How to move client

[alexcar]

We have acquired a client and he has about 20 sites. Let's move him to our own server and I don't want to have
any downtime while this happens.
So, whats the best method to accomplish this?
Anybody have any experience with this sort of stuff? Any and all ideas are welcome.

Thanks!

 

[Beto]

just add all the sites to your server and then change the dns ...