JJY Receivers
+Last update: +- 15-May-2015 00:00 ++ 08-May-2016 00:00 + UTC ENGLISH JAPANESE
++
Synopsis
+@@ -136,7 +136,7 @@ +{ENQ}1J{ETX}{STX}JYYMMDD HHMMSSS{ETX}{STX}JYYMMDDWHHMMSSS{ETX}+--- contrib/ntp/html/miscopt.html.orig ++++ contrib/ntp/html/miscopt.html +@@ -11,7 +11,7 @@ +
from Pogo, Walt Kelly
+ We have three, now looking for more.
+Last update: +- 17-May-2016 06:26 ++ 9-Nov-2016 12:26 + UTC
++
Related Links
+@@ -145,10 +145,12 @@ +-
++
- bcpollbstep poll-gate ++
- This option will cause the client to delay believing backward time steps from a broadcast server for bcpollbstep poll intervals. NTP Broadcast networks are expected to be trusted, and if the server's time gets stepped backwards then it's desireable that the clients follow this change as soon as possible. However, in spite of various protections built-in to the broadcast protocol, it is possible that an attacker could perform a carefully-constructed replay attack and cause clients to erroneously step their clocks backward. If the risk of a successful broadcast replay attack is greater than the risk of the clients being out of sync in the event that there is a backward step on the broadcast time servers, this option may be used to cause the clients to delay beliveving backward time steps until poll-gate consecutive polls have been received. The default is 0, which means the client will accept these steps upon receipt. Any value from 0 to 4 can be specified. +
- beacon beacon +
- The manycast server sends packets at intervals of 64 s if less than maxclock servers are available. Otherwise, it sends packets at the beacon interval in seconds. The default is 3600 s. See the Automatic Server Discovery page for further details. +
- ceiling ceiling +--- contrib/ntp/include/Makefile.am.orig ++++ contrib/ntp/include/Makefile.am +@@ -16,6 +16,7 @@ + intreswork.h \ + iosignal.h \ + l_stdlib.h \ ++ libssl_compat.h \ + lib_strbuf.h \ + libntp.h \ + mbg_gps166.h \ +--- contrib/ntp/include/Makefile.in.orig ++++ contrib/ntp/include/Makefile.in +@@ -501,6 +501,7 @@ + intreswork.h \ + iosignal.h \ + l_stdlib.h \ ++ libssl_compat.h \ + lib_strbuf.h \ + libntp.h \ + mbg_gps166.h \ +--- contrib/ntp/include/libssl_compat.h.orig ++++ contrib/ntp/include/libssl_compat.h +@@ -0,0 +1,100 @@ ++/* ++ * libssl_compat.h -- OpenSSL v1.1 compatibility shims ++ * ++ * --------------------------------------------------------------------- ++ * ++ * Written by Juergen Perlinger
tos[bcpollbstepgate]- This command provides a way to delay,
++by the specified number of broadcast poll intervals,
++believing backward time steps from a broadcast server.
++Broadcast time networks are expected to be trusted.
++In the event a broadcast server's time is stepped backwards,
++there is clear benefit to having the clients notice this change
++as soon as possible.
++Attacks such as replay attacks can happen, however,
++and even though there are a number of protections built in to
++broadcast mode, attempts to perform a replay attack are possible.
++This value defaults to 0, but can be changed
++to any number of poll intervals between 0 and 4.
++
+
Manycast Options
+ +--
++
tos[ceilingceiling| cohort { 0 | 1 } | floorfloor| minclockminclock| minsaneminsane]- This command affects the clock selection and clustering
+ algorithms.
+ It can be used to select the quality and
+@@ -1936,7 +1952,7 @@
+ and is most useful in manycast mode.
