I'm trying to get my linux box to use active directory authentication. I believe I have almost everything setup correctly. I'm able to issue wbinfo -g and wbinfo -u and see all the groups and users respectively.

Brief intro to my setup:

The username I use on my linux box to do admin things is nick. My active directory username is nwalke. They have two different passwords. I am able to log in to the box with nick and that user's password and I'm also able to login as nwalke with nwalke's password.

The curious bit:

Upon creating the active directory user's home directory, I run a script that requires root access. This is to setup some system wide things like a samba share for them. When I log in as nwalke, I enter my nwalke password and it succeeds. I'm then greeted with [sudo] password for nick:. If I enter my nwalke password here, it says Sorry, try again.. If I enter nick's password, it says Sorry, user nick is not allowed to execute scriptname as root.

If I do groups as nwalke, I see that magically my user has been given the group nick.

Now, I accidentally thought that nick had a UID of 100, not 1000. So originally in my smb.conf I had idmap uid 1000-10000. The only thing I can think of, is that I logged in with nwalke while that was still set and now I'm just being presented with a UID of 1000 forcing linux to think I'm nick.

I'm not really sure where to go from here. Like I said, I'm fairly certain active directory is communicating with my server properly, but something must not be mapped right on the linux side.

Any thoughts?

Here is my smb.conf:

[global]
    security = ads
    netbios name = hostname
    realm = COMPANY.COM
    password server = adshost.company.com
    workgroup = COMPANY
    idmap uid = 10000-90000
    idmap gid = 10000-90000
    winbind separator = +
    winbind enum users = no
    winbind enum groups = no
    winbind use default domain = yes
    template homedir = /home/%D/%U
    template shell = /bin/bash
    client use spnego = yes
    domain master = no
    load printers = no
    printing = bsd
    printcap name = /dev/null
    disable spoolss = yes

Let me know if more information about something is required.