Prerequisite: Before creating a secondary DNS zone with IONOS Cloud DNS, ensure that the primary zone is capable of establishing a zone transfer with the secondary DNS server; this means port 53 is open for TCP and UDP connections.
To create a secondary zone on the IONOS Cloud DNS, follow this step:
Perform a POST request to the /secondaryzones endpoint by providing the zoneName, description, and primaryIps for the IP address of the primary nameserver.
Note: For sending DNS notify messages, Cloud DNS uses following Anycast addresses: IPv4 212.227.123.25 or IPv6 2001:8d8:fe:53::5cd:25.
Result: On a successful POST request, you receive a response containing the secondary DNS zone UUID, Name Servers, primaryIps, and the request status.
Request
curl--location'https://dns.de-fra.ionos.com/secondaryzones' \--header 'Content-Type: application/json' \--header 'Authorization: Bearer eyJ0eXAiOiJKV1QiLCJraWQiO' \--data '{ "properties": { "zoneName": "example.com", "description": "This is a secondary zone created in IONOS Cloud DNS", "primaryIps": [ "1.2.3.4", "5.6.7.8" ] }}'
Response
202 Accepted
Retrieve all secondary zones
To retrieve information about all the secondary zones, follow this step:
Send a GET request to the /secondaryzones endpoint.
Result: On a successful GET request, you receive a response containing all secondary DNS zones.
Request
Response
200 OK
Retrieve a specific secondary zone information
To retrieve information about a specific secondary zone, follow this step:
Send a GET request to the /secondaryzones/{secondaryzoneId} endpoint.
Result: On a successful GET request, you receive a response containing the secondary DNS zone UUID, Name Servers, primaryIps, and secondary zone status.
Request
Response
Retrieve records for a specific secondary zone information
To retrieve records information about a specific secondary zone, follow this step:
Send a GET request to the /secondaryzones/{secondaryzoneId}/records endpoint.
Result: On a successful GET request, you receive a response containing the secondary DNS zone records information: status,content, type, priority, TTL and name.
Request
Response
Modify secondary zone
To modify the description of a secondary zone or update the IP addresses of its primary nameserver, follow this step:
Send a PUT request to the /secondaryzones/{secondaryzoneId} endpoint.
Result: On a successful PUT request, you receive a response containing the secondary DNS zone metadata with the new updated properties.
Request
Response
202 Accepted
Initiate zone transfer to a secondary zone
Note: The creation of a secondary zone initiates zone transfer. In case of disrupted network connectivity at this time, you can initiate the zone transfer manually between the primary and secondary (i.e. secondary name server could not access primary nameserver on port 53) zones.
To initiate zone transfer from the primary zone to the secondary zone, follow this step:
Send a PUT request to the /secondaryzones/{secondaryzoneId}/axfr endpoint.
Note: For sending DNS notify messages, Cloud DNS uses following Anycast addresses: IPv4 212.227.123.25 or IPv6 2001:8d8:fe:53::5cd:25.
Result: On a successful PUT request, you receive an HTTP response 200 OK.
Request
Response
200 OK
Check zone transfer status
To check zone transfer status, follow this step:
Perform a GET request to /secondaryzones/{secondaryzoneId}/axfr endpoint.
Result: On a successful GET request, you receive a response for AXFR communication status for each of primaryIps.
Request
Response
200 OK
Delete a secondary zone
To delete a secondary zone from the IONOS Cloud DNS, follow this step:
Send a DELETE request to the /secondaryzones/{zoneId} endpoint.
Result: On a successful DELETE request, you receive an HTTP status 200 Accepted.
