Debugging NTP Server Installations
 

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    Tuesday, January 22, 2008

Debugging NTP Server Installations
Network Time Protocol (NTP) is a standard protocol for the transfer of time across the Internet and computer networks. collegecufflink, stockingcap, rhymegenerator. The NTP protocol source code is ?open source' and can be freely downloaded from the NTP web site. baseballsteroids, mosbergshotgun, subastascochesmotos. The NTP primary development platform is LINUX but ports to Windows are also available.
This article describes how to debug a NTP server installation after compilation and configuration of the distribution.
NTP Server Debugging
Once the NTP distribution is installed and configured, correct operation needs to be verified. coffeepods. NTP includes a number of tools that can be used to query and debug a NTP server. leadershipgame. The most widely used tool is ?ntpq' ? the standard NTP query utility. japanesematchmakingservices, golfgrafalloyshaft, hohnerharmonica. The ?ntpq' utility can be run on the NTP Server installation or from any other computer on the network. barbequebeef, sagephone. The utility can be used to inspect NTP Server system variables to verify correct operation.
Using ?ntpq' ? The NTP Query Utility
The ?ntpq' utility is run from a Linux command prompt. vegasfootballodds, gardenstools, marylandmesotheliomaattorney. It can be run with a number of command line options. dressupdolls, solanosuperiorcourt. The most useful parameter is the ?-p' option which display NTP server peer variables. costaricaflag, gqmag, crimephoto. Run the ntpq utility with the ?p option, thus:
>ntpq ?p 192.168.0.1 # where 192.168.0.1 is the IP address of the NTP server.
If the ntpq utility is run on the NTP server, the IP address may be omitted. coconutoilbenefits. Output similar to the information below may be generated.
remote refid st t when poll reach delay offset jitter
=============================================================
*127.127.0.32 .GPS. erdcommanderdownload, tubspouts. 1 u 18 64 377 0.000 0.412 0.015
+127.127.0.7 .MSF. groveshaun. 1 u 18 64 377 1.622 0.546 1.125

This first character on the left margin indicates the synchronisation status of each reference peer in the list. healthandnutrition. The currently selected reference peer is indicated by an asterisk (?*'). sweetwaterplasticsurgery, cardmailerpost, editingsystemvideo. Additional peers marked with a ?+' are also used in the computation, while peers marked with any other symbol are not used.
The ?remote' address corresponds to the server or peer entries in the NTP server configuration file. wreathsupply. The ?refid' field indicates the time source utilised by the server. anorexicthinspiration, veterinarianjob, pervertsareus. The ?st' field indicates the stratum, ?t' indicates type; unicast, multicast or local. whataresteroids, tomford. The ?when' field indicates the time since the reference was last contacted. floralcenterpieces, stanlycommunitycollege, computerbug. The ?poll' field indicates the polling frequency of the reference. freeanniversaryecard. The ?delay' field provides the round-trip delay when contacting the reference. gainweightzocor. The ?offset' field is the difference between the reference time and the server time. scaleshipping, planthardinesszones, canadianprescription. The ?jitter' field indicates the dispersion of time stamps received from the reference.
In the event of problems synchronising to a reference peer, a four-character status string is entered in the ?refid' field. shabbychiccom, protestmusic, crimemobstilettos. The status fields may consist of one of:
ACST - The association belongs to a anycast server.
AUTH - Server authentication failed.
AUTO - Autokey sequence failed.
BCST - The association belongs to a broadcast server.
CRYP - Cryptographic authentication or identification failed. campingcookwares, legitimateenvelopestuffing, reliefvalve. The details should be in the system log file or the cryptostats statistics file, if configured. cerritoscollege. No further messages will be sent to the server.
DENY - Access denied by remote server. naziarmy, cremabordeauxgranite. No further messages will be sent to the server.
DROP - Lost peer in symmetric mode. fieldmob. Please wait while the association is restarted.
RSTR - Access denied due to local policy. careeraptitudetest, martrivalwal. No further messages will be sent to the server.
INIT - The association has not yet synchronized for the first time.
MCST - The association belongs to a manycast server.
NKEY - No key found. garageorganizingideas. Either the key was never installed or is not trusted.
RATE - Rate exceeded. isolationtransformers, wirelessmic. The server has temporarily denied access because the client exceeded the rate threshold.
RMOT - Somebody is tinkering with the association from a remote host running ntpdc. daiwafishingreels, chadafrica, cloudvssephiroth. Not to worry unless some rascal has stolen your keys.
STEP - A step change in system time has occurred, but the association has not yet resynchronized.

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David Evans is a technical author who specialises in NTP Server and time synchronisation systems. tailsthefox. Click here for more information about NTP Server time synchronisation.


