

The NTP Public Services Project, which is hosted by Internet Systems Consortium, Inc., provides support and additional development resources for the Official Reference Implementation of NTP. Background information about NTP, along with briefings andĪ bibliography, are available at the Network Time Synchronization Official Reference Implementation of NTP along with the Implementationĭocumentation. The NTP Project conducts Research and Development in NTP and produces the It is formalized by RFCs released by the IETF. NTP version 4, a significant revision of the previous NTP standard, is the current development version. NTP is a protocol designed to synchronize the clocks of computers over a network. Software distribution is copyrighted, as described in the NTP copyright page. Please contact the webmaster with any questions regarding copyright. Some portions of this site may be copyrighted by other authors. This web site, and all pages directly contained within, are in the

This page is home for the NTP Project (R&D). Welcome to ntp.org, home of the Network Time Protocol project. Please see the NTP Security Notice for vulnerability and mitigation details, and the Network Time Foundation Blog for more information. 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.
