I have a multisite installation running fine with two sites. I can access both of them with no problems using the urls mydomain.com/site1 and mydomain.com/site2.
The problem is that I need to configure my site1 to be accessed from an url of another domain, ex: anotherdomain.com
How can I achieve this? I changed my site's URL on the Network dashboard to anotherdomain.com and it's dns pointing to mydomain.com. It didn't work, my main site is displayed.