[Samba] Domain Authentication Problem

Bradish, Jeff jeff.bradish at eds.com
Thu Mar 16 16:26:44 GMT 2006


One correction to my original email; I am running Solaris 9 rather than Solaris 8 (typo).

Following are my smb.conf settings:
[global]
        workgroup = AMER
        netbios name = USAHSSMC001
        netbios aliases = USAHSSMC001
        server string = EDS GSCO
        security = DOMAIN
        encrypt passwords = Yes
        password server = usahd100 uspld100 usahd101 usahd102 usahd103 usahd104
        username map = /etc/samba/username.map
        log level = 4
        preferred master = No
        local master = No
        domain master = No
        dns proxy = No
        create mask = 0664
        name resolve order = lmhosts

My issue is: Everything was fine until the AD domain controllers were "upgraded" to Windows Server 2003 SP1. User authentication would no longer function until I pointed the password server entry to domain controllers that have not been upgraded to SP1.

I upgraded to Samba 3.0.21c, downloaded the pre-compiled version for Solaris 9 and installed with no problems. At this point, I cannot get Samba 3.0.21c to be recognized by either Windows Server 2003 or Windows Server 2003 SP1. I have tried rejoining the domain with no success.

Samba log entries:
cli_nt_create failed on pipe \NETLOGON to machine <name>.  Error was NT_STATUS_ACCESS_DENIED
failed to get schannel session key from server <name> for domain <domainname>.
domain_client_validate: Domain password server not available
check_ntlm_password:  Authentication for user [id] -> [id] FAILED with error NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE

At this point, I can not get domain security to function for either Samba version when pointed to a Windows Server 2003 SP1 AD controller.

Any help with this situation would be appreciated.

Jeff Bradish
* mailto: jeff.bradish at eds.com

-----Original Message-----
From: samba-bounces+jeff.bradish=eds.com at lists.samba.org [mailto:samba-bounces+jeff.bradish=eds.com at lists.samba.org] On Behalf Of Craig White
Sent: Thursday, March 16, 2006 10:58 AM
To: samba at lists.samba.org
Subject: RE: [Samba] Domain Authentication Problem

