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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 13

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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DNS Overview

DNS Overview

This section describes the definition and purpose of DNS.


Domain Name System (DNS) is a distributed database used in TCP and IP applications and completes resolution between IP addresses and domain names.


Each host on the network is identified by an IP address. To access a host, a user must obtain the host IP address first. It is difficult for users to remember IP addresses of hosts. Therefore, host names in the format of strings are designed. Each host name maps an IP address. In this way, users can use the simple and meaningful domain names instead of the complicated IP addresses to access hosts.

Updated: 2019-12-13

Document ID: EDOC1000041694

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