Differences between the smart DNS and the transparent DNS proxy supported by the USG6000

The USG6000 supports the smart DNS and the transparent DNS proxy.

The same points are as follows:
(1) Both the smart DNS and the transparent DNS proxy provide the DNS service.
(2) Both the smart DNS and the transparent DNS proxy provide appropriate access paths for users by means of interfering DNS behaviors.
(3) Both the smart DNS and the transparent DNS proxy are implemented by the firewall (non-DNS server).
The differences are as follows:
(1) The application scenarios of the smart DNS and the transparent DNS proxy are different. The transparent DNS proxy is used to control the path used by users inside the enterprise zone to access external network resources and aims to improve the bidirectional outbound interface bandwidth usage; the smart DNS is used to control the path used by users outside the enterprise zone (Internet users) to access the internal servers and aims to select the shortest path to avoid inter-ISP access.
(2) Locations of DNS servers are different. The DNS server of the transparent DNS proxy is deployed at the ISP side, and the DNS server of the smart DNS is deployed at the enterprise side.
(3) User locations, accessed resource locations, and access directions are different.

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