Alibaba Cloud DNS:Address configuration

Terms

Address: An address represents your actual service endpoint. The health status of an address indicates whether your service is available. Global Traffic Manager (GTM) supports IPv4, IPv6, and domain name address types. An Address Pool can contain multiple addresses, and an address can be used by multiple Address Pool.

Create an address

1. Go to the Alibaba Cloud DNS - Global Traffic Manager console.

2. Click Address > Create Address.

3. On the Create Address page, click the address icon > Basic Configuration.

   

4. Configure the parameters and submit the form.

   Form Item	Description
   Address Name	Enter a name for the address that is easy to remember and identify. The name can be in Chinese, English, or other languages.
   Type	The address can be an IP address or a domain name. IP addresses can be IPv4 or IPv6. You can also use a Zone name. Note IP addresses are commonly used. However, because your service endpoint might be a domain name for services such as CDN, Anti-DDoS Pro and Anti-DDoS Premium, or a firewall, we also support domain names as an address type.
   Service Address	Enter the Service Address based on the selected address type. If you select IPv4 as the address type, enter the IPv4 address of your application service. If you select Domain Name, enter the domain name of your application service.
   Health Check	Optional. If you do not configure a health check, the default status of the address is Normal. To configure a health check, create a health check template in advance. For more information, see 4. Health check templates. Port: The port number of the service endpoint that the health check probes. Note You can configure up to 5 ports. The port number can be an integer in the range of 0 - 65535, including 0 and 65535, where a value of 0 indicates any port. Health Check Template: The health check protocol used to probe the port. It supports a combination of protocols, such as Ping, TCP, and HTTP(S). You can directly associate an existing health check template.
   Health Status Conditions	The condition to determine if the current address is normal. The threshold is calculated as: Number of normal health check templates / Total number of associated health check templates. The following options are available: At least one probe in all health check templates must be normal Detection results of at least 30% of templates are normal. Detection results of at least 50% of templates are normal. Detection results of at least 70% of templates are normal. Detection results of all detection templates are normal.
   Enabed State	Set to Enabled by default. If set to Disabled, Address Pool that reference this address will no longer return it. Note If an address is disabled, health checks still run if a health check template is configured.
   Remarks	Enter a remark to help you identify the address.

   

Attach a Health Check Template to an address

If you did not attach a health check template when you created the address, you can follow these steps to attach one and monitor the health status of the address.

1. Go to the Alibaba Cloud DNS - Global Traffic Manager console.

2. Click Address, find the target address, and click Configuration to open the configuration details page.

3. Click the address icon > Basic Configuration to open the configuration panel.

4. From the drop-down list, select a pre-configured Health Check Template. If the Health Check Template type is Ping, you do not need to enter a port number. If the Health Check Template type is TCP, HTTP, or HTTPS, you must specify a port number.

   Note

   You can set a maximum of five health check ports for a single address.

   You can specify multiple Health Check Template of the same type for each record. The same address can be used in multiple records.

   

Manage addresses

Unbind Current Address

Impact: The address is removed from the current address pool. GTM no longer routes requests to this address. If a health check template is attached to the address, the health check task continues to run.

1. On the Access Domain configuration page, click the address icon > Unbind Current Address.

   

2. Confirm the operation in the dialog box that appears.