更新失败
            Connection closed by 20.205.243.160 port 443
            Could not read from remote repository.
            Please make sure you have the correct access rights
            and the repository exists.

5》 输入ssh -T git@github.com有报错：

The authenticity of host '[ssh.github.com]:443 ([20.205.243.160]:443)' can't be established.

Are you sure you want to continue connecting (yes/no/[fingerprint])? y

Please type 'yes', 'no' or the fingerprint:

5》输入yes

Permanently added '[ssh.github.com]:443' (ED25519) to the list of known hosts.

6》输入ssh -T git@github.com

Connection closed by 20.205.243.160 port 443

7》输入指令刷新DNS

sudo killall -HUP mDNSResponder;say DNS cache has been flushed

Hi xxx! You've successfully authenticated, but GitHub does not provide shell access.

8》再重新生成一下ssh_key

输入ssh-keygen -t rsa -C "youremail@qq.com"

一直回车，创建成功后去ssh文件夹打开id_rsa.pub文件把里面的内容全部复制，去github的ssh设置里面新加一个复制进去