65 lines
1.9 KiB
Plaintext
65 lines
1.9 KiB
Plaintext
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# Welcome to the chrony configuration file. See chrony.conf(5) for more
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# information about usable directives.
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# Use Debian vendor zone.
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#pool 2.debian.pool.ntp.org iburst
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# Use time sources from DHCP.
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sourcedir /run/chrony-dhcp
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# Use NTP sources found in /etc/chrony/sources.d.
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sourcedir /etc/chrony/sources.d
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# This directive specifies the location of the file containing ID/key pairs for
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# NTP authentication.
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keyfile /etc/chrony/chrony.keys
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# This directive specifies the file into which chronyd will store the rate
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# information.
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driftfile /var/lib/chrony/chrony.drift
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# Save NTS keys and cookies.
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ntsdumpdir /var/lib/chrony
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# Uncomment the following line to turn logging on.
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#log tracking measurements statistics
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# Log files location.
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logdir /var/log/chrony
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# Stop bad estimates upsetting machine clock.
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maxupdateskew 100.0
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# This directive enables kernel synchronisation (every 11 minutes) of the
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# real-time clock. Note that it can't be used along with the 'rtcfile' directive.
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rtcsync
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# Step the system clock instead of slewing it if the adjustment is larger than
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# one second, but only in the first three clock updates.
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makestep 1 3
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# Get TAI-UTC offset and leap seconds from the system tz database.
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# This directive must be commented out when using time sources serving
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# leap-smeared time.
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leapseclist /usr/share/zoneinfo/leap-seconds.list
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# Include configuration files found in /etc/chrony/conf.d.
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#confdir /etc/chrony/conf.d
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# ACL
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# I have set it to RFC1918 because I'm using my firewall to explicitly allow access to NTP server
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allow 192.168.0.0/16
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allow 10.0.0.0/8
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allow 172.16.0.0/12
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# Explicitly tell clients that we are stratum 1
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local stratum 1
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# Onboard GPS clock
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#refclock SHM 0 refid NMEA offset 0.000 precision 1e-3 poll 3 noselect
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refclock SHM 0 refid NMEA offset 0.125 precision 1e-3 poll 3 noselect
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refclock PPS /dev/pps0 refid PPS lock NMEA poll 3
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