new subdomain to apply as main domain

You will need to modify some values directly in the database in order to change the url of your primary domain. The values in the following tables needs to be modified: wp_options, wp_site, wp_sitemeta, wp_blogs and wp_#_options Try this link it has all the steps involved in detail

Multiple domains showing same content

There are several problems in your logic, as WordPress won’t know which domain is going to handle actions. Even if you use a symlink from the other domain to point to .com domain, or even if you use htaccess rules to redirect requests, when a user upload some image, will they be saved as .com.au … Read more

WordPress domain configuration on a different server

Directing a new domain to a site the following components be configured: The DNS records for your domain are configured with the IP address of your hosting provider. A records are the critical records and are usually used in combination with CNAME records. Your hosting provider’s documentation the correct IP addresses to use, and your … Read more

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