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 ...
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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 ...
Known Operating System Issues Lost Interrupts There are several mechanisms for systems to miss timer interrupts. All cause troubles for time keeping. Scheduler ...
VMware and NTP General Notes VMWare ESX server includes a version of the reference implementation ntpd running as a service in the VMware service console. As of ESX ...
NTP Support Web This is a web based collaboration area for Community Supported Documentation for the reference implementaion of NTP from www.ntp.org. Please see the ...
Installing NTP NTP may be installed from the original source code, released by the Project at the University of Delaware, or through pre packaged or pre compiled versions ...
Configuring NTP Simple Client Configuration This is the minimum configuration for an NTP Client which just needs "good enough" time. driftfile /var/lib/ntp/ntp ...
Undisciplined Local Clock The Undisciplined Local Clock should, generally, only be used when an ntpd must be able to serve time to others even when no real time ...
Orphan mode Orphan Mode is the replacement for the UndisciplinedLocalClock. It was added to ntp 4.2.2. Orphan Mode allows a group of ntpds to automonously select a ...
Configuring Local Refclocks All refclocks are local in that they are directly attached to an ntpd . Sometimes it is neccessary to synchronize clocks in the absence ...
Network Code Wizards Wanted The NTP Project needs more networking code wizards the current set of volunteers are swamped. We need help with IPv4 and IPv6, on both ...
Help Wanted If you want help with something, please add your request here. Please add your entries to the top of the list following the format of the existing entries ...
Monitoring and Controlling NTP See TroubleshootingNTP for checking the behavior of a particular machine. Monitoring NTP For ongoing monitoring of an NTP network there ...
Garmin Refclock Users (Hey, if you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer Vendor and ...
NMEA Refclock Users (Hey, if you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer Vendor and ...
Supybot Wrangler Wanted We use a on Main.ContactInformation the NTP Project IRC channels and we could really use somebody who to "take care of it" and help make ...
Vendor Links The following NTP related links are (usually) contributed, and maintained, by the respective vendor. Individuals finding errors are encouraged to contact ...
NTP 4.x for Windows NT The document included in this topic is not cached , it is included from its original location (http://www.eecis.udel.edu/~mills/ntp/html/hints ...
Configuring Autokey This topic provides a step by step guide for setting up NTP Autokey Authentication for NTP versions up to 4.2.4 . See the Authentication specification ...
HP !Z3801A Refclock Users (Hey, if you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer Status ...
ATOM (PPS) Refclock Users (Hey, if you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer PPS ...
Motorola Oncore Refclock Users (Hey, if you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer ...
Configuring Audio Refclocks Here's some hints with regards to audio refclock debugging. These drivers include the wwv, irig, and chu reference clocks. Make sure your ...
Please use RefclockUsersDev for general discussion about RefclockUsers topics. The wwv and irig drivers work nicely with freebsd and linux in my experience. The usual ...
WWV Refclock Users (Hey, if you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer WWV Receiver ...
SHM Refclock Users (If you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer Talks to Status ...
WWVB Refclock Users (Hey, if you think more/different columns are needed, please edit accordingly!) NTP Version Operating System Computer WWVB Receiver ...
Configuring NMEA Refclocks Generic NMEA refclocks use the 127.127.20.x driver. The configuration directives required depends on the receiver and its internal configuration ...
Configuring HP !Z3801A Refclocks The HP !Z3801A is popular with hams. They also make great reference clocks for NTP. A large number of them were available surplus ...
Z3801A GPS receiver modifications Description The !Z3801A is a GPS timing receiver designed for CDMA base stations. Many of these devices are available on the surplus ...
ntpd access restrictions Restrictions are used to control access to your ntpd and are, unfortunately, one of the most misunderstood parts of ntpd configuration ...
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 ...
Cisco NTP Almost all Cisco networking devices (routers, switches, firewalls, etc.) include an NTP implementation. Some routing protocols require synchronized time ...