On 8 Dec 2013 17:03, "Seth Arnold" <[email protected]> wrote:
> On Thu, Dec 05, 2013 at 05:15:41PM -0600, C de-Avillez wrote:
> > Although I am probably hammering a rather cold iron, I still fail to
> > understand why ntp is not installed by default. I would expect precise
> > timekeeping to be something important on a server (instead of allowing
> > the time to drift slowly).
> I would like to hear from An Expert if ntpd, ntpdate, ptpd, etc., are
> reasonable things to install in virtual machine guest environments.
> My personal suspicion is that when a virtual machine host runs ntpd,
> guests should not run ntpd, since two daemons attempting to skew the
> clock sounds like a recipe for highly chaotic behavior. ntpdate would
> be alright since it does not attempt to manage clock skew. ptpd no idea.
> When the virtual machine host does not run ntpd, I suspect ntpd, ntpdate,
> ptpd, are all fine things to run in the guests.
> I'd love to know for certain what the best practices are. It might
> influence the default package installs.
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I have seen a few cases where VMs had clock skew due drift. Imho, It is advisable to leave this in based off the support requests I have seen in past few years.