Linux 全局代理脚本 操作说明见博客:https://poriams.github.io/%E5%AF%B9-linux-%E5%85%A8%E5%B1%80%E4%BB%A3%E7%90%86%E7%9A%84%E6%8E%A2%E7%B4%A2/#%E8%8C%AF%E8%8B%93%E5%9F%BA%E4%BA%8E-gost-%E7%9A%84%E9%80%8F%E6%98%8E%E4%BB%A3%E7%90%86