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angela.gavazzi@goetheanum.ch

2004-May-03 09:59 UTC

[Samba] Changed UIDs from winbind after server reboot!

I set up a samba 3.0.2 server as member server in a NT4 Domain.
Winbind works great and I can "use" the NT Domain users for all I
need.
At the moment I'm testing different shares with their permissions.
The Samba will also be our printserver, so I set up also cups and added
the printers to samba with cupsaddsmb - Great tool! . Users could
connect and all worked fine.

After a reboot I had to do after adding a kernel option (RTC),
suddenly the test user told me that they could 
no longer connect to the shares and the printers.
When looking I found out, that all permissions where changed.
The first time I thought I did a big mistake because
working too long in the night. :-)
2 Days later I rebooted the server again - and had the same thing.
Alls permissions where changed.

I tested stopping samba and winbind - nothing strage happened.
Then I rebooted the server again - and a lot of UID changed again.

Did I missunderstood completely the function of winbind or is
there something wrong here?


Here a little more infos to the system 

Let me know if other infos are needed.

Tia Angela

woody 3 with actual sec. patches
samba 3.0.2 from backports
here's the smb.conf

[global]

workgroup = AAG
netbios name = S10amba
security = domain
encrypt passwords = yes
password server = 192.168.100.31
wins server = 192.168.100.30
host msdfs = yes
#################################

#template shell = /bin/false
#template homedir = /work/home/%u    
max mux = 200
max open files = 8000

###############################################################
# Umgang mit Daten
###############################################################
display charset = ISO8859-1
unix charset = ISO8859-1
dos charset = CP850

#username level = 5
case sensitive = no
Preserve case = yes

log file = /var/log/samba/log.smbd.%m
log level = 1

follow symlinks = yes
################################################################
#Diverse Einstellungen f?r DOS und Win
###############################################################
map archive = yes
map system = no
map hidden = no

###############################################################
# Globale Druckeinstellungen
###############################################################

load printers = yes
printing = cups
printcap name = cups


#schreibgesch?tzte Dateien d?rfen gel?scht werden
delete readonly = yes

#Samba als Zeitserver; hauptsache es sind mal alle Uhren gleich....
time server = yes
dos filetimes = yes
fake directory create times = yes
dos filetime resolution = yes

# sichert die Integrit?t der Dateien gegen Verlust von Performance
; Am heikelsten sind Datenbankdateien also nur diese ohne oplocks
; und zwar f?r alle Verzeichnisse
veto oplock files = /*.mdb/*.dbf/

deadtime = 5

# Die folgenden Punkte m?ssen auf yes gestellt werden, wenn Samba
; als PDC fungieren soll.

os level = 20

local master = yes
preferred master = no
domain master = no
wins support = no
domain logons = no
winbind separator = +

# Benutze uids von 10000-20000 f?r Dom?nenbenutzer
winbind uid = 10000-20000

# Benutze gids von 10000-20000 f?r Dom?nengruppen
winbind gid = 10000-20000

# Erlaube enumeration von winbind user und gruppen
winbind enum users = yes
winbind enum groups = yes

name resolve order = wins hosts lmhosts bcast

############################################################
# Sicherheitseinstellungen
############################################################

hosts allow = 127.0.0.1 192.168.100.0/24
hosts deny = 0.0.0.0/0

[IPC$]
path = /tmp
hosts allow = 127.0.0.1 192.168.100.0/24
hosts deny = 0.0.0.0/0
#############################################################
#Drucker
#############################################################

[print$]
comment = Download Drucker Treiber
path = /work/printerdrivers
browseable = yes
guest ok = no
public = yes
read only = yes
write list = AAG+Dom?nen-Admins, root, AAG+Administrator

[printers]
path = /var/spool/samba
browseable = yes
public = yes
guest ok = no
writable = no
printable = yes
printer admin = AAG+Dom?nen-Admins, root, AAG+Administrator
write list = AAG+Dom?nen-Admins, root, AAG+Administrator
[AAG-Daten]

        path = /work/dfs
        msdfs root = yes
        browseable = yes
        writeable = yes
        valid users =@AAG+Dom?nen-Benutzer

[AV]
        path=/work/aag/edv/AV
        Valid users = AAG+HHA @AAG+Dom?nen-Admins
        write list = AAG+ HHA @AAG+Dom?nen-Admins

[EDV] 
        path = /work/aag/edv
        browseable = yes
        valid users = AAG+Dom?nen-Admins
        write list = AAG+Dom?nen-Admins
        admin users = AAG+Dom?nen-Admins

        # ACL Einstellungen
        nt acl support = yes
        inherit acl = yes
        create mask = 770
        directory mask = 770
        Security mask = 770
        directory security mask  = 0777

        force security mode = 0000
        force directory security mode = 0000
        force group = AAG+Dom?nen-Admins
        force create mode = 0770
        force directory mode = 770
        force security mode = 0440
        force directory security mode = 0440
[Wochenschrift]
        path = /work/aag/wosch
        browseable = yes
        valid users = AAG+Dom?nen-Admins AAG+AdminWochensch
        write list = AAG+Dom?nen-Admins AAG+AdminWochensch
        admin users = AAG+Dom?nen-Admins AAG+AdminWochensch

        # ACL Einstellungen
        nt acl support = yes
        inherit acl = yes
        create mask = 770
        directory mask = 770
        Security mask = 770
        directory security mask  = 0777

        force security mode = 0000
        force directory security mode = 0000
        force group = AAG+AdminWochensch
        force create mode = 0770
        force directory mode = 770
        force security mode = 0440
        force directory security mode = 0440

[homes]
        comment=Pers?nliches Verzeichenis von %S
        path=/work/aag/users/%u
        #valid users = %u AAG+Administrator 
        #force user=%u 
        writeable = yes
        browseable = no

Herb Lewis

2004-May-03 16:14 UTC

head link

[Samba] Changed UIDs from winbind after server reboot!

Sounds like your idmap file is being removed on reboot.
run testparm -sv | grep directory
and see where the lock directory is located. Make sure
the file winbindd_idmap.tdb in this directory is not
getting removed somehow on reboot. Check your winbindd
log file to see if there are errors there.

angela.gavazzi@goetheanum.ch wrote:> I set up a samba 3.0.2 server as member server in a NT4 Domain.
> Winbind works great and I can "use" the NT Domain users for all I
need.
> At the moment I'm testing different shares with their permissions.
> The Samba will also be our printserver, so I set up also cups and added
> the printers to samba with cupsaddsmb - Great tool! . Users could
> connect and all worked fine.
> 
> After a reboot I had to do after adding a kernel option (RTC),
> suddenly the test user told me that they could 
> no longer connect to the shares and the printers.
> When looking I found out, that all permissions where changed.
> The first time I thought I did a big mistake because
> working too long in the night. :-)
> 2 Days later I rebooted the server again - and had the same thing.
> Alls permissions where changed.
> 
> I tested stopping samba and winbind - nothing strage happened.
> Then I rebooted the server again - and a lot of UID changed again.
> 
> Did I missunderstood completely the function of winbind or is
> there something wrong here?
> 
>

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