On Jun 23, 2015 6:26 AM, "Nick Hilliard" <n...@foobar.org> wrote: >
> > Blocking NTP at the NTP edge will probably work fine for most situations. > Bear in mind that your NTP edge is not necessarily the same as your network > edge. E.g. you might have internal GPS / radio sources which could > unexpectedly inject the leap second. The larger the network, the more > likely this is to happen. Most organisations have network fossils and ntp > is an excellent source of these. I.e. systems which work away for years > without any problems before one day accidentally triggering meltdown > because some developer didn't understand the subtleties of clock monotonicity. > NTP causes jumps - not skews, right?