---
title: ''
description: Telegraf plugin for collecting metrics from Radius
url: https://docs.influxdata.com/telegraf/v1/input-plugins/radius/
estimated_tokens: 454
product: Telegraf Enterprise
version: v1
publisher: InfluxData
canonical: https://docs.influxdata.com/telegraf/v1/input-plugins/radius/
date: '2026-06-08T21:54:11+02:00'
lastmod: '2026-06-08T21:54:11+02:00'
---

==========

* Telegraf v1.26.0+

[Plugin source](https://github.com/influxdata/telegraf/tree/v1.39.1/plugins/inputs/radius/)[Download configuration](https://raw.githubusercontent.com/influxdata/telegraf/refs/tags/v1.39.1/plugins/inputs/radius/sample.conf)

# Radius Input Plugin

This plugin collects response times for [Radius](https://datatracker.ietf.org/doc/html/rfc2865) authentication
requests.

**Introduced in:** Telegraf v1.26.0**Tags:** server**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.

## Secret store support

This plugin supports secrets from secret stores for the `username`, `password`and `secret` option. See the[secret store documentation](/telegraf/v1/configuration/#secret-store-secrets) for more details on how to use them.

## Configuration

```toml
[[inputs.radius]]
  ## An array of Server IPs and ports to gather from. If none specified, defaults to localhost.
  servers = ["127.0.0.1:1812","hostname.domain.com:1812"]

  ## Credentials for radius authentication.
  username = "myuser"
  password = "mypassword"
  secret = "mysecret"

  ## Request source server IP, normally the server running telegraf.
  ## This corresponds to Radius' NAS-IP-Address.
  # request_ip = "127.0.0.1"

  ## Maximum time to receive response.
  # response_timeout = "5s"
```

## Metrics

* radius
  * tags:
    * response\_code
    * source
    * source\_port

  * fields:
    * responsetime\_ms (int64)

## Example Output

```text
radius,response_code=Access-Accept,source=hostname.com,source_port=1812 responsetime_ms=311i 1677526200000000000
```