I have setup Wordpress Multisite on a bitnami image (on AWS). I have numerous domains working fine, each with their own WP site. (eg: a.com, b.com, c.com)
I also have some alias domains (a1.com, a2.com, a3.com) that I would like to be handled by the existing a.com wordpress site.
I have setup dns to point a1.com to the same host as a.com. But this always takes me to the default WP site with the message about creating a new site. Not what I want.
I don't want to edit the VirtualHost settings in apache if possible. Is there a way for WordPress to accept all 4 domain names as the same site (a.com) ?
I have it working by creating a separate site for a1.com, another for a2.com etc, and using a redirect plugin to use a 503 to send the user to a.com. However, this seems too complicated. Surely there is a better way to do this?