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Subdomains where nameservers are not changeable.

Posted on January 14, 2018

I have a private domain registered with a UK based company (claranet). On the Domain admin it doesn’t let you change the nameservers so I can’t point them to DigitalOcean.

I have added an A record so that the global domain works pointed to a test virtual host. I’ve also added letsencrypt so that the HTTPS works correctly.

I am trying to add subdomains so I can have <subdomain>.mydomain.net or to redirect <www>.domain.net to domain.net but I can’t find any information about what the content of the C record should be so that it will work.

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Miroslav Kuhajda

January 18, 2018

It’s not C record but CNAME record. You should have: DNS type A record for main site mydomain.net with DNS value of your Droplet IP

( wildcard ) DNS type CNAME record for all subdomains on mydomain.net with DNS value of mydomain.net or mydomain.net. ( some provides need . at the end of the CNAME value ).

This set DNS for main domain to Droplet IP and everything else to main domain.

So mydomain.net has IP 1.2.3.4 , www.mydomain.net return mydomain.net and that return 1.2.3.4., test.mydomain.net return mydomain.net and that return 1.2.3.4..

But if you want to redirect all site users from all sudomains to main domain, you must redirect this with webserver ( Nginx / Apache2 / … ). DNS is one step, redirect via webserver is another step.

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