remote: Support for password authentication was removed on August 13, 2021. Please use a personal access token instead.
remote: Please see https://github.blog/2020-12-15-token-authentication-requirements-for-git-operations/ for more information.
fatal: unable to access 'https://github.com/PluginsKers/DataHub.git/': The requested URL returned error: 403

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0x00前言

1.ICMP
没病ping一下。比如ping www.baidu.com,看是否有来自某IP的回复信息
2.TCP
有nc的话可以试试某个IP端口是否可达nc -n IP port(如果是域名形式不要加-n参数,啊当然不加-n也可以接IP的)
前提是测试主机上有nc(netcat)

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