From 523701edcefe5f87c36e7ff85a06e19cff1084a7 Mon Sep 17 00:00:00 2001 From: Cy Schubert Date: Thu, 6 Apr 2017 06:11:04 +0000 Subject: [PATCH] MFC r314946: 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 --- usr.sbin/ntp/config.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/usr.sbin/ntp/config.h b/usr.sbin/ntp/config.h index baaeff4ea7b2..3cc4dbd031ad 100644 --- a/usr.sbin/ntp/config.h +++ b/usr.sbin/ntp/config.h @@ -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 */