Member Avatar for basketmen

Hi guys,

I want to put some subdomain.mydomain.com in another server

i understand in current server, in WHM > Edit DNS Zone > mydomain.com > i just need to add A record like
subdomain A 222.222.222.222(another server IP)

before that, i need to set the another server first, so i want to order a reseller hosting for the another server.
My question is what domain i need to put in the order form? Is it ok still put mydomain.com?

Because i tried put subdomain.mydomain.com but its says not valid domain. Its standart hosting order form, using WHMCS

and what nameserver i need to use in the another server WHM later > Basic cPanel & WHM Setup > Nameservers, is it still ns1.mydomain.com and ns2.mydomain.com like current server use? Where i need to create the nameserver for the another server?

please help, this should be easy if you have done it before

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  • Latest Post Latest Post by JorgeM

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Short answer: you can host a subdomain on a different server two ways — keep the parent DNS where it is and point the subdomain at the new host, or delegate the subdomain to the new host so it becomes an independent DNS zone. is right that the exact steps depend on the provider/WHMCS validation, which is why your order form rejected a subdomain. Practical guidance below.

If you want the simplest route (no registrar changes): keep DNS for mydomain.com on your current server and, after the reseller server is provisioned, create a cPanel/WHM account on the new server using the subdomain as the account domain. On the current DNS server add the record that points the sub-hostname to the new server’s address, lower TTL before the cutover, verify the webserver on the new side has a matching vhost/CPANEL account, and install SSL there. Verify with dig/nslookup and curl from an external host.

If you want the new server to be authoritative for the subdomain (useful if it will host many records): delegate the subdomain. Steps:

  • In the parent zone add NS records delegating the subdomain to nameserver hostnames you control.
  • At the registrar create host/“glue” records mapping those nameserver names to the new server IPs.
  • On the new server create the DNS zone for the subdomain and populate A/MX/etc. records.

Example checks:

dig +short subdomain.mydomain.com A
dig +short subdomain.mydomain.com NS

About the WHMCS/order-form field: most providers expect a registered SLD+TLD there (e.g., mydomain.com). If WHMCS rejects a subdomain, use the registered domain for ordering and then create the subdomain account manually in WHM, or ask the provider to allow provisioning for a subdomain. If you plan to reuse names like ns1.mydomain.com for the new server, remember to create matching glue records at the registrar and ensure you don’t end up with two competing authoritative zones for the same name.

Member Avatar for JorgeM

Is it ok still put mydomain.com?

No, you need to specify the sub-domain.

Because i tried put subdomain.mydomain.com but its says not valid domain.

The process is going to be dependent on your provider. This is not a limitation of a web server or DNS. Maybe they are checking to see if the domain name exists. You can go ahead and create a sub-domain in your DNS management ahead of time if you have the IP address you are going to point to.

and what nameserver i need to use in the another server WHM later > Basic cPanel & WHM Setup > Nameservers, is it still ns1.mydomain.com and ns2.mydomain.com like current server use?

That depends on where you plan on hosting the subdomain information. You can keep it all together in one zone, or you can split it by providing the NS records on where you plan on hosting the DNS zone. That is up to you. Generally, in DNS, you split the zones because of a few reasons, one being that different groups manage different parts of the namespace. However, if you or a single group is managing both the parent and subdomain, there really is no reason to split it between name servers.

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