---
title: "PTP4L"
slug: "ptp4l"
updated: 2024-10-30T10:41:23Z
published: 2024-10-30T10:41:23Z
canonical: "docs.telosalliance.com/ptp4l"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PTP4L

Precision Time Protocol Daemon for Linux, also known as PTP4L, is a container that will sync your container host's system time to a PTP Grandmaster. This container only needs to be used when another container based solution cannot sync to a PTP Grandmaster on its own.

This container assumes that a valid PTP grandmaster is on the network using PTP domain 0. Domain and other settings may be changed-- please contact the Telos Alliance team member who provided you with this installation document for more information if needed.