I recently installed a Wordpress Multisite and have set everything up. The one aspect that seems to have severally lacking information is how to map custom domains to each sub-site (i.e. jcs.examplesite.com to joescrabshack.com). I did see there is a plugin that 1000s of people used to do this, but it hasn't been supported now with further development in 3+ years and seems to unreliable moving forward. If anybody could share resources or tutorials on how to map sub-sites to custom domain names, I would greatly appreciate. Do I need to have a separate IP address for each to redirect via DNS?