Date: Mon, 16 May 2016 19:19:16 +0100 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: ntpd leap-seconds-list file not documented Message-ID: <20160516191916.3b088d21@gumby.homeunix.com> In-Reply-To: <5739C499.9000105@gmail.com> References: <5739C499.9000105@gmail.com>
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On Mon, 16 May 2016 09:01:13 -0400 Ernie Luzar wrote: > The 10.3 version of ntpd that is included in the base release has > manual pages that do not mention anything about the > /var/db/ntpd.leap-seconds.list file > > or the > > daily_ntpd_leapfile_enable="YES" > daily_ntpd_avoid_congestion="YES" > options in /etc/periodic.conf > This kind of thing is often not documented in man pages, but it seems fairly well documented in the relevant files, see below. The only confusing thing is daily_ntpd_avoid_congestion, which needs to be set to NO if the machine doesn't run 24/7. from ntp.conf # See http://support.ntp.org/bin/view/Support/ConfiguringNTP#Section_6.14. # for documentation regarding leapfile. Updates to the file can be obtained # from ftp://time.nist.gov/pub/ or ftp://tycho.usno.navy.mil/pub/ntp/. # Use either leapfile in /etc/ntp or weekly updated leapfile in /var/db. #leapfile "/etc/ntp/leap-seconds" leapfile "/var/db/ntpd.leap-seconds.list" from defaults/rc.conf ntp_src_leapfile="/etc/ntp/leap-seconds" # Initial source for ntpd leapfile ntp_db_leapfile="/var/db/ntpd.leap-seconds.list" # Working copy (updated weekly) leapfile ntp_leapfile_sources="https://www.ietf.org/timezones/data/leap-seconds.list" # Source from which to fetch leapfile ntp_leapfile_fetch_opts="-mq" # Options to use for ntp leapfile fetch, # e.g. --no-verify-peer ntp_leapfile_expiry_days=30 # Check for new leapfile 30 days prior to # expiry. ntp_leapfile_fetch_verbose="NO" # Be verbose during NTP leapfile fetch from defaults/periodic.conf daily_ntpd_leapfile_enable="NO" # Fetch NTP leapfile daily_ntpd_avoid_congestion="YES" # Avoid congesting # leapfile sources
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