I have one on-prem vm, with adfs role installed. On this vm i have already configured azure ad connect, with public ssl installed. ADFS use mssql db. Sync and authorization in office 365 on this adfs server works fine. I want to add another adfs server. How should i add it, just from server manager, just choose "add to existing farm"? Or i should full reconfigure sync in "azure ad connect"?
Is that possible, to use cluster adfs without wap?
And should i have one external ip for this two nodes, or it possible to use dns round robin?