How to manage DNS records

Before you start

To complete the actions presented below, you must have:

• A Scaleway account logged into the console
• Owner status or IAM permissions allowing you to perform actions in the intended Organization
• Linked your domain with Scaleway Domains and DNS

How to add DNS records

1. Click Domains and DNS in the Network section of the Scaleway console side menu.
2. Click the domain you want to manage. The domain’s Overview page displays.
3. Click the DNS zones tab. A list of the DNS zones you have configured within the selected domain displays.
4. Click the DNS zone you want to add a record in.
5. Click + Add records. A pop-up displays.
6. Fill in the required information for the record.
7. Click Add records to confirm.

How to edit DNS records

1. Click Domains and DNS in the Network section of the Scaleway console side menu.
2. Click the domain you want to manage. The domain’s Overview page displays.
3. Click the DNS zones tab. A list of the DNS zones you have configured within the selected domain displays.
4. Click the DNS zone you want to edit.
5. Click the «Edit Icon» icon next to the record you want to edit. A pop-up displays.
6. Fill in the required information.
7. Click Edit record.

How to delete DNS records

1. Click Domains and DNS in the Network section of the Scaleway console side menu.
2. Click the domain you want to manage. The domain’s Overview page displays.
3. Click the DNS zones tab. A list of the DNS zones you have configured within the selected domain displays.
4. Click the DNS zone containing the record you want to delete.
5. Click the «Delete Icon» icon next to the record you want to delete.
6. Type DELETE to confirm when prompted, then click Delete record.

How to configure dynamic records

Scaleway Domains and DNS provides advanced features for traffic management using your DNS zone. It allows you to redirect users based on their geolocation, the load on your different servers, and more.

Weight Records

You provide a list of IPs with their corresponding “weights”. These weights are used to proportionally direct requests to each IP. Depending on the weight of a record, more or fewer requests are answered with its related IP compared to the others in the list.

Geo IP Records

The Geo IP feature provides DNS resolution, based on the user’s geographical location. You can define a default IP which resolves if no Geo IP rule matches, and specify IPs for each geographical zone.

Health check records

The DNS service performs health checks as follows:

• You define a list of IPs (a pool) reachable via a single URL.
• The servers in the IP pool are contacted by their IP, and an HTTP GET request is sent to each, with the URL as a parameter.
• Each IP passes the health check if it sends a response which includes a predefined string.

Having established the ‘healthy’ IPs, the DNS service responds to requests using one of the following strategies:

• Random: It sends a random healthy IP.
• Hashed: It uses the caller’s IP address to send a specific random healthy IP, which will always be returned for this caller IP.
• All: It sends all healthy IPs in a random order.

If none of the addresses in the IP list has passed the health check, it sends a fallback IP.

The following values should be provided to use the DNS health check service:

• Fallback IP: The fallback IP address to return if all health checks fail.
• URL: A (common) URL to use in GET (e.g. http://example.com/healthcheck).
• Data: The string to look for in the GET result (e.g. IamHealthy).
• Response strategy: The strategy to use. It can either be random or hashed.
  • Random: A random IP from the pool of healthy IPs is returned upon each request.
  • Hashed: The same (random) IP, from the pool of healthy IPs is always returned to the same caller IP.
  • All: All IPs from the pool of healthy IPs are returned in a random order.
• IPs: A list of IPs to test during the check (e.g. 1.2.3.4, 2.3.4.5).

Views records

The answer to a DNS request is based on the client’s (resolver’s) subnet.