A few questions:
- How would having a separate (non-domain) primary DNS impact on AD authentication? I thought the server used DNS to locate the AD servers to authenticate against?
- If the separate DNS server was not a member of the domain, is there a way to add entries for the AD servers? I'm unsure if you would even be able to add the SolarWinds server to the domain in this scenario (if it was a new server)...
- Would having the AD DNS as a secondary DNS server resolve the above issues (if they were issues)?