|United States Patent Application
| Riedel; Wolfgang Arno ; et al.
|| June 9, 2016
Policy Implementation at a Network Element based on Data from an Authoritative Source
In an embodiment, at a network element in a network, a domain name query is intercepted from a client. Metadata
associated with a network application or service that is the object of the domain name query is obtained from a domain name system server. A policy is determined to enforce, based on the metadata
, and the policy is enforced with respect to the client’s access of the network application or service.