https://upgrade.yubico.com/getapikey/

Email: srohr1805@gmail.com
Yubikey: <NFC Yubikey used>

Congratulations!
Please find below your client identity and client API key.

Client ID:	115201
Secret key:	HQM+lDbHpaYs/MJ6vYz6+DG0OTo=
Be sure to protect the secret. If you need to generate more client id/keys for your different applications, please come back.

Note that it may take up until 5 minutes until all validation servers know about your newly generated client.

apt update && apt upgrade

apt install freeradius freeradius-yubikey rsyslog vim

In /etc/freeradius/3.0/clients.conf find client localhost and add a new section above, describing the host or subnet which is allowed to query the radius server. This is usually the IP address or subnet of the Interface of the firewall.

<code> client NET-192.168_16 {

      ipaddr          = 192.168.0.0/16
      secret          = Secre7Passw0rd

}

client localhost { … <code>