Revproxy

此处的帮助文档已经废弃，请查看镜像站主页获取目前反代的情况。

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各资源的对应关系如下

  registry-1.docker.io          docker.mirrors.ustc.edu.cn
  packages.elastic.co           elastic.proxy.ustclug.org
  ppa.launchpad.net             launchpad.proxy.ustclug.org
  archive.cloudera.com/cdh5/    cloudera.proxy.ustclug.org/cdh5/
  downloads.lede-project.org    lede.proxy.ustclug.org
  downloads.openwrt.org         openwrt.proxy.ustclug.org
  registry.npmjs.org            npmreg.proxy.ustclug.org
  www.npmjs.com                 npm.proxy.ustclug.org
  fonts.gstatic.com             fonts-gstatic.proxy.ustclug.org
  fonts.googleapis.com          fonts.proxy.ustclug.org
  ajax.googleapis.com           ajax.proxy.ustclug.org
  themes.googleusercontent.com  google-themes.proxy.ustclug.org
  secure.gravatar.com           gravatar.proxy.ustclug.org