NTP

Network Time Protocol is used to synchronize the clocks of computers on a network. How accurately it synchronizes the clocks of client computers depends on a number of factors. However, the following timings can be used as a guide: Public Internet NTP Servers: <10ms. Public Internet Servers over asymmetric connection (ADSL): <100ms. NTP Servers on […]

Simple Network Time Protocol (SNTP) is an Internet Protocol (IP) used to synchronize the clocks of networks of computers. SNTP is a subset of the Network Time Protocol (NTP). The latest version is SNTP v4. It can synchronize seamlessly to full-blown NTP servers. Originally developed for small computers and micro-controllers. Requires less memory and processing […]

The Internet has many NTP servers that can be used to synchronize the time of networks and computers. Most provide a service completely free of charge. So why do organizations need to seriously consider buying a dedicated NTP appliance? Dedicated hardware time references installed locally, within an organization, provide a number of advantages over Internet […]

By implementing a few best practice principles, organizations can attain robust and reliable timing for their network infrastructure: Install 3 or more redundant Stratum 1 NTP servers. Configure lower stratum clients with at least 3 higher stratum servers. Peer lower stratum devices to share time. Secure NTP communications with authentication. Employ Stratum 1 servers that […]

NTP can be installed and configured on Linux in a few simple steps: Install the NTP service. Modify the NTP configuration file, ‘/etc/ntp.conf’, with required options. Add reference clock peers to the configuration file. Add drift file location to the configuration file . Add optional statistics directory to the configuration file . Enable and start […]

Network Time Protocol (NTP) is a standard Internet Protocol (IP) for synchronizing the clocks of computers on a network. NTP coordinates the real time clocks of computers on a network. Developed at the University of Delaware in 1985. It is one of the oldest internet protocols still in use. The latest release is version 4.2. […]