As far as I know, all of them are running as I fallowed the Perfect Fedora 4 installation. I have always relied on an external DNS service to do my work. Now I would like to do it myself for education's sake. Is this the procedure? 1. Go to www.mainwebhostserver.com registrar and make it authorative by adding the NameServer: ns1.webhostserver.com ns2.webhostserver.com 2. Point NS in registrar for www.clienthosting1.com, www.clienthosting2.com, www.clienthosting3.com, and so on to: ns1.webhostserver.com ns2.webhostserver.com In GoDaddy, I have the option to add Domain Hosts. But it says the fallowing: Then there is a blank to enter the ns1 and ns2. What I don't understand is why it requires an IP address. It would not make sense to pair an IP address with the Domain Hosts since my IP is dynamic. So does this mean I can not run a DNS Server?