Hi,
We are trying to test two-factor authentication using RADIUS server.
*Two-Factor Authentication:*
* First level authentication using username/password
* Second level authentication using the OTP
*RADIUS FLOW:*
*User* *NAS*
*RADIUS server*
Telnet/SSH to NAS
using Username & --------> ACCESS-REQUEST -----------> Authenticates
Username & password
password
Prompt the user
for OTP input <-------------------- <-----------------
ACCESS-CHALLENGE
User enters OTP --------> ACCESS-REQUEST ----------->
Authenticates OTP via external OTP verification script
User logs in
successfully <-------------------- <-----------------
ACCESS-ACCEPT
Could you please confirm whether this RADIUS flow (two-factor
authentication) is feasible using GNU RADIUS server for PAP & CHAP users.
--
Regards,
Rajeesh.R
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