r4 - 2003-11-10 - 02:46:15 - SteveKosteckeYou are here: NTP >  Support Web > WebChanges
NTP users are strongly urged to take immediate action to ensure that their NTP daemon is not susceptible to use in a reflected denial-of-service (DRDoS) attack. Please see the NTP Security Notice for vulnerability and mitigation details, and the Network Time Foundation Blog for more information. (January 2014)

50 Recent Changes in Support Web retrieved at 05:47 (GMT)

Statistics for Support Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and ...
Vendor Links The following NTP related links are (usually) contributed, and maintained, by the respective vendor. Individuals finding errors are encouraged to contact ...
Known Operating System Issues Lost Interrupts There are several mechanisms for systems to miss timer interrupts. All cause troubles for time keeping. Scheduler HZ ...
ntpd access restrictions Restrictions are used to control access to your ntpd and are, unfortunately, one of the most misunderstood parts of ntpd configuration ...
Configuring NTP Simple Client Configuration 4.2.7 and Later Simple Client Configuration, Visible on the Internet This is the minimum configuration for an NTP Client ...
Motivation for NTP Clocks in Computers and Hardware devices are problematic. Unsynchronized, they drift, sometimes very rapidly and certainly unpredictably. This can ...
Technical Background Information Motivation Theory of Operation The Protocol The Algorithms Operational Considerations
NTP: Theory of Operation Talk about the t1, t2, t3, t4 timestamps. Talk about the various noise frequencies, and how we can do better by finding and tracking these ...
Motorola Oncore Refclock Users NTP Version Operating System Computer Oncore Model # Status Who 4.2.0 Solaris 8 Sun Ultra 10 M12 T ...
NTP Support Web This is a web based collaboration area for Community Supported Documentation for the reference implementation of NTP from www.ntp.org. Please see the ...
Choosing Reference Clocks There are many choices for reference clocks. In increasing levels of precision they are: modem refclocks radio refclocks ...
# # Configuring NMEA Refclocks Generic NMEA refclocks use the 127.127.20.x driver. The configuration directives required depends on the receiver and its internal ...
TOPIC TITLE HERE REPLACE ME WITH YOUR TEXT The NAVBAR and SECTION0 lines are required for topics that will be listed in the TableOfContents. You may delete the NTPNAV ...
Orphan mode Orphan Mode is the replacement for the UndisciplinedLocalClock. It was added to ntp 4.2.2. Orphan Mode allows a group of ntpd processes to automonously ...
Known Hardware Issues APIC and ACPI These can cause problems for maintaining clock accuracy. See the APIC and ACPI topics under ConfiguringTrimblePalisadeAcutimeRefclocks ...
Java SNTP Client This is a Java implementation of an NTP client, and is released under the GPL license. It handles NTP parameters as native Java types, making it Java ...
Garmin Refclock Users NTP Version Operating System Computer Vendor and Model # Status Who 4.2.4 FreeBSD6 x86 64 18 LVC works ...
Configuring Trimble Palisade/Acutime Refclocks This topic explains how to get a Trimble Palisade/Acutime refclock working and points out some tips that will be useful ...
NMEA Refclock Users NTP Version Operating System Computer Vendor and Model # Status Who 4.2.4p4 Linux 2.4.20.NANO, FreeBSD 6.2 x86 ...
Monitoring and Controlling NTP See TroubleshootingNTP for checking the behavior of a particular machine. Monitoring NTP For ongoing monitoring of an NTP network there ...
Autokey Configuration for NTP 4.2.4 (and earlier) This topic provides a step by step guide for setting up NTP Autokey Authentication for NTP versions up through 4 ...
Autokey Configuration for NTP stable releases This topic provides a step by step guide for setting up NTP Autokey Authentication for NTP stable release versions 4 ...
Mailing List Moderators wanted
