Access Challenge in freeRadius server

[Ivan Kalik]

> I am trying to authorize the ssh and telnet login users of my Redhat Linux
> machine using freeRadius server.
>
> I am able to test Access-Accept and Access-Reject with right and wrong
> credentials respectively by configuring the file '/etc/pam.d/sshd' with
> entry pam_radius_auth.so.
>
> But I do not know how to achieve and test the Access-Challenge concept.

Do you need to? ssh and telnet supplicants tend not to use protocols with
challenge-response exchange.

> I
> mean what type of input will result in Access Challenge (I know it happens
> when we provide partial login information but not sure how to achieve with
> login in real time)?

Send an eap request (eapol_test).

Ivan Kalik
Kalik Informatika ISP