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chrony

A versatile implementation of the Network Time Protocol (NTP).

Utilitiesntptime-synchronizationnetworkinglinuxdaemonopen-sourcecli
chrony screenshot

About

chrony is an open-source NTP implementation that synchronizes system clocks with NTP servers, reference clocks, and manual input. It operates as both an NTP client and server, designed to perform well in challenging conditions such as intermittent connectivity, congested networks, and virtual machines. It includes a daemon (chronyd) and a command-line interface (chronyc) for monitoring and configuration.

Problem

System clocks drift and need accurate, reliable synchronization across varying network conditions and hardware environments.

For

system administrators and developers managing time synchronization on servers or workstations

How it works

chrony runs a background daemon (chronyd) that continuously adjusts the system clock using NTP servers or reference clocks, while a CLI tool (chronyc) allows real-time monitoring and configuration.

Business model

open-source

Status

launched

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