Prevent subdomain to be registered for hosting plan

[Artis]

Hi, 

 

I have one quick question, is it possible to prevent clients to register subdomains as hosting plan? I'm using Blesta 4.1 and DirectAdmin module and I notice that many clients are using subdomain for registration and that is causing me problems so I want to prevent this.

Any hint where this option is located or how I can prevent this in Blesta?

[Paul]

They are ordering a Directadmin hosting account for say sub.domain.com? It's difficult to distinguish between a domain and a subdomain with all of the multi-level TLDs out there. For example, a regular expression that prevented sub.domain.com may also prevent domain.co.uk

[Artis]

Yes clients are ordering 99$ hosting plan for subdomain

I just want to stop this can you tell me any hint where do I need to code this future in order form or with module?

I think that this is easy to check with regular expression and I can exclude .co.uk domain name as I sell only that domain name for hosting plans, all other domains like com.in I'm not selling so I can add if statement and process it  

[Blesta Addons]

4 hours ago, Artis said:

Yes clients are ordering 99$ hosting plan for subdomain

for me, if they pay i don't matter if is sub-domain or domain or nonexistent domain . they need just to respect our terms and don't abuse our system .