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dns domain
Function
The dns domain command configures a domain name suffix of a server or a host on a DNS client that the DNS client wants to access.
The undo dns domain command deletes a configured domain name suffix from a DNS client.
By default, no domain name suffix is configured on a DNS client.
Parameters
| Parameter | Description | Value |
|---|---|---|
| domain-name | Specifies a domain name suffix on a DNS Client. | The value is a string of 1 to 64 characters, spaces not supported. The string is a combination of digits, letters, underscores (_), dots (.), and hyphen (-). |
Usage Guidelines
Application Scenario
Generally, the domain name suffixes of some servers or hosts that a DNS client accesses are the same, for example, com.cn. In this case, you can set the domain name suffixes. When a DNS client accesses a host:
- If the entered domain name does not carry dots (.), for example, "huawei", the system first adds the suffix com.cn to the domain name and sends a domain name request of "huawei.com.cn" to the DNS server to find the IP address corresponding to the domain name. If the DNS client does not receive any response from the server, it sends a domain name request of "huawei" to the DNS server to find the IP address corresponding to the domain name.
- If the entered domain name carries dots (.), for example, "ilite.huawei", the system first sends a domain name request of "ilite.huawei" to the DNS server to find the IP address corresponding to the domain name. If the DNS client does not receive any response from the server, it adds the suffix com.cn to the domain name and sends a domain name request of "ilite.huawei.com.cn" to the DNS server to find the IP address corresponding to the domain name.
Precautions
A DNS client supports a maximum of 10 domain name suffixes. To configure multiple domain name suffixes, you can run the dns domain command repeatedly.
If the name of the suffix to be deleted is specified, the specified suffix is deleted. Otherwise, all the suffixes are deleted.
Related Topics