On Thu, 2006-03-16 at 16:16 +0100, Johannes Michler wrote:
> I've got similar Problems:
> When I try to connect to our samba server I get an "Die Anforderung 
> wird nicht unterstützt" Error Message.
> >From our other Machines (even some Win2k3 Servers) I can access the 
> >Files,
> what could be wrong?
> 
> The samba server has the following conf-file:
> 
> # This is the main Samba configuration file. You should read the # 
> smb.conf(5) manual page in order to understand the options listed # 
> here. Samba has a huge number of configurable options (perhaps too # 
> many!) most of which are not shown in this example # # Any line which 
> starts with a ; (semi-colon) or a # (hash) # is a comment and is 
> ignored. In this example we will use a # # for commentry and a ; for 
> parts of the config file that you # may wish to enable # # NOTE: 
> Whenever you modify this file you should run the command "testparm"
> # to check that you have not many any basic syntactic errors.
> #
> #======================= Global Settings 
> =====================================
> [global]
> 
> # workgroup = NT-Domain-Name or Workgroup-Name, eg: REDHAT4
>    workgroup = FZI
> 
> # Unter welchem Namen soll der Server sichtbar sein - vorzugsweise 
> gleich dem DNS-Namen
>    netbios name = goedel
> 
> # server string is the equivalent of the NT Description field
>    server string = SWT Samba Server
> 
> # This option is important for security. It allows you to restrict # 
> connections to machines which are on your local network. The # 
> following example restricts access to two C class networks and # the 
> "loopback" interface. For more examples of the syntax see # the 
> smb.conf man page
> ;   hosts allow = 192.168.1. 192.168.2. 127.
>    hosts allow = ############  127.
> 
> 
> # If you want to automatically load your printer list rather # than 
> setting them up individually then you'll need this
>    load printers = yes
> 
> # you may wish to override the location of the printcap file
> ;   printcap name = /etc/printcap
> 
> # on SystemV system setting printcap name to lpstat should allow # you 
> to automatically obtain a printer list from the SystemV spool # system
> ;   printcap name = lpstat
> 
> # It should not be necessary to specify the print system type unless # 
> it is non-standard. Currently supported print systems include:
> # bsd, sysv, plp, lprng, aix, hpux, qnx
> ;   printing = bsd
> 
> # Uncomment this if you want a guest account, you must add this to 
> /etc/passwd # otherwise the user "nobody" is used ;  guest account = 
> pcguest
> 
> # this tells Samba to use a separate log file for each machine # that 
> connects
> ;   log file = /usr/sfw/lib/smb.conf.%m
> ;   log file =/var/samba/log/%m.log
>    log file =/var/samba/log/smbd.log
> 
> # Put a capping on the size of the log files (in Kb).
>    max log size = 100
> 
> 
> 
>         security = server
>         password server = ad
>         encrypt passwords = yes
>         os level = 1
> 
> # starke Verschluesselung fuer eingehende Verbindungen
> ;   server NTLMv2 = auto
> 
> # starke Verschluesselung fuer ausgehende Verbindungen ;  client 
> NTLMv2 = auto
> 
> # Gastzugriffe laufen unter diesem Account
>    guest account = nobody
> 
> # Unbekannte Benutzer werden als Gast behandelt
>    map to guest = Bad User
> 
> # Samba versucht nicht, Masterbrowser zu werden
>    local master = no
> 
> 
> 
> 
> # Security mode. Most people will want user level security. See # 
> security_level.txt for details.
> ;   security = user
> 
> # Use password server option only with security = server # The 
> argument list may include:
> #   password server = My_PDC_Name [My_BDC_Name] [My_Next_BDC_Name]
> # or to auto-locate the domain controller/s
> #   password server = *
> ;   password server = <NT-Server-Name>
> 
> # Note: Do NOT use the now deprecated option of "domain controller"
> # This option is no longer implemented.
> 
> # You may wish to use password encryption. Please read # 
> ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba documentation.
> # Do not enable this option unless you have read those documents ;  
> encrypt passwords = yes
> 
> # Using the following line enables you to customise your configuration 
> # on a per machine basis. The %m gets replaced with the netbios name # 
> of the machine that is connecting
> ;    include = /var/samba/log.%m
> 
> # Most people will find that this option gives better performance.
> # See speed.txt and the manual pages for details # You may want to add 
> the following on a Linux system:
> #         SO_RCVBUF=8192 SO_SNDBUF=8192
>    socket options = TCP_NODELAY
> 
> # Configure Samba to use multiple interfaces # If you have multiple 
> network interfaces then you must list them # here. See the man page 
> for details.
> ;   interfaces = 192.168.12.2/24 192.168.13.2/24
> 
> # Browser Control Options:
> # set local master to no if you don't want Samba to become a master # 
> browser on your network. Otherwise the normal election rules apply
> ;   local master = no
> 
> # OS Level determines the precedence of this server in master browser 
> # elections. The default value should be reasonable
> ;   os level = 33
> 
> # Domain Master specifies Samba to be the Domain Master Browser. This 
> # allows Samba to collate browse lists between subnets. Don't use this 
> # if you already have a Windows NT domain controller doing this job
> ;   domain master = yes
> 
> # Preferred Master causes Samba to force a local browser election on 
> startup # and gives it a slightly higher chance of winning the election
> ;   preferred master = yes
> 
> # Enable this if you want Samba to be a domain logon server for # 
> Windows95 workstations.
> ;   domain logons = yes
> 
> # if you enable domain logons then you may want a per-machine or # per 
> user logon script # run a specific logon batch file per workstation 
> (machine)
> ;   logon script = %m.bat
> # run a specific logon batch file per username
> ;   logon script = %U.bat
> 
> # Where to store roving profiles (only for Win95 and WinNT)
> #        %L substitutes for this servers netbios name, %U is username
> #        You must uncomment the [Profiles] share below
> ;   logon path = \\%L\Profiles\%U
> 
> # Windows Internet Name Serving Support Section:
> # WINS Support - Tells the NMBD component of Samba to enable it's WINS 
> Server
> ;   wins support = yes
> 
> # WINS Server - Tells the NMBD components of Samba to be a WINS Client
> #       Note: Samba can be either a WINS Server, or a WINS Client, but NOT
> both
> ;   wins server = w.x.y.z
>         wins server = ############
> 
> # WINS Proxy - Tells Samba to answer name resolution queries on # 
> behalf of a non WINS capable client, for this to work there must be # 
> at least one  WINS Server on the network. The default is NO.
> ;   wins proxy = yes
> 
> # DNS Proxy - tells Samba whether or not to try to resolve NetBIOS 
> names # via DNS nslookups. The built-in default for versions 1.9.17 is 
> yes, # this has been changed in version 1.9.18 to no.
>    dns proxy = yes
> 
> # Case Preservation can be handy - system default is _no_ # NOTE: 
> These can be set on a per share basis
>    preserve case = yes
>    short preserve case = yes
> # Default case is normally upper case for all DOS files ;  default 
> case = lower # Be very careful with case sensitivity - it can break 
> things!
>    case sensitive = no
> ;   mangle case = no
> 
>    force create mode = 644
>    force directory mode = 755
>    map archive = no
> 
> #============================ Share Definitions 
> ============================== [homes]
>    comment = UNIX Home Directories
>    browseable = yes
>    writable = yes
>    invalid users = root
> 
> [fzi]
>    comment = FZI NFS-Wurzel
>    path = /fzi
>    writable = true
> 
> 
> [public]
>    comment = Public Stuff
>    path = /export/home/samba
>    public = yes
>    browseable = yes
>    writable = yes
>    printable = no
>    write list = @swt @rud @dtp
> 

----
It would help if you don't include all of the unnecessary stuff (especially comments)...

testparm -s > /tmp/samba-config.txt # would be better

your usage of 

security = server
password server = ad

doesn't seem correct.

is ad a netbios name?

are you sure you want to use security = server and not security = ADS ?

at least you should make sure that 'password server = WHATEVER' has WHATEVER either an ip address or a resolvable domain controller.

see 'man smb.conf'

Craig

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