svn commit: r314946 - head/usr.sbin/ntp
Cy Schubert
cy at FreeBSD.org
Thu Mar 9 05:29:25 UTC 2017
Author: cy
Date: Thu Mar 9 05:29:24 2017
New Revision: 314946
URL: https://svnweb.freebsd.org/changeset/base/314946
Log:
Configure leap-second smearing (always).
Leap-second smearing is an experimental option that may be specified in
ntp.conf(5) and the -x option on the command line to spread the effect
of a leap-second over an interval as specified by the leapsmearinterval
config file statement. Recommended values are between 7200 (2 hours) and
86400 (24 hours).
It is advised that leap-second smearing not be used for public NTP
servers (https://www.meinbergglobal.com/download/burnicki/Leap\
%20Second%20Smearing%20With%20NTP.pdf). It is also advised that NTP
clients not use a mix of NTP servers using leap-second smearing with
NTP servers not using leap-second smearing as that could cause
undefined client behaviour.
Leap-second smearing was committed to ports net/ntp and net/ntp-devel
by r426825 on 2016-11-22.
Suggested by: des
MFC after: 4 weeks
Modified:
head/usr.sbin/ntp/config.h
Modified: head/usr.sbin/ntp/config.h
==============================================================================
--- head/usr.sbin/ntp/config.h Thu Mar 9 05:13:07 2017 (r314945)
+++ head/usr.sbin/ntp/config.h Thu Mar 9 05:29:24 2017 (r314946)
@@ -1336,7 +1336,7 @@
#define LDAP_API_FEATURE_X_OPENLDAP_THREAD_SAFE 1
/* leap smear mechanism */
-/* #undef LEAP_SMEAR */
+#define LEAP_SMEAR 1
/* Define to any value to include libseccomp sandboxing. */
/* #undef LIBSECCOMP */
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