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
{
"id": "a1bc82de-4cc5-40ca-bfb3-4e93bd9a367c",
"type": "secondaryzone",
"href": "/secondaryzones/a1bc82de-4cc5-40ca-bfb3-4e93bd9a367c",
"metadata": {
"createdDate": "2023-08-04T10:21:32+00:00",
"lastModifiedDate": "2023-08-04T10:21:33+00:00",
"nameservers": [
"nscs-ic.ui-dns.com",
"nscs-ic.ui-dns.de",
"nscs-ic.ui-dns.org",
"nscs-ic.ui-dns.biz"
],
"state": "AVAILABLE"
},
"properties": {
"description": "This is a secondary zone created in IONOS Cloud DNS",
"primaryIps": [
"1.2.3.4",
"5.6.7.8"
],
"zoneName": "example.com"
}
}
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.
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.
{
"id": "04706207-a691-4710-902d-10acf5441bf1",
"type": "secondaryzone",
"href": "/secondaryzones/04706207-a691-4710-902d-10acf5441bf1",
"metadata": {
"createdDate": "2023-08-04T13:15:46+00:00",
"lastModifiedDate": "2023-08-04T13:15:46+00:00",
"nameservers": [
"nscs-ic.ui-dns.com",
"nscs-ic.ui-dns.de",
"nscs-ic.ui-dns.org",
"nscs-ic.ui-dns.biz"
],
"state": "AVAILABLE"
},
"properties": {
"description": "This is a secondary zone created in IONOS Cloud DNS",
"primaryIps": [
"1.2.3.4",
"5.6.7.8"
],
"zoneName": "example.org"
}
}
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.
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.