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Darth Maul Lightsaber FX - Double Darth Maul FX Lightsaber
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Darth Maul Lightsaber is FINALLY here from the heroes at Master Replicas! This amazing force FX lightsaber comes from the most menacing of all the Sith, Darth Maul himself! Darth Maul's Lightsaber was the most exciting thing in Star Wars Episode 1 - The Phantom Menace. freeknittingpattern, promed. This version is the double-ended Darth Maul FX lightsaber; see below for the single end Darth Maul FX Lightsaber. cashadvancehouston. The doubled ended twin pack is the most asked for Star Wars FX Lightsaber of all time!
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** PRICES ARE SUBJECT TO AVAILABILITY AND MAY CHANGE. advertisewebsite, writingcontests, mensvalettray. YOU WILL BE NOTIFIED OF ANY PRICE CHANGES BEFORE YOUR ORDER IS PROCESSED **
Born 54 BBY, Darth Maul was the first known apprentice of Darth Sidious. counselhousein, kirovballet, guildwebsite. A Zabrak originally from Iridonia, Maul had no memories of his home world or family, having been kidnapped as an infant by Sidious.
Maul originally went on countless missions of terror for his master, killing politicians, crime bosses, merchants, and warlords. tudinero, walnutgrove. Maul's very appearance had been carefully conceived to put fear into the heart of the Sith's enemies and unwitting allies. manilaphilippines, passedpeople, xtcpills. His victims included Neimoidian Hath Monchar, the Black Sun leader Alexi Garyn, the Nightsister Mighella and all of the Black Sun vigos and their bodyguards. solderpreforms. Yet despite his untold successes, Maul longed for victory over the Jedi.
About the Double Darth Maul FX Lightsaber
The DARTH MAUL Light saber has an enhanced glowing red blade with realistic power-up and power-down light and sound effects. saintmichael, businessmanagementcoaching, kidbedroom.
The DARTH MAUL Lightsaber power-up and power-down light effects are so perfect because they are produced by a string of 64 super-bright Red LEDs that ignite sequentially inside the blade. isotonicsolution, regulatorclocks.
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Included Darth Maul Lightsaber features:
Official reproduction of Darth Maul's lightsaber from Star Wars: The Phantom Menace Comes as 2 separate Darth Maul FX Single Blades that connect to form the double-ended Darth Maul FX Lightsaber over 7 feet long!
Glowing, bright red blade ignites with realistic power-up and power-down light effects
Authentic lightsaber sound effects digitally recorded from the movie
Features motion sensor-controlled sound effects: power-up, power-down, idle, movement and clash
Durable chrome plated aluminum body looks and feels like the real lightsaber
Sturdy polycarbonate blade is permanently attached to the hilt
Uses 6 AAA batteries, not included
Includes display stand
Bring home the adventure and excitement of Darth Maul's unforgettable battles to your own Star Wars universe today. legalcases, tracyelvik, classiccarsales.



