Radius PAM Authentication

[Todd Walker]

All,

I am trying to get a Linux system to authenticate using the 
pam_raduis_so module.  What I have found is that authentication will 
only work if there is a entry for the user in passwd file.  My guess is 
that this is due to the fact that users that are authenticating via 
radius do not have a uid or gid set.  Is there a way to make this work 
short of adding each user to the passwd file? 

I suppose a larger question is if I am approaching this correctly.  
Basically I would like to have Linux boxes authenticate source of some 
type (radius perferred but could be TACACS+ or LDAP) with a minimal 
amount of administration required locally.

Regards,
Todd