Cisco validating identity error
A RADIUS client is usually referred to as a The RADIUS server receives user authentication requests and subsequently returns configuration information required for the client (in this case, the Cisco ASA) to support the specific service to the user.The RADIUS server does this by sending Internet Engineering Task Force (IETF) or vendor-specific attributes.The TACACS authentication concept is similar to RADIUS.
As previously mentioned, the authorization mechanism assembles a set of attributes that describes what the user is allowed to do within the network or service.
The server ultimately sends any of the following messages back to the NAS: After the authentication process is complete, if authorization is required the TACACS server proceeds with the authorization phase.
The user must first successfully be authenticated before proceeding to TACACS authorization.
The SDI solution uses small physical devices called that provide users with an OTP that changes every 60 seconds.
These OTPs are generated when a user enters a personal identification number and are synchronized with the server to provide the authentication service.