Applying the DDNS policy to an interface
After you apply the DDNS policy to an interface and specify the FQDN for update, the DDNS client sends requests to the DDNS server to update the mapping between the domain name and the primary IP address of the interface at the specified interval.
Before you apply a DDNS policy to an interface, complete the following tasks:
Specify the primary IP address of the interface and make sure the DDNS server and the interface can reach each other.
Configure static or dynamic domain name resolution to translate the domain name of the DDNS server into the IPv4 address. For more information, see "Configuring the IPv4 DNS client."
To apply the DDNS policy to an interface:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Apply the DDNS policy to the interface to update the mapping between the specified FQDN and the primary IP address of the interface, and enable DDNS update. | ddns apply policy policy-name [ fqdn domain-name ] | By default, no DDNS policy is applied to the interface, no FQDN is specified for update, and DDNS update is disabled. The fqdn domain-name option must be specified for all DDNS servers except the PeanutHull DDNS server. |
![[NOTE: ]](images/note.png) | NOTE: If no FQDN is specified for the PeanutHull DDNS server, the DDNS server updates all domain names of the DDNS client account. If an FQDN is specified, the DDNS server updates only the mapping between the specified FQDN and the primary IP address. | |