What are the most commonly used means to Authenticate web users f rom NT domains?

[James Sinnamon]

For those who may not have read my previous e-mail,  I am trying to set up
authentication on a Linux server
running apache in an NT network.

I am in the process of trying to set up either the  mod_auth_smb or else one
of the perl apache perl authentication 
modules,  Apache::AuthenSmb and Apache::AuthenN2

Would someone out there be able to tell me if any of these modules are the
most widely used means of setting up 
NT based authentication on Apache web servers, or is there something else
out there, which I may have missed? 

Thank you 

James Sinnamon