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-@node sntp Invocation
-@section Invoking sntp
-@pindex sntp
-@cindex standard Simple Network Time Protocol program
-@ignore
-#
-# EDIT THIS FILE WITH CAUTION (sntp-opts.texi)
-#
-# It has been AutoGen-ed December 24, 2011 at 06:34:00 PM by AutoGen 5.12
-# From the definitions sntp-opts.def
-# and the template file aginfo.tpl
-@end ignore
-
-@code{sntp}
-can be used as a SNTP client to query a NTP or SNTP server and either display
-the time or set the local system's time (given suitable privilege). It can be
-run as an interactive command or in a
-@code{cron}
-job.
-
-NTP (the Network Time Protocol) and SNTP (the Simple Network Time Protocol)
-are defined and described by RFC 5905.
-
-@indent
-The default is to write the estimated correct local date and time (i.e. not
-UTC) to the standard output in a format like
-@example
-1996-10-15 20:17:25.123 (+0800) +4.567 +/- 0.089 secs
-@end example
-where the
-@example
-+4.567 +/- 0.089 secs
-@end example
-indicates the local clock is 4.567 seconds behind the correct time
-(so 4.567 seconds must be added to the local clock to get it to be correct),
-and the (local) time of
-@code{1996-10-15 20:17:25.123}
-can be converted to UTC time by adding 8 hours and 0 minutes, and
-is believed to be correct to within
-@code{+/- 0.089}
-seconds.
-
-This section was generated by @strong{AutoGen},
-the aginfo template and the option descriptions for the @command{sntp} program. It documents the @command{sntp} usage text and option meanings.
-
-This software is released under a specialized copyright license.
-
-@menu
-* sntp usage:: sntp usage help (-?)
-* sntp adjtime:: adjtime option (-j)
-* sntp authentication:: authentication option (-a)
-* sntp broadcast:: broadcast option (-b)
-* sntp ipv4:: ipv4 option (-4)
-* sntp ipv6:: ipv6 option (-6)
-* sntp keyfile:: keyfile option (-k)
-* sntp kod:: kod option (-K)
-* sntp logfile:: logfile option (-l)
-* sntp normalverbose:: normalverbose option (-d)
-* sntp settod:: settod option (-s)
-* sntp syslog:: syslog option (-p)
-* sntp timeout:: timeout option (-t)
-@end menu
-
-@node sntp usage
-@subsection sntp usage help (-?)
-@cindex sntp usage
-
-This is the automatically generated usage text for sntp:
-
-@exampleindent 0
-@example
-sntp - standard Simple Network Time Protocol program - Ver. 4.2.6p5
-USAGE: sntp [ -<flag> [<val>] | --<name>[@{=| @}<val>] ]... \
- [ hostname-or-IP ...]
- Flg Arg Option-Name Description
- -4 no ipv4 Force IPv4 DNS name resolution
- - prohibits these options:
- ipv6
- -6 no ipv6 Force IPv6 DNS name resolution
- - prohibits these options:
- ipv4
- -d no normalverbose Normal verbose
- -K Str kod KoD history filename
- -p no syslog Logging with syslog
- - prohibits these options:
- logfile
- -l Str logfile Log to specified logfile
- - prohibits these options:
- syslog
- -s no settod Set (step) the time with settimeofday()
- - prohibits these options:
- adjtime
- -j no adjtime Set (slew) the time with adjtime()
- - prohibits these options:
- settod
- -b Str broadcast Use broadcasts to the address specified for synchronisation
- -t Num timeout Specify the number of seconds to wait for broadcasts
- -a Num authentication Enable authentication with the key auth-keynumber
- -k Str keyfile Specify a keyfile. SNTP will look in this file for the key specified with -a
- opt version Output version information and exit
- -? no help Display extended usage information and exit
- -! no more-help Extended usage information passed thru pager
- -> opt save-opts Save the option state to a config file
- -< Str load-opts Load options from a config file
- - disabled as --no-load-opts
- - may appear multiple times
-
-Options are specified by doubled hyphens and their name or by a single
-hyphen and the flag character.
-
-
-
-The following option preset mechanisms are supported:
- - reading file $HOME/.ntprc
- - reading file ./.ntprc
- - examining environment variables named SNTP_*
-
-sntp implements the Simple Network Time Protocol, and is used to query an
-NTP or SNTP server and either display the time or set the local system's
-time (given suitable privilege).
-
-It can be run interactively from the command line or as a cron job.
-
-NTP and SNTP are defined by RFC 5905, which obsoletes RFC 4330 and RFC
-1305.
