How can i authenticate my users against Active Directory?

[Dusty Doris]

> See I am trying to authenticate against the AD, but in my case the RADIUS
> server is running on  a Windows Server and my client is a Linux box.  But
> the problem I am having is that when I try to authenticate against the AD
> from my Linux box I get error message in /var/log/messages
>
> login[4578]: pam_radius_auth: RADIUS server <Windows_Radius_Server
> IP_address> failed to respond
> login[4578]: pam_radius_auth: All RADIUS servers failed to respond.
>
> When I go check the log on the Radius server I can see the login attempts
> that are made from the Linux box.
>
> So I am not sure where else I can see what I am doing wrong here.
>

What does the radius server show in debug mode?

radiusd -X