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diff --git a/contrib/ntp/html/ntptrace.htm b/contrib/ntp/html/ntptrace.htm index 675c347..28313a5 100644 --- a/contrib/ntp/html/ntptrace.htm +++ b/contrib/ntp/html/ntptrace.htm @@ -1,82 +1,91 @@ -<HTML> -<HEAD> - <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> - <META NAME="GENERATOR" CONTENT="Mozilla/4.01 [en] (Win95; I) [Netscape]"> - <TITLE>ntptrace - trace a chain of NTP servers back to the primary -source -</TITLE> -</HEAD> -<BODY> - -<H3> -<TT>ntptrace</TT> - trace a chain of NTP servers back to the primary source</H3> - -<HR> -<H4> -Synopsis</H4> -<TT>ntptrace [ -vdn ] [ -r <I>retries</I> ] [ -t <I>timeout</I> ] [ <I>server</I> -]</TT> -<H4> -Description</H4> -<TT>ntptrace</TT> determines where a given Network Time Protocol (NTP) -server gets its time from, and follows the chain of NTP servers back to -their master time source. If given no arguments, it starts with <TT>localhost</TT>. -Here is an example of the output from <TT>ntptrace</TT>: -<PRE>% ntptrace +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> +<html> +<head> +<meta name="generator" content="HTML Tidy, see www.w3.org"> +<title>ntptrace - trace a chain of NTP servers back to the primary +source</title> +</head> +<body> +<h3><tt>ntptrace</tt> - trace a chain of NTP servers back to the +primary source</h3> + +<img align="left" src="pic/alice13.gif" alt="gif"><a href= +"http://www.eecis.udel.edu/~mills/pictures.htm">from <i>Alice's +Adventures in Wonderland</i>, Lewis Carroll</a> + +<p>The rabbit knows the way back.<br clear="left"> +</p> + +<hr> +<h4>Synopsis</h4> + +<tt>ntptrace [ -vdn ] [ -r <i>retries</i> ] [ -t <i>timeout</i> ] [ +<i>server</i> ]</tt> + +<h4>Description</h4> + +<p><tt>ntptrace</tt> determines where a given Network Time Protocol +(NTP) server gets its time from, and follows the chain of NTP +servers back to their master time source. If given no arguments, it +starts with <tt>localhost</tt>. Here is an example of the output +from <tt>ntptrace</tt>:</p> + +<pre> +% ntptrace localhost: stratum 4, offset 0.0019529, synch distance 0.144135 server2ozo.com: stratum 2, offset 0.0124263, synch distance 0.115784 usndh.edu: stratum 1, offset 0.0019298, synch distance 0.011993, refid -'WWVB'</PRE> -On each line, the fields are (left to right): the host name, the host stratum, -the time offset between that host and the local host (as measured by <TT>ntptrace</TT>; -this is why it is not always zero for "<TT>localhost</TT>"), the host synchronization -distance, and (only for stratum-1 servers) the reference clock ID. All -times are given in seconds. Note that the stratum is the server hop count -to the primary source, while the synchronization distance is the estimated -error relative to the primary source. These terms are precisely defined -in RFC-1305. -<H4> -Options</H4> - -<DL> -<DT> -<TT>-d</TT></DT> - -<DD> -Turns on some debugging output.</DD> - -<DT> -<TT>-n</TT></DT> - -<DD> -Turns off the printing of host names; instead, host IP addresses are given. -This may be useful if a nameserver is down.</DD> - -<DT> -<TT>-r <I>retries</I></TT></DT> - -<DD> -Sets the number of retransmission attempts for each host (default = 5).</DD> - -<DT> -<TT>-t <I>timeout</I></TT></DT> - -<DD> -Sets the retransmission timeout (in seconds) (default = 2).</DD> - -<DT> -<TT>-v</TT></DT> - -<DD> -Prints verbose information about the NTP servers.</DD> -</DL> - -<H4> -Bugs</H4> -This program makes no attempt to improve accuracy by doing multiple samples. -<HR> -<ADDRESS> -David L. Mills (mills@udel.edu)</ADDRESS> - -</BODY> -</HTML> +'WWVB' +</pre> + +On each line, the fields are (left to right): the host name, the +host stratum, the time offset between that host and the local host +(as measured by <tt>ntptrace</tt>; this is why it is not always +zero for "<tt>localhost</tt>"), the host synchronization distance, +and (only for stratum-1 servers) the reference clock ID. All times +are given in seconds. Note that the stratum is the server hop count +to the primary source, while the synchronization distance is the +estimated error relative to the primary source. These terms are +precisely defined in RFC-1305. + +<h4>Options</h4> + +<dl> +<dt><tt>-d</tt></dt> + +<dd>Turns on some debugging output.</dd> + +<dt><tt>-n</tt></dt> + +<dd>Turns off the printing of host names; instead, host IP +addresses are given. This may be useful if a nameserver is +down.</dd> + +<dt><tt>-r <i>retries</i></tt></dt> + +<dd>Sets the number of retransmission attempts for each host +(default = 5).</dd> + +<dt><tt>-t <i>timeout</i></tt></dt> + +<dd>Sets the retransmission timeout (in seconds) (default = +2).</dd> + +<dt><tt>-v</tt></dt> + +<dd>Prints verbose information about the NTP servers.</dd> +</dl> + +<h4>Bugs</h4> + +This program makes no attempt to improve accuracy by doing multiple +samples. + +<hr> +<a href="index.htm"><img align="left" src="pic/home.gif" alt= +"gif"></a> +<address><a href="mailto:mills@udel.edu">David L. Mills +<mills@udel.edu></a></address> +</body> +</html> + |
