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FreeRADIUS collector

FreeRADIUS is a modular, high performance free RADIUS suite.

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


  • 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


All metrics have "freeradius." prefix.

authenticationglobalrequests, responsespackets/s
authentication_access_responsesglobalaccepts, rejects, challengespackets/s
bad_authenticationglobaldropped, duplicate, invalid, malformed, unknown-typespackets/s
proxy_authenticationglobalrequests, responsespackets/s
proxy_authentication_access_responsesglobalaccepts, rejects, challengespackets/s
proxy_bad_authenticationglobaldropped, duplicate, invalid, malformed, unknown-typespackets/s
accountingglobalrequests, responsespackets/s
bad_accountingglobaldropped, duplicate, invalid, malformed, unknown-typespackets/s
proxy_accountingglobalrequests, responsespackets/s
proxy_bad_accountingglobaldropped, duplicate, invalid, malformed, unknown-typespackets/s


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:

- name: local

- name: remote
secret: secret

For all available options please see module configuration file.


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

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