-
-please send bug reports to: http://bugs.ntp.org, bugs@@ntp.org
-@end example
-@exampleindent 4
-
-@node sntp adjtime
-@subsection adjtime option (-j)
-@cindex sntp-adjtime
-
-This is the ``set (slew) the time with adjtime()'' option.
-
-This option has some usage constraints. It:
-@itemize @bullet
-@item
-must not appear in combination with any of the following options:
-settod.
-@end itemize
-
-
-
-@node sntp authentication
-@subsection authentication option (-a)
-@cindex sntp-authentication
-
-This is the ``enable authentication with the key auth-keynumber'' option.
-This option enables authentication using the key specified in this option's argument.
-The argument of this option is the keyid, a number specified in the keyfile as this
-key's identifier. See the keyfile option (-k) for more details.
-
-@node sntp broadcast
-@subsection broadcast option (-b)
-@cindex sntp-broadcast
-
-This is the ``use broadcasts to the address specified for synchronisation'' option.
-If specified SNTP will listen to the specified broadcast address
-for NTP broadcasts. The default maximum wait time,
-68 seconds, can be modified with -t.
-
-@node sntp ipv4
-@subsection ipv4 option (-4)
-@cindex sntp-ipv4
-
-This is the ``force ipv4 dns name resolution'' option.
-
-This option has some usage constraints. It:
-@itemize @bullet
-@item
-must not appear in combination with any of the following options:
-ipv6.
-@end itemize
-
-Force DNS resolution of the following host names on the command line
-to the IPv4 namespace.
-
-@node sntp ipv6
-@subsection ipv6 option (-6)
-@cindex sntp-ipv6
-
-This is the ``force ipv6 dns name resolution'' option.
-
-This option has some usage constraints. It:
-@itemize @bullet
-@item
-must not appear in combination with any of the following options:
-ipv4.
-@end itemize
-
-Force DNS resolution of the following host names on the command line
-to the IPv6 namespace.
-
-@node sntp keyfile
-@subsection keyfile option (-k)
-@cindex sntp-keyfile
-
-This is the ``specify a keyfile. sntp will look in this file for the key specified with -a'' option.
-This option specifies the keyfile. SNTP will search for the key specified with -a keyno in this
-file. Key files follow the following format:
-
-keyid keytype key
-
-Where keyid is a number identifying this key
-keytype is one of the follow:
-S Key in 64 Bit hexadecimal number as specified in in the DES specification.
-N Key in 64 Bit hexadecimal number as specified in the NTP standard.
-A Key in a 1-to-8 character ASCII string.
-M Key in a 1-to-8 character ASCII string using the MD5 authentication scheme.
-
-For more information see ntp.keys(5).
-
-@node sntp kod
-@subsection kod option (-K)
-@cindex sntp-kod
-
-This is the ``kod history filename'' option.
-Specifies the filename to be used to persist the history of KoD
-responses received from servers. The default is
-/var/db/ntp-kod.
-
-@node sntp logfile
-@subsection logfile option (-l)
-@cindex sntp-logfile
-
-This is the ``log to specified logfile'' option.
-
-This option has some usage constraints. It:
-@itemize @bullet
-@item
-must not appear in combination with any of the following options:
-syslog.
-@end itemize
-
-This option causes the client to write log messages to the specified
-logfile.
-
-@node sntp normalverbose
-@subsection normalverbose option (-d)
-@cindex sntp-normalverbose
-
-This is the ``normal verbose'' option.
-Diagnostic messages for non-fatal errors and a limited amount of
-tracing should be written to standard error. Fatal ones always
-produce a diagnostic. This option should be set when there is a
-suspected problem with the server, network or the source.
-
-@node sntp settod
-@subsection settod option (-s)
-@cindex sntp-settod
-
-This is the ``set (step) the time with settimeofday()'' option.
-
-This option has some usage constraints. It:
-@itemize @bullet
-@item
-must not appear in combination with any of the following options:
-adjtime.
-@end itemize
-
-
-
-@node sntp syslog
-@subsection syslog option (-p)
-@cindex sntp-syslog
-
-This is the ``logging with syslog'' option.
-
-This option has some usage constraints. It:
-@itemize @bullet
-@item
-must not appear in combination with any of the following options:
-logfile.
-@end itemize
-
-When this option is set all logging will be done using syslog.
-
-@node sntp timeout
-@subsection timeout option (-t)
-@cindex sntp-timeout
-
-This is the ``specify the number of seconds to wait for broadcasts'' option.
-When waiting for a broadcast packet SNTP will wait the number
-of seconds specified before giving up. Default 68 seconds.