DNS & ResellerClub
New servers get a hostname and nameservers so you can give clients consistent, white-label DNS. The platform uses ResellerClub (e.g. ColoDNS) to create A records for the hostname and the two nameserver hostnames pointing to the server’s IPv4. You can use the platform’s ResellerClub account (admin-configured) or your own.
Where to configure DNS
Resellers can set DNS in two places:
- Server Manager → DNS (
/server-manager/dns) – White-label hostnames and optional “Use my own ResellerClub account” with Reseller ID, API key, and optional Order ID. - Server Manager → Reseller settings (
/server-manager/reseller/settings) – Same options in one form with Contabo API and ResellerClub; includes Test connection.
Hostname and nameserver format
Values are built from a base domain and prefixes/suffixes. Example with base domain colodns.com, hostname prefix vmi, and instance ID 0001:
- Hostname:
vmi0001.colodns.com(prefix + instanceId + base domain) - NS1:
vmi0001ns1.colodns.com(prefix + instanceId + ns1 suffix + base domain) - NS2:
vmi0001ns2.colodns.com(prefix + instanceId + ns2 suffix + base domain)
Configurable fields:
- Base domain – e.g.
colodns.com - Hostname prefix – e.g.
vmi - NS1 suffix – e.g.
ns1 - NS2 suffix – e.g.
ns2
Platform vs your own ResellerClub
- If you do not enable “Use my own ResellerClub account”, the platform uses Admin ResellerClub settings (configured by the provider). New servers still get hostnames/nameservers in the format above; A records are created using the admin’s ResellerClub credentials. See Admin ResellerClub settings.
- If you enable “Use my own ResellerClub account” and enter your Reseller ID and API key, the platform uses your ResellerClub account to create DNS records for your servers. You can optionally set a colodns Order ID; if left blank, the system looks up the order ID by base domain (e.g. colodns.com) when needed.
Order ID optional (lookup by domain)
Both admin and reseller settings support an optional ResellerClub Order ID for the base domain. If Order ID is left blank, the system looks up the order ID by domain name (ResellerClub domains/orderid with domain-name). This allows you to use the same base domain without having to find the order ID manually.
When DNS records are created
When you create a new server, after the instance is provisioned and has an IPv4, the platform creates ResellerClub A records for:
- Hostname → server IPv4
- NS1 hostname → server IPv4
- NS2 hostname → server IPv4
This happens only if effective ResellerClub settings (yours or admin’s) are available and the API call succeeds; failures are logged but do not block server creation.