Vmware ntp not updating
In my short experience, it's not a good idea to use the ESXi NTP to synchronise time for a Windows domain with VM DCs.
tp-time-synchronization-on-a-server 2) Now point that IP address (local IP of Ubuntu box – in same network) to your ESXi servers and see what it comesup with...?If this isn't working for you, you should investigate this further, because setting the time from the Internet won't solve your problem.Your problem description sounds like a bug in VMware or in the Linux kernel.When I log into vsphere client, each server has a different time.Is there a command to force an update from the ntp time server? Could it have something to do with my server's date / time being put in AEST time instead of utc?I have noticed that our VMWare VMs often have the incorrect time on them.
No matter how many times I reset the time they keep on desyncing. What do other people do to keep their VM time in sync? according to VMware's knowledge base, the actual solution depends on the Linux distro and release, in RHEL 5.3 I usually edit /etc/and append this parameters to the kernel entry: divider=10 clocksource=acpi_pm Then enable NTP, disable VMware time synchronization from vmware-toolbox and finally reboot the VM A complete table with guidelines for each Linux distro can be found here: TIMEKEEPING BEST PRACTICES FOR LINUX GUESTS
I'm managing some Virtual Box developer environments.
The time drifts out of sync when the box is suspended, so I want to use NTP to keep it in sync.
Furthermore, installing NTP on a VMware guest is actually a bad idea, at least in certain configurations (which I've encountered, but I don't know how widely applicable my one experience is), because the guest and the host fight to compensate the drift and the guest clock goes haywire as a result.
NTP refuses to follow sudden jumps of the time server: it assumes that if there is a large discrepancy between the local clock and the server (the maximum is 20 min if I remember correctly), this must be due to a network problem or a misconfiguration (e.g. When you restart a suspended image, the system clock detect this (the virtual processor receives a timer interrupt).
As i read esxi runs off utc time, and lets vsphere client convert the time to local date / time.