Help Center/ IoT Device Access/ User Guide/ Device Access/ Custom Device Domain Names
Updated on 2026-03-31 GMT+08:00

Custom Device Domain Names

Overview

A custom fully qualified domain name (FQDN) for a device to connect to IoTDA. With a custom domain name, you can manage your own server certificates, including the root certificate authority (CA), signature algorithms, and certificate lifecycles.

Scenarios

  • Managing the root CAs, signature algorithms, and certificate lifecycles of server certificates.
  • Disclosing the domain names to customers for branding.
  • Inheriting the original domain names and server certificates during migration.

Constraints

  • This function is only available for the standard edition.
  • Only port 8883 connected using MQTT takes effect.
  • The device must use TLS and support SNI (Server Name Indication). The SNI must carry the required custom domain name.
  • Only one custom domain name can be configured for an IoTDA instance.

Procedure

  1. Upload the server certificate.

    In the navigation pane, choose Devices > Device Certificates > Server Certificates. On the displayed page, click Upload Certificate.

    Figure 1 Server certificate - Uploading a server certificate

  2. Configure a custom domain name.

    1. In the navigation pane, choose Overview. In the Instance Information area, click Access Details.
      Figure 2 Obtaining access information

    1. On the displayed page, click Details in the Custom Domain Name column.
      Figure 3 Access information - Custom domain name details

    1. On the displayed page, click Add Domain Name, configure parameters as prompted, and click OK.
      Figure 4 Custom domain name - Configuring a custom domain name

  3. Create a DNS record. Contact the vendor to add domain name resolution to connect the custom domain name to the IoTDA access point. Obtain the access point by referring to Platform Connection Information.