I have a domain-based network. Blogs are like:
blog1.domain.com
blog2.domain.com
One of these blogs needs to be migrated to a domain blog1.com, but without leave the network. I know I have to poing blog1.com DNS to blog1.domain.com with a CNAME register (do it), but I don’t know what to do now (in other case, not a wordpress network, I’ll simply add a ServerAlias to Apache directive, but now I don’t have any Apache directive for blog1.domain.com, just for domain.com)
You’ll want to use the Domain Mapping Plugin to accomplish this. See the installation tab on that page, it has excellent instructions!
Cheers~