Tacacs Input Plugin

This plugin collects metrics on Terminal Access Controller Access Control System authentication requests like response status and response time from servers such as Aruba ClearPass, FreeRADIUS or TACACS+.

The plugin is primarily meant to monitor how long it takes for the server to fully handle an authentication request, including all potential dependent calls (for example to AD servers, or other sources of truth).

Introduced in: Telegraf v1.28.0 Tags: network OS support: all

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 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 for more details on how to use them.

Configuration

# Tacacs plugin collects successful tacacs authentication response times.
[[inputs.tacacs]]
  ## An array of Server IPs (or hostnames) and ports to gather from. If none specified, defaults to localhost.
  # servers = ["127.0.0.1:49"]

  ## Request source server IP, normally the server running telegraf.
  # request_ip = "127.0.0.1"

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

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

Metrics

• tacacs
  • tags:
    • source
  • fields:
    • response_status (string, see below
    • responsetime_ms (int64 see below | tacacs server | real value | Timeout | Timeout | telegraf | eq. to response_timeout

field responsetime_ms

The field responsetime_ms is response time of the tacacs server in milliseconds of the furthest achieved stage of auth. In case of timeout, its filled by telegraf to be the value of the configured response_timeout.

Example Output

tacacs,source=127.0.0.1:49 responsetime_ms=311i,response_status="AuthenStatusPass" 1677526200000000000