DNS - use Internal or External (performance)
Posted on 2016-10-14
Can someone help me gauge whether or not its best to use internal DNS servers or use say the ISP DNS servers?
We are using internal, 4x DCs with DNS on over two sites recently performance of internet has dropped. Not sure if this is o365 related or not either, however when a DC goes offline it causes much issue and takes a lot of time for logons to work etc.
Wondered if pointing DNS externally will help with the above or anything else?