timedatectl:tldr:7b149

The command "timedatectl set-ntp on" is used to enable the Network Time Protocol (NTP) synchronization on a Linux system.

NTP is a networking protocol that allows computers to synchronize their clocks over a network. It is widely used to ensure accurate timekeeping on servers, computers, and other network-connected devices. Enabling NTP synchronization ensures that your system's clock is in sync with a reliable time source, reducing the chances of time discrepancies or drift.

When you run the command "timedatectl set-ntp on," it instructs the timedatectl tool, which is used for time and date management in systemd-based Linux distributions, to turn on NTP synchronization. This means that your system will start periodically querying NTP servers to adjust its own clock to match the server's time.

Enabling NTP synchronization is useful in various scenarios, especially when dealing with systems that require accurate timekeeping, such as servers used for distributed computing, network logging, or authentication. It ensures that time-based service operations, software deployment, and other time-sensitive tasks are performed correctly.