VMWare ESX Timekeeping and Active Directory
Some nice articles which explain timekeeping on vmware and how to virtualize Active Directory safely on VMWare time wise.
Time synchronisation on Active Directory is particularly important because of Kerberos, if clocks are more then 5 minutes (Default value) out of sync from the Domain Controller authentication fails. NTP is your friend here.
- Timekeeping in VMWare virtual machines
- TAC 9710 -Virtualizing a Windows Active Directory Domain Infrastructure (From 2006 but still usefull especially the Active Directory related inf0)