I have a vcenter 6.0 deployment onto a ESXi 5.5 host which installs using the scripted deployment option i.e. JSON file. This deployment runs through without error however I am having issues with joining the vCenter instance to the AD which is running on my deployment server (Windows Server 2008 R2 Standard). I have been reliably informed this is due to forward/reverse lookup configuration on my deployment server. I know absolutely nothing about forward/reverse lookup zones so can anyone out there help me get to grips with this. For examples sake say my vcenter IP address is 18.104.22.168 how could I go about setting up lookup zones for this and what is this buying me? These will be created prior to the vcenter being installed is this OK?