Help Wanted Mailing List Moderators wanted We one (or more) volunteers who are willing to donate ~5 to ~20 minutes a day (total) to moderate our 41 (!) mailing lists ...
Help Wanted View complete list Support Updates: View complete list Current Versions ...
Improving the SHM Refclock 127.127.28.u where unit ( u ) values of 0 and 1 are 0600 from NTP's POV, and units 2 and 3 are 0666 . The SHM refclock could stand ...
Configuring SHM Refclocks Under LINUX there is the gpsd service which provides SHM services. In ntp.conf include lines: # ... and use gpsd daemon for time sync server ...
!! Configuring Parse Refclocks Related Topics: : ParseRefclockUsers Configuring a Meinberg GPS167BGT Harlan uses the Yost serial connector scheme. The COMx and ...
Windows Time Service Beginning with Windows 2000, Microsoft includes the Windows Time Service with all versions of Windows. Initially, the pupose of Windows Time Service ...
Inexpensive OEM GPS Receivers With PPS Garmin GPS 18LVC Refclock Driver: Type 20 PPS: 1us Cost: ~$70 $80 (2007 11 10) Specifications: http ...
Yost Serial Connectors http://yost.com/computers/RJ45 serial/ http://www.sol.net/serial guide/ Harlan makes one change to the above he does a pigtail to ...
Troubleshooting NTP First things first. Please be sure you have your NTP network properly designed. Also make sure you have NTP properly configured. If your ntp.conf ...
Modem Refclock Users NTP Version Operating System Modem Service Status Who dev (and older) NIST, USNO Working Dave Mills ...
Configuring Spectracom TSync PCI Refclocks HarlanStenn 2012 03 26
Configuring Refclocks By Name By Refclock Driver Number Adjusting Radioclocks #ByName By Name Configuring ATOM (PPS) Refclocks Configuring ...
Configuring ATOM (PPS) Refclocks The ATOM refclock is built by default. Building is enabled/disabled by the option enable ATOM or disable ATOM in the 'configure ...
TOPIC TITLE HERE 58558556 The NAVBAR and SECTION0 lines are required for topics that will be listed in the TableOfContents. You may delete the NTPNAV and SECTION0 ...
WWV Refclock Users NTP Version Operating System Computer WWV Receiver Status Who 4.2.5p117 #64;1.1730 o Linux/2.6.24.2 PII/400 Ramsey ...
WWVB Refclock Users NTP Version Operating System Computer WWVB Receiver Status Who 4.2.0 1.1161 nop FreeBSD 5.4 433 MHz PC Spectracom ...
Trimble Palisade Acutime Refclock Users NTP Version Operating System Computer Model # Status Who 4.2.4 Debian Linux 300 Mhz Trimble ...
Jupiter Refclock Users NTP Version Operating System Computer Jupiter Model # Status Who 4.x (any) FreeBSD 6.1 300 MHz Geode TU30 ...
HP Z3801A Refclock Users NTP Version Operating System Computer Status Who ntp 4.2.0b rc1 Linux 2.4 Kernel PPSkit 566 MHz PC OK HalMurray ...
HOPF Refclock Users NTP Version Operating System Computer Model # NTP Driver # Status Who 4.2.4 Solaris 7 Sun SPARCstation IPC ...
Endrun Praecis Refclock Users NTP Version Operating System Computer Endrun Praecis Model # Status Who Related Topics: ConfiguringEndrunPraecisCTRefclocks ...
ATOM (PPS) Refclock Users NTP Version Operating System Computer PPS Source/Connection Status Who 4.2.4 Solaris 7 Sun SPARCstation IPC ...
Discussion of ConfiguringAutokey ConfiguringAutokey was created to fill a need for an accurate step by step guide for setting up NTP Authentication using Autokey. ...
NTP Support Table of Contents WebHome ProxiesTunnelsAndVPNs QuickStartIndex GettingStarted NTPFourWindowsNTHints InstallingNTP ...
Selecting Offsite NTP Servers Upstream Time Server Selection Criteria When looking for off site NTP servers to be used, keep some things in mind: Rules of Engagement ...
Configuring Garmin Refclocks General Notes The Garmin GPS18 LVC works well with NTP. Beware: The other models of the GPS18 don't have PPS support. You should be able ...
Bancomm Refclock Users NTP Version Operating System Computer Model # Status Who 4.2.4 FreeBSD 5.3 Pentium P55C/233Mhz bc637PCI ...
Number of topics: 50

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