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2022-01-28 17:59:09 +01:00
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.TH "SNTPC" 1 "2022-01-28" "20181113_1ca1d00" "SlackBuilds.org"
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.SH NAME
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sntpc \- Network Time Protocol client
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.\" RST source for sntpc(8) man page. Convert with:
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.\" rst2man.py sntpc.rst > sntpc.8
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.
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.\" rst2man.py comes from the SBo development/docutils package.
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.
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.SH SYNOPSIS
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.sp
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sntpc [\fB\-bhnv\fP] [\fB\-p\fP \fIport\fP] [\fB\-s\fP \fIserver\fP] [\fB\-t\fP \fIthreshold\fP]
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.SH DESCRIPTION
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.sp
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\fBsntpc\fP queries an NTP server for the current time, and sets the
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local clock to the time reported by the server. It\(aqs a standalone
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binary, with no config file and no dependency on the \fIntp\fP package.
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.sp
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\fBsntpc\fP does not run as a daemon like \fBntpd\fP does. To keep
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the time in sync, you can run \fBsntpc\fP from root\(aqs \fBcrontab\fP(1)
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every 30 minutes (or however often it\(aqs necessary).
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.sp
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\fBsntpc\fP requires root access to actually set the local clock,
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although it can be run with \fB\-n\fP by non\-privileged users (e.g. with
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\fB\-v\fP to simply check the local time against the server\(aqs time).
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.SH OPTIONS
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.INDENT 0.0
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.TP
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.B \-b
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Allow time shift backwards (default: forward only).
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.TP
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.B \-h
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Show built\-in help message.
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.TP
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.B \-n
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No set time (dry run).
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.TP
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.B \-p
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Set server port number (default: 123).
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.TP
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.B \-s
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Set server name or IPv4 address (default: pool.ntp.org).
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.TP
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.B \-t
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Set maximum time offset threshold (default: 300 seconds). This can
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be set to a ludicrously high value such as 40000000000 (over 1,000 years)
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to effectively disable the threshold.
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.TP
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.B \-v
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Verbose (default: silent)
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.UNINDENT
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.SH COPYRIGHT
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.sp
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See the file /usr/doc/sntpc\-20181113_1ca1d00/LICENSE.txt for license information.
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.SH AUTHORS
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.sp
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sntpc was written by Greg Hewgill.
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.sp
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This man page written for the SlackBuilds.org project
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by B. Watson, and is licensed under the WTFPL.
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.SH SEE ALSO
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.sp
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\fBntpd\fP(1)
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.sp
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\fI\%https://www.ntp.org\fP
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.sp
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The sntpc homepage: \fI\%https://github.com/ghewgill/sntpc\fP
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.\" Generated by docutils manpage writer.
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