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Method and system for allowing the use of domain name based network policies stored in a second device in enforcing network policy at a first device
Method and system for allowing the use of domain name based network policies stored in a second device in enforcing network policy at a first device
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机译:在第一设备执行网络策略时允许使用存储在第二设备中的基于域名的网络策略的方法和系统
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摘要
A method and a system for creating Internet Protocol address based network policies (IPPs) by using domain name based network policies (DNNTPs) is disclosed. The DNNTPs are stored in a second device, and are used for enforcing IPPs at a first device. The first device retrieves one or more DNNTPs from the second device and monitors network traffic for Domain Name System (DNS) look-up reply. When a network device receives a record Domain Name System look-up reply, the network device identifies one or more Internet Protocol addresses of one or more host names specified in the address record Domain Name System look-up reply, then determine whether the one or more host names contain a domain name used in one or more DNNTPs and create one or more IPPs.
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