+ The variables operate
+ as follows:
+-
-
++
ceilingceiling- Peers with strata above
+
ceiling+ will be discarded if there are at least +@@ -1978,7 +1994,7 @@ + should be at least 4 in order to detect and discard + a single falseticker. + ttlhop ...- This command specifies a list of TTL values in increasing
++
ttlhop ...- This command specifies a list of TTL values in increasing + order, up to 8 values can be specified. + In manycast mode these values are used in turn + in an expanding-ring search. +@@ -1985,7 +2001,7 @@ + The default is eight + multiples of 32 starting at 31. +
-
+
+++
+ +
+@@ -1993,7 +2009,7 @@ + +Reference Clock Support
+ +-The NTP Version 4 daemon supports some three dozen different radio, ++
The NTP Version 4 daemon supports some three dozen different radio, + satellite and modem reference clocks plus a special pseudo-clock + used for backup or when no other clock source is available. + Detailed descriptions of individual device drivers and options can +@@ -2030,7 +2046,7 @@ + provided in + /usr/share/doc/ntp). + +-
A reference clock will generally (though not always) be a radio ++
A reference clock will generally (though not always) be a radio + timecode receiver which is synchronized to a source of standard + time such as the services offered by the NRC in Canada and NIST and + USNO in the US. +@@ -2046,7 +2062,7 @@ + in a scalding remark to the system log file, but is otherwise non + hazardous. + +-
For the purposes of configuration, ++
For the purposes of configuration, +
ntpd(1ntpdmdoc)+ treats + reference clocks in a manner analogous to normal NTP peers as much +@@ -2067,7 +2083,7 @@ + sometimes useful to configure multiple reference clocks of the same + type, in which case the unit numbers must be unique. + +-The ++
The +
server+ command is used to configure a reference + clock, where the +@@ -2105,7 +2121,7 @@ + See the individual clock + driver document pages for additional information. + +-The ++
The +
fudge+ command is used to provide additional + information for individual clock drivers and normally follows +@@ -2127,7 +2143,7 @@ +fudge+ command as well. + +-The stratum number of a reference clock is by default zero. ++
The stratum number of a reference clock is by default zero. + Since the +
ntpd(1ntpdmdoc)+ daemon adds one to the stratum of each +@@ -2150,11 +2166,11 @@ + +Reference Clock Commands
+ +--
++
server127.127.t.u[prefer][modeint][minpollint][maxpollint]- This command can be used to configure reference clocks in
+ special ways.
+ The options are interpreted as follows:
+-
-
++
prefer- Marks the reference clock as preferred. + All other things being + equal, this host will be chosen for synchronization among a set of +@@ -2187,7 +2203,7 @@ + defaults to 14 (4.5 h). + The allowable range is 4 (16 s) to 17 (36.4 h) inclusive. +
fudge127.127.t.u[time1sec][time2sec][stratumint][refidstring][modeint][flag1 0 | 1][flag2 0 | 1][flag3 0 | 1][flag4 0 | 1]- This command can be used to configure reference clocks in
++
fudge127.127.t.u[time1sec][time2sec][stratumint][refidstring][modeint][flag1 0 | 1][flag2 0 | 1][flag3 0 | 1][flag4 0 | 1]- This command can be used to configure reference clocks in
+ special ways.
+ It must immediately follow the
+
server+@@ -2198,7 +2214,7 @@ + program. + The options are interpreted as + follows: +--
++
time1sec- Specifies a constant to be added to the time offset produced by + the driver, a fixed-point decimal number in seconds. + This is used +@@ -2269,8 +2285,8 @@ + command can be found in + Monitoring Options. +
-
+
++ +++
+ +
+@@ -2278,7 +2294,7 @@ + +Miscellaneous Options
+ +--
++
broadcastdelayseconds- The broadcast and multicast modes require a special calibration
+ to determine the network delay between the local and remote
+ servers.
+@@ -2311,7 +2327,7 @@
+ If this command is not given, the daemon will always start with an initial
+ frequency of zero.
