I have been given the task of fixing out DNS server... I need to promote this DC to a new server so I want to fix everything first. I am learning as I go along...
First question I have is based on the image attached. There are duplicate Host entries pointing to a single IP address. Some of the Host entries do not even exist anymore.
I am not sure if the last person set this up manually or dynamic. I'm wondering if this could cause problems and how to fix it. I was also wondering if there is a Support Tool I can use to automatically fix DNS entries or tell me what needs to be fixed before I start the DC promotion process.