Lines Matching +full:ref +full:- +full:clock +full:- +full:period +full:- +full:ns
7 # EDIT THIS FILE WITH CAUTION (invoke-ntp.conf.texi)
9 # It has been AutoGen-ed May 25, 2024 at 12:03:56 AM by AutoGen 5.18.16
11 # and the template file agtexi-file.tpl
27 @code{-c}
42 host addresses written in numeric, dotted-quad form,
55 @ref{Configuration Options},
60 @ref{Authentication Support}
62 @ref{Monitoring Support}
64 @ref{Access Control Support}
66 @ref{Automatic NTP Configuration Options}
68 @ref{Reference Clock Support}
70 @ref{Miscellaneous Options}
74 @ref{Miscellaneous Options}.
93 clock, and auxiliary commands that specify environmental variables
101 class D), or (r) a reference clock address (127.127.x.x).
108 If the Basic Socket Interface Extensions for IPv6 (RFC-2553)
124 with the exception of reference clock addresses,
128 @code{-4}
132 @code{-6}
149 either a DNS name or an IP address in dotted-quad notation.
160 In this mode the local clock can synchronized to the
162 the local clock.
166 radio clock.
167 In this mode the local clock can synchronized to the
169 the local clock.
176 persistent symmetric-active mode association with the specified
178 In this mode the local clock can be synchronized to
180 clock.
252 @ref{Authentication Options}.
269 @code{-q}
317 It specifies the time-to-live
330 Versions 1-4 are the choices, with version 4 the
358 server and client should operate using symmetric-key or public-key
360 @ref{Authentication Options}.
371 and client should operate using symmetric-key or public-key
373 @ref{Authentication Options}.
384 both the server and client should operate using symmetric-key or
385 public-key authentication as described in
386 @ref{Authentication Options}.
408 specification RFC-1305 defines a scheme which provides
413 DES-CBC.
415 5 (MD5) algorithm using a private key, commonly called keyed-MD5.
416 Either algorithm computes a message digest, or one-way hash, which
454 @ref{Configuration Options}
520 @ref{Automatic NTP Configuration Options}
537 @subsubsection Symmetric-Key Cryptography
538 The original RFC-1305 specification allows any one of possibly
539 65,535 keys, each distinguished by a 32-bit key identifier, to
587 described in RFC-1305 and in addition the Autokey protocol,
605 All modes use in addition a variant of the S-KEY scheme,
606 in which a pseudo-random key list is generated and used
610 @ref{Autonomous Authentication}
616 @code{ntp-keygen(1ntpkeygenmdoc)}
746 Bob sends Cathy a thing called a crypto-NAK, which tells her
770 @code{ntp-keygen(1ntpkeygenmdoc)}
818 protocol defined in RFC-1305.
891 @code{-k}
910 Specifies the interval between re-randomization of certain
914 deflect brute-force attacks on the algorithms of the scheme;
934 arguments are 32-bit unsigned
947 This could be due to a replay or a server clock time step.
1019 Enables recording of clock driver statistics information.
1021 received from a clock driver appends a line of the following form to
1031 clock address in dotted-quad notation.
1033 timecode received from the clock in decoded ASCII format, where
1035 In some clock drivers a good deal of additional information
1038 clock for further details.
1053 address in dotted-quad notation, The final message field includes the
1056 @ref{Authentication Options}
1061 update of the local clock outputs a line of the following form to
1071 show time offset (seconds), frequency offset (parts per million -
1072 PPM), RMS jitter (seconds), Allan deviation (PPM) and clock
1084 48773 10847.650 127.127.4.1 9714 -0.001605376 0.000000000 0.001424877 0.000958674
1090 show the peer address in dotted-quad notation and status,
1097 Enables recording of raw-timestamp statistics information.
1102 received from a peer or clock driver appends a line of the
1112 show the remote peer or clock address followed by the local address
1113 in dotted-quad notation.
1206 server, usually specified as a compile-time constant.
1264 defined as the period between 00:00 and 24:00 UTC.
1272 is a 4-digit year number (e.g., 1992).
1284 The term week is defined by computing day-of-year
1288 filename base: A dot, a 4-digit year number, the letter
1290 and a 2-digit week number.
1293 .No . Ns Ar 1992W1 .
1297 file name suffix consists of a dot, a 4-digit year number, and
1298 a 2-digit month.
1309 and an 8-digit number.
1311 running at the start of the corresponding 24-hour period.
1389 for a timed period and others cause the denied service for
1390 an indefinite period.
1392 for an indefinite period, the only way at present to remove
1394 @subsubsection The Kiss-of-Death Packet
1402 for this purpose called the "kiss-of-death" (KoD) packet.
1404 to zero and the reference identifier field set to a four-byte
1444 and a kiss-o'-death packet returned if enabled.
1489 where a value of -1 means "unlimited", the current default.
1504 restrict informational queries and attempts to do run-time
1516 If this flag is set when a rate violation occurs, a kiss-o'-death
1555 to become the default in ntp-4.4.
