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NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services

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Maintaining DNS

Maintaining DNS

This chapter describes how to maintain DNS, which includes clearing dynamic DNS entries and monitoring the DNS running status.

Clearing Dynamic DNS Entries

This section describes how to clear dynamic DNS entries using a reset command.

Context

The dynamic DNS entries cannot be restored after they are cleared. Exercise caution when running the reset command.

Procedure

  1. After confirming the dynamic DNS entries to be deleted from the cache, run the reset dns dynamic-host [ vpn-instance vpn-name ] command in the user view.

Monitoring the DNS Running Status

This section describes how to monitor the DNS running status.

Context

In routine maintenance, you can run the following commands in all views to check the running status of DNS.

Procedure

  • Run the display ip host [ vpn-instance vpn-name ] command to check information about the static domain name resolution table.
  • Run the display dns server(IPv4) [ vpn-instance vpn-name ] command to check DNS server configurations.
  • Run the display dns domain(IPv4) [ vpn-instance vpn-name ] command to check domain name suffixes.
  • Run the display dns dynamic-host [ vpn-instance vpn-name ] command to check information about dynamic DNS entries in the cache.
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Updated: 2019-01-02

Document ID: EDOC1100055376

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