# Domain name in a WordPress Network

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)

-