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Xfinity DNS (XDNS) is a feature that classifies DNS requests from connected user devices. The XDNS server will apply policy such as URL filtering based on the request classification. XBC-39 describes the Product requirements and RDKB-7792 is the corresponding RDKB ticket.

XDNS contains two functional components:

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This will leverage the Crystalball Batch Process architecture. The following is the high-level architecture diagram:

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DNS Cluster will mirror or packet capture all the DNS request and responses to the Kafka Cluster. For XDNS, the Producer process will filter DNS response that contains CNAME with "xdns.xfinity.net". This will help to reduce the number of messages to the Crystalball infrastructure.

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