Git错误之无法连接github

问题 最近在用git提交代码到github时失败了，出现了如下图所示的错误，最后网上搜索许多资料找到了解决方法，特记录于此。 错误日志:ssh: Could not resolve hostname github.com: Name or service not known.fatal: Could not read from remote repository. Please make sure

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