| 1 | # This is the default chrony.conf file adapted from Debian |
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| 2 | |
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| 3 | # See www.pool.ntp.org for an explanation of these servers. Please |
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| 4 | # consider joining the project if possible. If you can't or don't want to |
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| 5 | # use these servers I suggest that you try your ISP's nameservers. We mark |
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| 6 | # the servers 'offline' so that chronyd won't try to connect when the link |
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| 7 | # is down. |
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| 8 | # |
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| 9 | # A Helper application, chrony-netchanged, monitors the network state and |
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| 10 | # checks the reachability of the first configured server found in this |
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| 11 | # file. It invokes the script @PREFIX@/etc/chrony/chrony-netchange |
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| 12 | # which uses chronyc commands to switch chronyd on when an internet link |
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| 13 | # comes up and off when it goes down. |
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| 14 | # |
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| 15 | # Note that if Chrony tries to go 'online' and dns lookup of the servers |
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| 16 | # fails they will be discarded. Thus under some circumstances it is |
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| 17 | # better to use IP numbers than host names. |
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| 18 | |
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| 19 | pool pool.ntp.org offline |
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| 20 | |
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| 21 | # The driftfile |
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| 22 | |
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| 23 | driftfile @PREFIX@/var/lib/chrony/chrony.drift |
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| 24 | |
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| 25 | # Comment these lines out to turn off logging. |
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| 26 | |
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| 27 | log tracking measurements statistics |
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| 28 | logdir @PREFIX@/var/log/chrony |
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| 29 | |
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| 30 | # Step system clock if the adjustment is larger than 1.0 seconds, |
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| 31 | # but only in the first three clock updates. |
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| 32 | |
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| 33 | makestep 1.0 3 |
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| 34 | |
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| 35 | # Stop bad estimates upsetting machine clock. |
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| 36 | |
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| 37 | maxupdateskew 100.0 |
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| 38 | |
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| 39 | # Dump measurements when daemon exits. |
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| 40 | |
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| 41 | dumponexit |
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| 42 | |
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| 43 | # Specify directory for dumping measurements. |
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| 44 | |
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| 45 | dumpdir @PREFIX@/var/lib/chrony |
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| 46 | |
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| 47 | # This directive lets 'chronyd' to serve time even if unsynchronised to any |
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| 48 | # NTP server. |
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| 49 | |
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| 50 | #local stratum 10 |
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| 51 | |
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| 52 | # This directive designates subnets (or nodes) from which NTP clients are allowed |
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| 53 | # to access to 'chronyd'. |
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| 54 | |
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| 55 | #allow foo.example.net |
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| 56 | #allow 10/8 |
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| 57 | #allow 0/0 (allow access by any IPv4 node) |
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| 58 | #allow ::/0 (allow access by any IPv6 node) |
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| 59 | |
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| 60 | # This directive forces `chronyd' to send a message to syslog if it |
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| 61 | # makes a system clock adjustment larger than a threshold value in seconds. |
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| 62 | |
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| 63 | logchange 0.5 |
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| 64 | |
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| 65 | # This directive defines an email address to which mail should be sent |
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| 66 | # if chronyd applies a correction exceeding a particular threshold to the |
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| 67 | # system clock. |
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| 68 | |
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| 69 | # mailonchange root@localhost 0.5 |
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