One solution is to send BGP updates via a separate network from other data, but this is impractical as it would essentially involve building a shadow Internet.
一个解决方案是通过隔离的网络从其他数据发出边界网关协议更新信息，但是这是不切实际的，因为其必须建立一个影子互联网。
Password file-base authentication: authentication is based on the password and shadow files or interaction with Network Information System (NIS), on the machine where the database server is installed.
基于密码文件的身份验证：身份验证基于安装数据库服务器的机器上的密码和影子文件，或者与Net work Information System (NIS)的交互。
We have used the Internet and modern communications technologies to create a shadow-banking system, an unregulated lending network that was, by 2007, as large as the traditional banking system.
我们也用网络和现代交流技术创建了影子银行系统，相对于传统银行体系，一个直到2007年没有任何监管的借贷网络。
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