I run a home environment, of servers (mostly as hyper-v) question, how many servers do i need to run a fully fledged domain. DHCP, DNS, Certificate authoirty, Primary DC, WDS, WUSUS, gpo. The reason i ask is it seems that alot of services conflict and thus cannot be run one the same server. for instance can the certificate authority run on a DC if not does DHCP and DNS conflict with Certificate authority? Any imput gratefully received.