FreeRADIUS collector

FreeRADIUS is a modular, high performance free RADIUS suite.

This module will monitor one or more FreeRADIUS servers, depending on your configuration.

Requirements

• FreeRADIUS with enabled status feature.

The configuration for the status server is automatically created in the sites-available directory. By default, server is enabled and can be queried from every client.

To enable status feature do the following:

• cd sites-enabled
• ln -s ../sites-available/status status
• restart FreeRADIUS server

Metrics

All metrics have "freeradius." prefix.

Metric	Scope	Dimensions	Units
authentication	global	requests, responses	packets/s
authentication_access_responses	global	accepts, rejects, challenges	packets/s
bad_authentication	global	dropped, duplicate, invalid, malformed, unknown-types	packets/s
proxy_authentication	global	requests, responses	packets/s
proxy_authentication_access_responses	global	accepts, rejects, challenges	packets/s
proxy_bad_authentication	global	dropped, duplicate, invalid, malformed, unknown-types	packets/s
accounting	global	requests, responses	packets/s
bad_accounting	global	dropped, duplicate, invalid, malformed, unknown-types	packets/s
proxy_accounting	global	requests, responses	packets/s
proxy_bad_accounting	global	dropped, duplicate, invalid, malformed, unknown-types	packets/s

Configuration

Edit the go.d/freeradius.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/freeradius.conf

Here is an example for 2 servers:

jobs:
  - name: local
    host: 127.0.0.1

  - name: remote
    host: 203.0.113.10
    secret: secret 

For all available options please see module configuration file.

Troubleshooting

To troubleshoot issues with the freeradius collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

• Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

  cd /usr/libexec/netdata/plugins.d/

• Switch to the netdata user.

  sudo -u netdata -s

• Run the go.d.plugin to debug the collector:

  ./go.d.plugin -d -m freeradius