Lines Matching +full:clock +full:- +full:accuracy
1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 <meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
6 <title>ntpdate - set the date and time via NTP</title>
10 <h3><tt>ntpdate</tt> - set the date and time via NTP</h3>
14 <!-- #BeginDate format:En2m -->21-Jul-2018 04:09<!-- #EndDate -->
25 See the <tt>-q</tt> command line option in the <a
26 href="ntpd.html"><tt>ntpd</tt> - Network Time Protocol (NTP) daemon</a>
27 page and/or the <a href="sntp.html"><tt>sntp</tt> - Simple Network Time
30 <tt>ntpdate [ -46bBdqsuv ] [ -a <i>key</i> ] [ -e <i>authdelay</i> ] [ -k <i>keyfile</i> ] [ -o <i>…
32 …d and a subset of the NTP clock filter and selection algorithms are applied to select the best of …
33 …clock, or it can be run from the host startup script to set the clock at boot time. This is useful…
34 …y <tt>ntpdate</tt> in one of two ways. If <tt>ntpdate</tt> determines the clock is in error more t…
35 …-u</tt> flag was not specified, decline to set the date if an NTP server daemon (e.g., <tt>ntpd</t…
36 …t name is expected, a <tt>-4</tt> qualifier preceding the host name forces DNS resolution to the I…
40 <dt><tt>-4</tt></dt>
42 <dt><tt>-6</tt></dt>
44 <dt><tt>-a <i>key</i></tt></dt>
46 <dt><tt>-B</tt></dt>
47 …-500 ms. The default is to step the time using settimeofday() if the offset is greater than +-500 …
48 <dt><tt>-b</tt></dt>
50 <dt><tt>-d</tt></dt>
51 … <tt>ntpdate</tt> will go through all the steps, but not adjust the local clock and using an unpri…
52 <dt><tt>-e <i>authdelay</i></tt></dt>
54 <dt><tt>-k <i>keyfile</i></tt></dt>
56 <dt><tt>-o <i>version</i></tt></dt>
59 <dt><tt>-p <i>samples</i></tt></dt>
61 <dt><i><tt>-q</tt></i></dt>
62 <dd>Query only - don't set the clock.</dd>
63 <dt><tt>-s</tt></dt>
65 <dt><tt>-t <i>timeout</i></tt></dt>
67 <dt><tt>-u</tt></dt>
68 …d you want to synchronize with hosts beyond the firewall. Note that the <tt>-d</tt> option always …
69 <dt><tt>-<i>v</i></tt></dt>
73 <tt>ntpdate</tt>'s exit status is zero if it finds a server and updates the clock, and nonzero othe…
75 <tt>/etc/ntp.keys</tt> - encryption keys used by <tt>ntpdate</tt>.
77 …ured offset, since this (it is argued) will tend to keep a badly drifting clock more accurate. Thi…