Adding a Second Domain to LAN

By shockaholic ·

I have seen several different topics with similar questions but looking to get a little more "specialized" info on my environment. We have an existing domain (company.local) now that all of our workstations and servers are members. We use Windows Servers for the internal DNS for the company.local domain. The one saving grace that may make things a little easier for adding a secondary domain, which we would want to call is that our DHCP is handled by our Cisco core switch. We have a few different VLAN's on the switch stack with the server stuff being on a separate subnet from the end user subnets and all access being controlled by our firewall. The goal is to start by adding a single new Windows Server 2012 R2 and make it a domain controller for the domain. I eventually want to phase out the company.local domain and have all the existing servers/workstations unjoin the company.local domain and join the domain. Our functional level for the company.local domain is currently at 2012 level. (not sure if it makes any difference)

I'm really looking for best practices for this process as everything I read online seems to be solutions mostly for environments that use Windows Servers for their DHCP.


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