+
+-
The file format consists of a single line containing a single ++
The file format consists of a single line containing a single + floating point number, which records the frequency offset measured + in parts-per-million (PPM). + The file is updated by first writing +@@ -2331,7 +2347,7 @@ + can be controlled remotely using the +
ntpdc(1ntpdcmdoc)+ utility program. +--
++
auth- Enables the server to synchronize with unconfigured peers only if the
+ peer has been correctly authenticated using either public key or
+ private key cryptography.
+@@ -2466,7 +2482,7 @@
+ default for this flag is
+
enable. + includefileincludefile- This command allows additional configuration commands
++
includefileincludefile- This command allows additional configuration commands
+ to be included from a separate file.
+ Include files may
+ be nested to a depth of five; upon reaching the end of any
+@@ -2527,7 +2543,7 @@
+ status messages
+ (
status). + +-Configuration keywords are formed by concatenating the message class with ++
Configuration keywords are formed by concatenating the message class with + the event class. + The +
all+@@ -2539,20 +2555,20 @@ + messages of the respective message class. + Thus, a minimal log configuration + could look like this: +-+- logconfig =syncstatus +sysevents +-
++++ logconfig =syncstatus +sysevents ++
+ +-This would just list the synchronizations state of ++
This would just list the synchronizations state of +
ntpd(1ntpdmdoc)+ and the major system events. + For a simple reference server, the + following minimum message configuration could be useful: +-+- logconfig =syncall +clockall +-
++++ logconfig =syncall +clockall ++
+ +-This configuration will list all clock information and ++
This configuration will list all clock information and + synchronization information. + All other events and messages about + peers, system events and so on is suppressed. +@@ -2611,8 +2627,8 @@ + Emphasis added: twisters are on their own and can expect + no help from the support group. + +-
The variables operate as follows: +-
-
++
allanallan- The argument becomes the new value for the minimum Allan + intercept, which is a parameter of the PLL/FLL clock discipline + algorithm. +@@ -2661,8 +2677,8 @@ + If set to zero, the stepout + pulses will not be suppressed. +
rlimit[memlockNmegabytes| stacksizeN4kPagesfilenumNfiledescriptors]-
+-
-
++
rlimit[memlockNmegabytes| stacksizeN4kPagesfilenumNfiledescriptors]-
++
-
+
memlockNmegabytes- Specify the number of megabytes of memory that should be
+ allocated and locked.
+ Probably only available under Linux, this option may be useful
+@@ -2679,7 +2695,7 @@
+
filenumNfiledescriptors- Specifies the maximum number of file descriptors ntpd may have open at once. + Defaults to the system default. +
traphost_address[portport_number][interfaceinterface_address]- This command configures a trap receiver at the given host
++
traphost_address[portport_number][interfaceinterface_address]- This command configures a trap receiver at the given host
+ address and port number for sending messages with the specified
+ local interface address.
+ If the port number is unspecified, a value
+@@ -2690,7 +2706,7 @@
+ Note that on a multihomed host the
+ interface used may vary from time to time with routing changes.
+
+-
The trap receiver will generally log event messages and other ++
The trap receiver will generally log event messages and other + information from the server in a log file. + While such monitor + programs may also request their own trap dynamically, configuring a +@@ -2704,11 +2720,11 @@ + 31. +
This section was generated by AutoGen, ++
This section was generated by AutoGen, + using the
agtexi-cmdtemplate and the option descriptions for thentp.confprogram. + This software is released under the NTP license, <http://ntp.org/license>. + +-
The variables operate as follows: ++
-
+
-
+
-
+
-
+
-
+
-
+
This document describes the configuration file for the NTP Project's
+ ntpd program.
+
+-
This document applies to version 4.2.8p8 of ntp.conf.
++
This document applies to version 4.2.8p9 of ntp.conf.
+
+-
++
+
Short Contents
+-
+ NTP's Configuration File User Manual
+@@ -1926,9 +1926,25 @@
+ the expanding ring shrinks to the minimum and increments
+ from there while collecting all servers in scope.
+
++
Broadcast Options
++ ++-
++