Solution

After I read the link above, I knew what to do. A non-secure authorization method (I’ve never heard of) was disabled.
I’ve edited the client’s smb.conf and added to the [global] part:

client lanman auth = yes

Then I’ve restarted samba on the client machine:

/etc/init.d/samba restart

But the command smbtree kept giving me an error:

smbtree
Password:
failed tcon_X with NT_STATUS_WRONG_PASSWORD
failed tcon_X with NT_STATUS_WRONG_PASSWORD


I’ve logged on to my server and checked the /var/log/samba/log.192.168.0.22 file, which is my client atm. And saw a lot of errors:


[2008/10/27 21:57:11, 0] smbd/map_username.c:map_username(107)
can't open username map /etc/samba/user.map. Error No such file or directory
[2008/10/27 21:57:11, 0] smbd/password.c:authorise_login(795)
authorise_login: rejected invalid user nobody

Now I knew, that I had to grant access to the user ‘nobody‘ in my /etc/samba/smb.conf in the [global] section:

.
.
comment = Server
path = /home/share
valid users = nobody, Gast, acme, Administrator, @users, @lpadmin
printer admin = @lpadmin
read only = No
guest ok = Yes
.
.

Then I’ve restarted samba on my server:

/etc/initd.d/samba restart

And finally the printer started to print the job I’ve sent him from my client machine!

Case closed.