[Samba] set up for Active Directory

[McGranahan, Jamen]

After doing some digging, I did discovered the libnss_winbind.so library
was not installed for some reason, so I copied it from my samba source
and placed it in the directory described here
(http://docs.sun.com/app/docs/doc/819-1081/6n3fc3r2v?a=view). I also
discovered the pid file in /var/samba/locks/winbindd.pid was not the
correct pid, so I just rm it and created a softlink to the actual file
(which was in /usr/local/samba/var/locks/). I restarted winbindd and
voila!, it's now running as a service. I'm now getting entries with
wbinfo -u and wbinfo -g. The next test is getent, which right now isn't
generating anything. This might be a firewall issue, so we're checking
with our ITS department with that. 

Jamen McGranahan
Systems Services Librarian
Vanderbilt University