---
title: Telegraf Documentation
description: Telegraf plugin for collecting metrics from OpenNTPD
url: https://docs.influxdata.com/telegraf/v1/input-plugins/openntpd/
estimated_tokens: 1458
product: Telegraf
version: v1
---

-   Telegraf v1.12.0+

# OpenNTPD Input Plugin

This plugin gathers metrics from [OpenNTPD](http://www.openntpd.org/) using the `ntpctl` command.

The `ntpctl` binary must be present on the system and executable by Telegraf. The plugin supports using `sudo` for execution.

**Introduced in:** Telegraf v1.12.0 **Tags:** server, network **OS support:** all

## Global configuration options

Plugins support additional global and plugin configuration settings for tasks such as modifying metrics, tags, and fields, creating aliases, and configuring plugin ordering. See [CONFIGURATION.md](/telegraf/v1/configuration/#plugins) for more details.

## Configuration

```toml
# Get standard NTP query metrics from OpenNTPD.
[[inputs.openntpd]]
  ## Run ntpctl binary with sudo.
  # use_sudo = false

  ## Location of the ntpctl binary.
  # binary = "/usr/sbin/ntpctl"

  ## Maximum time the ntpctl binary is allowed to run.
  # timeout = "5s"
```

### Permissions

It’s important to note that this plugin references `ntpctl`, which may require additional permissions to execute successfully. Depending on the user/group permissions of the telegraf user executing this plugin, you may need to alter the group membership, set facls, or use sudo.

#### Group membership (recommended)

```bash
$ groups telegraf
telegraf : telegraf

$ usermod -a -G ntpd telegraf

$ groups telegraf
telegraf : telegraf ntpd
```

#### Sudo privileges

If you use this method, you will need the following in your telegraf config:

```toml
[[inputs.openntpd]]
  use_sudo = true
```

You will also need to update your sudoers file:

```bash
$ visudo
# Add the following lines:
Cmnd_Alias NTPCTL = /usr/sbin/ntpctl
telegraf ALL=(ALL) NOPASSWD: NTPCTL
Defaults!NTPCTL !logfile, !syslog, !pam_session
```

Please use the solution you see as most appropriate.

## Metrics

-   ntpctl
    -   tags:
        -   remote (remote peer for synchorization)
        -   stratum (remote peer stratum)
    -   fields:
        -   delay (round trip delay to the remote peer in milliseconds; `float`)
        -   jitter (mean deviation (jitter) for remote peer; `float`)
        -   offset (mean offset (phase) to remote peer in milliseconds; `float`)
        -   poll (polling interval in seconds; `int`)
        -   next (number of seconds until the next poll; `int`)
        -   wt (peer weight; `int`)
        -   tl (peer trust level; `int`)

## Example Output

```text
openntpd,remote=194.57.169.1,stratum=2,host=localhost tl=10i,poll=1007i,
offset=2.295,jitter=3.896,delay=53.766,next=266i,wt=1i 1514454299000000000
```

#### Related

-   [Configure plugins](/telegraf/v1/configure_plugins/)
-   [OpenNTPD Plugin Source](https://github.com/influxdata/telegraf/tree/v1.38.4/plugins/inputs/openntpd/README.md)