Im running xp pro one my PC, I aslo have a Fedora Core 4 PC setup running Samba as a PDC. But when I try to join my XP to the Samba PDC, I get "The following error occurred attemping to join to the domain "linux": Logon Failure: unknown user name or bad password"

I added root the smbpasswd file with smbpasswd -a root
here is my smb.conf file, I dont know where I am making the mistake, I have gotten my PC to join the domain before I redid the linux box. I also created the group "network" for the samba logins.

[global]
workgroup = linux
encrypt passwords = yes
netbios name = fedora
time server = yes
domain logons = yes
os level = 65
local master = yes
preferred master = yes
domain master = yes
security = user
wins support = yes
domain admin users = root
socket options = TCP_NODELAY IPTOS_LOWDELAY SO_SNDBUF=8192 SO_RCVBUF=8192

# Add machine script
add machine script = /usr/sbin/useradd -d /dev/null -g network -s /bin/false -M %u

[homes]
read only = no
browseable = no
create mask = 0600
directory mask = 0700

[netlogon]
path = /home/samba/netlogon
public = yes

[profiles]
path = /home/samba/profiles
read only = no
create mask = 0600
directory mask = 0700

Can you point me to where I am making the mistake??
I tried adding the machine manually and commented out the script, but same error.

I'm not good with Samba or linux domains (thinking about it, I last used Samba 3yrs ago!); Here's a few guides I found, maybe it can shed some more light on the issue:

http://www.freeos.com/articles/3842/
http://www.linux.com/howtos/Domain.shtml#toc2

Good luck, and post back if you have success

Jim

Can't give you a link but have a nagging memory of threads where changes to the PDC required extensive work deleteing XP registry entries in order to start fresh.
In other words, think your problem is on XP side and that you had it working once.
ppd

I probably think this has to do something to the nscd service. try service nscd restart