# Radius Input Plugin

This plugin collects response times for [Radius][rfc2865] authentication
requests.

⭐ Telegraf v1.26.0
🏷️ server
💻 all

[rfc2865]: https://datatracker.ietf.org/doc/html/rfc2865

## Global configuration options <!-- @/docs/includes/plugin_config.md -->

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][CONFIGURATION.md] for more details.

[CONFIGURATION.md]: ../../../docs/CONFIGURATION.md#plugins

## Secret-store support

This plugin supports secrets from secret-stores for the `username`, `password`
and `secret` option. See the
[secret-store documentation][SECRETSTORE] for more details on how to use them.

[SECRETSTORE]: ../../../docs/CONFIGURATION.md#secret-store-secrets

## Configuration

```toml @sample.conf
[[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
```