I was taught in kitty school that running a ntp server in a vm was a bad idea. Is that still the case?
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? > > _______________________________________________ > libvirt-users mailing list > libvirt-users@redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users-- Pierre Schweitzer <pierre@reactos.org> System & Network Administrator Senior Kernel Developer ReactOS Deutschland e.V.
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? > > > > _______________________________________________ > > libvirt-users mailing list > > libvirt-users@redhat.com > > https://www.redhat.com/mailman/listinfo/libvirt-users > > > -- > Pierre Schweitzer <pierre@reactos.org> > System & Network Administrator > Senior Kernel Developer > ReactOS Deutschland e.V. > > > > _______________________________________________ > libvirt-users mailing list > libvirt-users@redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users >
----- 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>