Hi On 8 Dec 2013 17:03, "Seth Arnold" <<a href="mailto:seth.arnold@canonical.com">seth.arnold@canonical.com</a>> 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. > > Thanks > > -- > ubuntu-devel mailing list > <a href="mailto:ubuntu-devel@lists.ubuntu.com">ubuntu-devel@lists.ubuntu.com</a> > Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel">https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel</a> > 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. -- ritz