----- Original Message ----- From: "Adam King" <kinga@sghs.org.uk> To: "Gary Hook" <garyrhook@gmail.com> Sent: Friday, September 12, 2014 1:39:38 PM Subject: Re: [libvirt-users] ntpd in VM ----- Original Message ----- From: "Gary Hook" <garyrhook@gmail.com> To: libvirt-users@redhat.com Sent: Friday, September 12, 2014 1:25:47 PM Subject: Re: [libvirt-users] ntpd in VM While I agree that running a time server in a VM is, at best, problematic, most of those nay-sayers have experience with VMware, xen and the like. Those aren't the only hypervisors out there, and the decision process should depend upon the hypervisor (to a significant degree), not just the idea of "can I do this in a VM?" Not all hypervisors are created equally. On Fri, Sep 12, 2014 at 7:14 AM, Pierre Schweitzer < pierre@reactos.org > wrote: Hi, It is still a bad idea. I invite you to read here for the reasons why: http://serverfault.com/a/106509/150152 Cheers, On 09/12/2014 12:51 PM, Mauricio Tavares wrote:

I was taught in kitty school that running a ntp server in a vm was a bad idea. Is that still the case?

My experience is somewhat different. VMWare has always been problematic with this, especially Linux guests. I've run KVM based NTP servers inside vm's (2 as active:standby) and dozens of ntp clients inside vm's for over a year now and seen no adverse results. Admittedly I've not been checking the drift but I can vouch for the results. Regards Adam King <blockquote> </blockquote>