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16 …to the NTPv4 reference implementation code base and documentation. This report documents the upgra…
17 …to some degree enhance or burden the product. There has been a continuing effort over the years to…
20 …ified, transparent and easier to maintain design. In a few cases behavior has been modified to cor…
22 …mmand index includes a brief gloss for each command. A page has been added to show the various sta…
23 …am manual and configuration pages has been moved to these pages with the intent of the original pa…
25 …to decrease vulnerability to configuration errors and possibly hostile attack. The order of restri…
27 …circa 2003. Headway violations result in an optional <em>kiss-o'-death</em> (KoD) packet. To avoid…
28 …to the server minimum headway and avoids guessing. This is done by setting the ppoll field in the …
29 …to 3 (8 s), which reduces the risetime to 250 s. This may be useful for rapid convergence when a c…
30 …to Autokey messages. This fixes a problem when iburst and autokey are both in play and when for so…
32 … has always been a problem, as it can take a very long time to trim the frequency estimate to nomi…
33 …h the frequency is directly calculated and the discipline then turned over to the feedback loop. T…
34 … which then must be amortized by the feedback loop. While this may take up to an hour and result i…
35 <p>In the original design the frequency file was written at one-hour intervals. This apparently mak…
37 …to avoid fake leap warnings displayed by an errant server and to insure correct response in case o…
38 …ost status word. Transitions between warnings and no warnings are reported to the protostats file,…
40 <p>The orphan mode code has been overhauled to correct some minor bugs and to clarify operation und…
41 …to Internet time servers is interrupted. Orphan mode was designed to reduce the need for the local…
43 …to refresh the clock filter and resynchronize. Once the client has backed off the poll interval af…
44 …ntent is to avoid a blast of <tt>iburst</tt> packets unless the server actually responds to the fi…
45 …to speed response to initial startup when a reference clock is available, the clock is set on the …
47 …to Autokey configuration and key generation has been removed and simplified. On host certificates,…
48 …o or more server in the same group which themselves had certificate trails to different trusted ho…
49 <p>The protocol machine is now restarted every several days in order to update certificates and lea…
51 …, some with errors and a few new ones added. Old versions of ntpq continue to work without change,…
52 <p>The ntpq as command has been changed to fix some very old bugs. The display is now consistent wi…
54 …to this file as reported and optionally to the system log. Many reports that sometimes clog up the…
55 …-6 monitoring protocol was designed circa 1988 the considered intent was that monitoring functions…
56 …to do with using other than the NTP packet, status words and events for monitoring purposes. Empha…
57 …to align for reporting purposes, some scripts no longer worked. The scripts should be changed to u…
58 <h4>11. Two-step and timestamp capture</h4>
59 …-step protocol in which the transmit timestamp is sent in a following message. However, the PTP de…
60 …f the packet and then receive timestamp at the end. This makes it possible to accurately measure t…
65 <p>The autonomous configuration (pool and manycast) code was refined to more reliably prune excess …