On Thu, Jun 21, 2012 at 4:01 AM, ZHOU.Jun <dimotion.z...@gmail.com> wrote: > 在 2012年6月20日星期三UTC+8下午9时00分31秒，ZHOU.Jun写道： >> 在 2012年6月20日星期三UTC+8下午1时42分04秒，Dave Hart写道： >> > On Wed, Jun 20, 2012 at 4:30 AM, ZHOU.Jun wrote: >> > > I need to do some tests with ntpd and I want to have NTP packets set Leap >> > > indicator in order to insert a leap second to a Linux server running ntp >> > > client. >> > > >> > > How can I configure the server to generate a packet with Leap indicator >> > > 0x01? >> > >> > Install the "leapfile" informing ntpd of the leap second to be >> > inserted at the end of this month: >> > >> > http://support.ntp.org/bin/view/Support/ConfiguringNTP#Section_6.14. >> > >> > Set the clock to the last day of this month -- verify with "date -u" >> > which will show the UTC time. The insertion happens at the start of >> > July 1 UTC. >> > >> > Cheers, >> > Dave Hart >> >> Hi Hart >> Thanks for your information. >> I will follow your method. > > Hello Hart, > I found that my ntp version is 3-5.93e which is before 4.2.6 > So I should use the method 6.14.2. NTP Versions before 4.2.6 right? > If I am right, then from the description, I think I need to copy this leap > second file to crypto directory. So could you tell me where is the crypto > directory? > Thanks in advance. > The leap second file must be copied to the crypto directory configured for > ntpd, and inside that directory a link must be created which points to that > file. The standard name for the link is ntpkey_leap. However, this can be > overridden by a configuration parameter.
This won't work for you -- your version is too old to have the autokey-based leap second file support -- so there is no way to use a leapfile with 3-5.93e. http://doc.ntp.org/3-5.93e/miscopt.html suggests you can set the leapwarning variable to 01 (or 1, presumably) to warn of an insertion at the end of the current day. I suspect that requires an authenticated ntpdc operation, but I really don't know. You'll have to experiment, or use a newer version of ntpd. Cheers, Dave Hart _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
