[Feature Request] Add an option redirect www-alias to non-www

[xolyu]

While creating a domain I can choose "ServerAlias value for the domain" as WWW (www.domain.tld). That's great because there is a ServerAlias in the vhost and the certificate is requested with alternative name as www.domain.tld - so there is only one cert for the domain and it's www-alias.

But: Now your page is served by two domains (the bare one and the www alias) and you end up with duplicate content (e.g. bad for SEO).

Describe the solution you'd like
In the "Webserver settings" of the add/edit domain page
A select field "Redirect www" with options:

• No redirect
• www -> non-www
• non-www -> www

Describe alternatives you've considered
Currently it's possible for the customer to create a subdomain www and redirect them to the bare domain name. But this is more an "expensive" workaround. Expensive because: multiple certificates, multiple vhosts, more manual action required.

[d00p]

actually, it is possible using e.g. .htaccess or in case of nginx, the admin would need to add these rules to the domain-vhost