Securing Web access from internet

[Bob Freeman <cm94 () hotmail com>]

Hi everyone,

We have a web application on our LAN (based on IIS) and we want to make 
this web application available from the internet for specific 
users/workstation.

1)I want to make sure that these users/workstation are authenticated 
BEFORE accessing the local network.

2)I want to make sure that the information transiting on the public 
network is encrypted

3)I would prefer to not have anything to install on the remote 
workstations (if possible)

4)I don't want a VPN solution.

I don't know much about the product I need but I suppose it would be a 
kind of web relay/authentication server installed in our DMZ. 

Do you have product to propose?

Thanks

Bob Freeman

---------------------------------------------------------------------------
----------------------------------------------------------------------------