767173cec2
Update 4.2.8p14 --> 4.2.8p15 Summary: Systems that use a CMAC algorithm in ntp.keys will not release a bit of memory on each packet that uses a CMAC keyid, eventually causing ntpd to run out of memory and fail. The CMAC cleanup from https://bugs.ntp.org/3447, part of ntp-4.2.8p11, introduced a bug whereby the CMAC data structure was no longer completely removed. MFC after: 3 days Security: NTP Bug 3661
109 lines
3.1 KiB
Groff
109 lines
3.1 KiB
Groff
.de1 NOP
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. it 1 an-trap
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. if \\n[.$] \,\\$*\/
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.ie t \
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.ds B-Font [CB]
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.ds I-Font [CI]
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.ds R-Font [CR]
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.el \
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.ds B-Font B
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.TH calc_tickadj 1calc_tickadjman "23 Jun 2020" "ntp (4.2.8p15)" "User Commands"
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.\"
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.\" EDIT THIS FILE WITH CAUTION (in-mem file)
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.\"
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.\" It has been AutoGen-ed June 23, 2020 at 02:21:27 AM by AutoGen 5.18.5
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.\" From the definitions calc_tickadj-opts.def
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.\" and the template file agman-cmd.tpl
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.SH NAME
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\f\*[B-Font]calc_tickadj\fP
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\- Calculates optimal value for tick given ntp drift file.
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.SH SYNOPSIS
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\f\*[B-Font]calc_tickadj\fP
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.\" Mixture of short (flag) options and long options
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[\f\*[B-Font]\-flags\f[]]
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[\f\*[B-Font]\-flag\f[] [\f\*[I-Font]value\f[]]]
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[\f\*[B-Font]\-\-option-name\f[][[=| ]\f\*[I-Font]value\f[]]]
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.sp \n(Ppu
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.ne 2
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All arguments must be options.
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.sp \n(Ppu
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.ne 2
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.SH DESCRIPTION
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The \fBcalc_tickadj\fP script uses provided ntp drift file to generate optimal
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tick value. Generally, ntpd can do better job if the drift value is the
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smallest possible number.
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.sp
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The example output of
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.br
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.in +4
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.nf
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$ ./calc_tickadj
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81.699 (drift)
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9999 usec; 9999779 nsec
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$ cat /etc/ntp/drift
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-23.159
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.in -4
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.fi
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.sp
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means the following. If tick on that box is 10,000, by making the value 9999
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we'll shift the box from its current drift of \-23.159 to a drift of 81.699, and
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in doing so we'll speed the clock up a little every second instead of slowing
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the clock down a little.
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.sp
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If 'tick' on that box is 10,000,000 then by setting it to 9999779 the drift
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value will be somewhere around 0.0.
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.sp
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\fBcalc_tickadj\fP tries to determine the the tick value by using
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\fBtickadj\fP program from ntp package. If this doesn't work you can specify
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current tick manually on command line.
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.SH "OPTIONS"
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.TP
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.NOP \f\*[B-Font]\-d\f[] \f\*[I-Font]string\f[], \f\*[B-Font]\-\-drift\-file\f[]=\f\*[I-Font]string\f[]
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Ntp drift file to use.
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The default
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\f\*[I-Font]string\f[]
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for this option is:
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.ti +4
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/etc/ntp/drift
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.sp
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Use the specified drift file for calculations
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.TP
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.NOP \f\*[B-Font]\-t\f[] \f\*[I-Font]number\f[], \f\*[B-Font]\-\-tick\f[]=\f\*[I-Font]number\f[]
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Tick value of this host.
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This option takes an integer number as its argument.
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.sp
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The current tick which to adjustment will be calculated
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.TP
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.NOP \f\*[B-Font]\-\&?\f[], \f\*[B-Font]\-\-help\f[]
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Display usage information and exit.
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.TP
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.NOP \f\*[B-Font]\-\&!\f[], \f\*[B-Font]\-\-more-help\f[]
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Pass the extended usage information through a pager.
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.TP
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.NOP \f\*[B-Font]\-v\f[] [{\f\*[I-Font]v|c|n\f[] \f\*[B-Font]\-\-version\f[] [{\f\*[I-Font]v|c|n\f[]}]}]
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Output version of program and exit. The default mode is `v', a simple
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version. The `c' mode will print copyright information and `n' will
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print the full copyright notice.
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.PP
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.SH "EXIT STATUS"
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One of the following exit values will be returned:
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.TP
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.NOP 0 " (EXIT_SUCCESS)"
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Successful program execution.
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.TP
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.NOP 1 " (EXIT_FAILURE)"
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The operation failed or the command syntax was not valid.
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.TP
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.NOP 70 " (EX_SOFTWARE)"
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libopts had an internal operational error. Please report
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it to autogen-users@lists.sourceforge.net. Thank you.
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.PP
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.SH "NOTES"
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This manual page was \fIAutoGen\fP-erated from the \fBcalc_tickadj\fP
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option definitions.
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