I just installed a Fedora Core 3, kernel 2.6 (actually 2.6.9-2.667, but
hell, who's counting?)
I am now completely unable to use samba.

Previously, with the 2.4 kernel, after carefully configuring the
smb.conf file, I joined the Windows active directory domain by saying:

smbpasswd -j<DOMAIN_NAME> -r<SERVER-NAME> -Uadministrator

the 2.4 kernel responded by asking for the admin password, and then it
graciously gave all the allowed windows workstations access to the
files on the Linux system as if they were on the PDC

With the 2.6 kernel, smbpasswd no longer has the -j option.

So how does one make the Linux box join the Windows domain????

I have studied the net command, and experimented around with numerous
suggestions found on the web, all to no avail.

I have surfed the web to no avail, so I once again humbly beseech you
all for wisdom about this new tribulation.

Happy Holidays.
- Frank