Change the domain name of a port on a private network

Last update: April 27 2026

If a private network is added to the DNS zone, you can change the domain name of the port. This will update the A- or AAAA record in the zone automatically.

To see if a network has been added to the DNS zone, you can do this in the Control Panel: in the top menu, click Products → Cloud Servers → Private DNS → DNS Resolvers tab → in the network row, look for the value in the DNS zone field.

Control Panel

1. In the Dashboard, on the top menu, click Products and select Cloud Servers.

2. Go to Network → Private Networks tab.

3. Open the subnet card → Ports tab.

4. In the port bar next to the domain name, click .

5. Enter a new domain name.

6. Click Save.

OpenStack CLI

1. Open the OpenStack CLI.

2. Look at the list of ports in the subnet and copy the ID or name of the desired port:

   openstack port list subnet=<subnet>

   Specify <subnet> - The ID or name of the subnet, can be viewed with the openstack subnet list command.

3. Change the domain name of the port:

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

   Specify:

   • <subdomain> - new domain name of the port, maximum 63 characters - digits, Latin letters and hyphens;
   • <port> - The ID or name of the port you copied in step 2.