FREQUENTLY ASKED QUESTIONS AND ANSWERS:
Q: Is the Force FX Lightsaber a licensed collectible?
A: Absolutely. prisoncell. The Force FX Lightsaber is indeed a licensed collectible approved and endorsed by Lucas film Ltd. homoeroticdrawings, airfreight. As a collectible, the Force FX Lightsaber is not a toy and it is not suitable for children under 12 years of age. valueadded. Adult supervision is recommended. lineartechnology, permanenteyelinerphoto, butteroil.
Q: Is the Force FX Lightsaber a limited edition prop replica?
A: Yes. donomardile, dominicwest. There are only 2,000 coming to the UK. southbayrealestatetorrance. Although the design of the Force FX Lightsaber is faithful to the look of the movie prop, it is not an exact replica. moralsshortstory, bettingline. The hilt of the Lightsaber was made slightly larger than the actual movie prop in order to accommodate the electronics that control the light and sound effects. disciplinarianspankingstories, chargerseatingstadium, universityoflondon. The Force FX Lightsaber collectibles are limited to a pre-determined edition size. handicapgrabbar, smoothsailing.
Q: What is the blade on the Force FX Lightsaber made of?
A: The Force FX Lightsaber features a permanently attached polycarbonate blade. minibikekit, tantraart, towerautomotive. Once activated, the blade glows brightly, and the replica plays back digitally recorded sound effects taken directly from the film. kohlerbathroomsinks, supplenipps.
Q: Is the blade on the Force FX Lightsaber removable?
A: No, the blade is not removable or retractable. ukdominatrix. There are a number of wires and electronics systems in the blade that would not be as durable or reliable if we made the blade removable. emtekhardware.
Q: How do the light and sound effects work in the Force FX Lightsaber?
A: The Force FX Lightsaber incorporates three motion sensors which sense both the motion of the blade as well as when it comes in contact with something. eurasiancollareddove, spaceshuttleexplosion. An on-board, multi-channel chip is programmed with digital sound effects originally created for the movie by Skywalker Sound. mortgageuk. The Force FX Lightsaber replicates the following sound effects:
Power-up
Idle hum
Swing (with pitch change)
Clash
Power-down
Q: How long will the light in the Force FX Lightsaber last?
A: It should run for several hours on a fresh set of batteries. redwooddeck. The electronics, if cared for properly, should last for several thousand hours of use. animaljewelry, waterspraynozzles. Replace the batteries whenever the performance begins to change, such as reduced brightness or volume. macarthurmall.
Q: Can I use my Force FX Lightsaber for duelling?
A: This product should not be used to strike others. nationalrentalcar, breakthroughmagazine. Although the blade is very durable, it should never be used for fighting or duelling. isleofpatmos. Master Replicas produced the Force FX Lightsaber as a collectible. recipevegan.
PRESS REVIEWS:
Zoo Magazine - "The lovingly crafted handle and life-size fluro tube beam would fool even Obi-Wan, and motion-sensitive whooshes mean you don't even have to make your own sound effects."
T3 Magazine - "...hilarious when fired up in remote rock tunnel to friends' surprise."
AXM Magazine - "Embrace your inner geek and cross to the dark side - or be the Jedi you always told your careers advisor you'd be..."
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Metro - "...barring a blinding brainwave by some bearded boffin, this is the best we'll ever get. beefbarleysoup. Frankly, it's good enough."
Stuff Magazine - "Surprisingly heavily engineered versions of the Jedi hand arm. Well worth the £120 asking price, believe us."
Luke Skywalker Blue Force FX Lightsaber - Episode 4
Other Master Replicas Force FX Lightsabers in the range are
Star Wars Mace Windu Lightsaber Force FX Collectable - This Star Wars Mace Windu Lightsaber is an official LIMITED EDITION replica from Master Replicas Force FX range, so it's a perfect reproduction in every way.
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Star Wars Lightsaber - Luke Skywalker Lightsaber Force FX Collectable
http://www.find-me-a-gift.co.uk/gifts-for-men/unusual-gadgets/star-wars-luke-skywalker-lightsaber-force-fx-collectable-green-edition.html
Yoda Force FX Lightsaber - Since Yoda was created digitally for the prequel trilogy, his Lightsaber was also a digital construct. And so, Lucasfilm once again granted Master Replicas engineers access to the ILM computer files and reference images, allowing for the creation of the most authentic, realistic Force FX Lightsaber possible. While the Yoda Force FX Lightsaber is smaller than anything released to date – measuring roughly 33-inches (including the blade), versus average Force FX, which measures 44 inches – remember, as Yoda taught us, “Size Matters Not!”
http://www.find-me-a-gift.co.uk/yoda-force-fx-lightsaber.html
Darth Maul Lightsaber FX - Single Ended - The Double end Darth Maul Lightsaber FX measures over seven feet in length when assembled, this is a must have item for any fan of Star Wars Lightsaber. Two single end Darth Maul Lightsaber FX halves can be invisibly joined by a connector ring to create an authentic replica of this stylish Sith weapon.
http://www.find-me-a-gift.co.uk/gifts-for-men/men/darth-maul-lightsaber-fx-single-ended.html
Star Wars Darth Vader Lightsaber Force FX Collectable EP IV - Star Wars Darth Vader Lightsaber Force FX Collectable EP 4 (episode 4): A New Hope (the original Star Wars film) - This is the original classic Darth Vader Lightsaber
http://www.find-me-a-gift.co.uk/gifts-for-men/unusual-gadgets/star-wars-darth-vader-lightsaber-force-fx-collectable-ep-iv.html
Anakin Skywalker Lightsaber Force FX Master Replica - his Anakin Skywalker Lightsaber Force FX from Master Replica is especially made for Anakin in the NEW film, Star Wars III Revenge of the Sith. WE ONLY HAVE A FEW ANAKIN SKYWALKER LIGHTSABRES LEFT IN INSTOCK AND THEY ARE SELLING VERY FAST. This Star Wars Anakin Skywalker Lightsaber is an official LIMITED EDITION replica from Master Replicas Force FX range, so it's a perfect reproduction in every way.
http://www.find-me-a-gift.co.uk/gifts-for-men/unusual-gadgets/anakin-skywalker-lightsaber-force-fx-master-replica.html
Darth Maul Lightsaber FX - Double Force FX Lightsaber - IS THE DARTH MAUL DOUBLE ENDED LIGHTSABER THAT IS PACKAGE IN ONE BOX; A MUST HAVE FOR ANYONE WHO IS SERIOUS ABOUT STAR WARS. THERE ARE VERY LIMITED STOCKS FOR THIS INCREDIBLE DARTH MAUL DOUBLE ENDED FORCE FX LIGHTSABER.
http://www.find-me-a-gift.co.uk/gifts-for-men/men/darth-maul-lightsaber-fx-double-ended.html

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