1640 Remove a previously-set restriction. This is useful for
1668 with the anycast paradigm described in RFC-1546,
1700 and minimum feasible time-to-live (TTL) hops, depending
1727 in burst mode in order to reliably set the host clock
1730 in a volley of eight client/server at 2-s intervals
1743 and the effects of implosion due to near-simultaneous
1783 survivors in order to synchronize the clock.
1911 re-associate accordingly.
1919 @code{-q}
1927 @code{-q}.
1930 the rascals, sets the clock and then departs.
1983 This command affects the clock selection and clustering
1986 quantity of peers used to synchronize the system clock
2025 to the clock selection algorithm in order to produce
2027 If fewer than this number are available, the clock is
2041 in an expanding-ring search.
2045 @node Reference Clock Support
2046 @subsection Reference Clock Support
2048 satellite and modem reference clocks plus a special pseudo-clock
2049 used for backup or when no other clock source is available.
2052 "Reference Clock Drivers"
2059 "Debugging Hints for Reference Clock Drivers"
2061 "How To Write a Reference Clock Driver"
2068 "Pulse-per-second (PPS) Signal Interfacing"
2084 A reference clock will generally (though not always) be a radio
2091 device driver specific to each reference clock must be selected and
2095 configure a reference clock when the driver has not been compiled
2108 Reference clock addresses are of the form
2113 denoting the clock type and
2116 number in the range 0-3.
2124 clock, where the
2127 is the clock address.
2133 options are not used for reference clock support.
2136 option is added for reference clock support, as
2141 persuade the server to cherish a reference clock with somewhat more
2155 meaning only for selected clock drivers.
2156 See the individual clock
2162 information for individual clock drivers and normally follows
2168 argument specifies the clock address.
2176 device-dependent time offsets and four flags that can be included
2181 The stratum number of a reference clock is by default zero.
2188 specify the reference clock stratum as greater than zero.
2193 involving both a reference clock and a pulse-per-second (PPS)
2194 discipline signal, it is useful to specify the reference clock
2200 these options apply to all clock drivers.
2201 @subsubsection Reference Clock Commands
2209 Marks the reference clock as preferred.
2222 device-specific fashion.
2230 for reference clock messages, as a power of 2 in seconds
2259 the driver, a fixed-point decimal number in seconds.
2262 particular clock to agree with an external standard, such as a
2274 radio clock or PPS signal is supported, a special calibration
2279 @ref{Miscellaneous Options}
2281 "Reference Clock Drivers"
2287 Specifies a fixed-point decimal number in seconds, which is
2288 interpreted in a driver-dependent way.
2291 "Reference Clock Drivers"
2309 device-specific fashion.
2318 These four flags are used for customizing the clock driver.
2321 is a function of the particular clock driver.
2334 @ref{Monitoring Options}.
2357 record the frequency of the local clock oscillator.
2360 @code{-f}
2373 in parts-per-million (PPM).
2384 a 6-bit code.
2422 Enables processing of NTP mode 7 implementation-specific requests
2456 receives a crypto-NAK packet that
2461 a properly forged and appropriately delivered crypto-NAK packet
2475 @ref{Monitoring Options}
2504 receives a crypto-NAK packet that
2509 a properly forged and appropriately delivered crypto-NAK packet
2578 @code{-I},
2579 @code{--interface},
2580 @code{-L},
2582 @code{--novirtualips}
2583 command-line options are specified in the configuration file,
2594 @code{https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list}
2596 @code{ftp://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list}.
2611 @code{update-leap(1update_leapmdoc)}
2619 @code{--enable-leap-smear}
2626 .Sy DO NOT USE THIS OPTION ON PUBLIC-ACCESS SERVERS!
2642 @quoteleft{}-@quoteright{},
2650 @quoteleft{}-@quoteright{}
2656 (@code{clock}, @code{peer}, @code{sys} and @code{sync}).
2693 This configuration will list all clock information and
2703 @code{-l}
2759 (frequency file) will be written, with a default value of 1e-7 (0.1 PPM).
2771 or the JJY driver (type 40, mode 100 - 180).
2775 For the JJY driver (type 40 mode 100 - 180), the argument is
2788 The next two numbers must be between 0 and one-half of the poll interval,
2810 @code{-i}
2812 The default is 32 megabytes on non-Linux machines, and -1 under Linux.
2813 -1 means "do not lock the process into memory".
2841 @code{config-from-file}
2858 @code{saveconfig\ ntp-%Y%m%d-%H%M%S.conf}.
2893 holds the names of the reference clock variables.
2920 intercept, which is a parameter of the PLL/FLL clock discipline
2929 parts-per-million.
2934 huff-n'-puff filter span, which determines the most recent interval
2944 the panic sanity check is disabled and a clock offset of any value will
3003 mode these values are used in-turn in an expanding-ring search.
3016 an expanding-ring search.
3022 using the @code{agtexi-cmd} template and the option descriptions for the @code{ntp.conf} program.
3044 Diffie-Hellman agreement parameters