Change port domain name in a private network

You can change the domain name of a cloud server or Managed Kubernetes cluster port. If the private network is added to a DNS zone, the corresponding A or AAAA record in the DNS zone will be updated automatically.

Control panel

1. In the control panel, from the top menu, click Products and select Cloud Servers.

2. Go to the Network → Private networks tab.

3. Open the network page.

4. Make sure that the network is added to a DNS zone: check whether there is a DNS zone field with the zone name under the network name. If there is no field, the network is not added to the zone — add the network to a DNS zone and return to step 1.

5. Open the Ports tab.

6. In the port card of the cloud server or Managed Kubernetes cluster, next to the domain name, click .

7. Enter a new domain name.

8. Click Save.

OpenStack CLI

1. Make sure that the network is added to a DNS zone:

   1.1. In the control panel, from the top menu, click Products and select Cloud Servers.

   1.2. Go to the Network → Private networks tab.

   1.3. Open the network page.

   1.4. Check whether there is a DNS zone field with the zone name under the network name. If there is no field, the network is not added to the zone — add the network to a DNS zone and return to step 1.

2. Open the OpenStack CLI.

3. View the list of ports in the subnet and copy the ID or name of the required port:

   openstack port list --subnet <subnet>

   Specify <subnet> — the ID or name of the subnet; you can view it using the openstack subnet list command.

4. Change the port domain name:

   openstack port set --dns-name <subdomain> <port>

   Specify:

   • <subdomain> — new domain name of the port, up to 63 characters: digits, Latin letters, and hyphens;
   • <port> — ID or name of the port that you copied in step 2.