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Andrew Masterson

2008-Jul-23 16:32 UTC

[Samba] Trouble authenticating to Samba shares with Win 2k3 ADS

I may have a deficiency in understanding the procedure for ADS
authentication with samba, but most of the server setup works so far.  I
have bound a Red Hat Enterprise 5 server to our windows domain, it shows
up in DNS and ADS, I can ping it, but I can't get samba shares to be
accessible to users, or even get the smbclient to return shares
properly.

 

wbinfo -g returns the domain groups properly

wbinfo -u return the domain users properly

 

[root@solar samba]# wbinfo -a 'DNAME\uname'%secret 

plaintext password authentication succeeded

challenge/response password authentication succeeded

 

[root@solar samba]# wbinfo -K 'DNAME\uname'%secret 

plaintext kerberos password authentication for [DNAME\uname%secret]
succeeded (requesting cctype: FILE)

credentials were put in: FILE:/tmp/krb5cc_0

 

[root@solar samba]# wbinfo -t

checking the trust secret via RPC calls succeeded

 

So that all works fine.  smbclient chokes though:

 

[root@solar samba]# smbclient -L solar -U 'DNAME\uname'

Password:

session setup failed: NT_STATUS_LOGON_FAILURE

 

[root@solar samba]# smbclient -L solar -U uname

Password:

session setup failed: NT_STATUS_LOGON_FAILURE

 

or if I even use a samba user that I have setup with smbpasswd

 

[root@solar samba]# smbclient -L solar -U sambaname

Password:

session setup failed: NT_STATUS_LOGON_FAILURE

 

The only log file in /var/log/samba that shows any changes is log.nmbd

 

[2008/07/23 08:18:47, 0] nmbd/nmbd_namequery.c:query_name_response(109)

  query_name_response: Multiple (2) responses received for a query on
subnet 192.168.77.244 for name DNAME<1d>.

  This response was from IP 192.168.77.216, reporting an IP address of
192.168.77.216.

 

Here is my smb.conf

 

# Samba config file created using SWAT

# from 127.0.0.1 (127.0.0.1)

# Date: 2008/07/17 09:25:15

 

[global]

   workgroup = DNAME

   realm = DNAME.LOCAL

   netbios aliases = solar.dname.local, solar.dname.com

   server string = Samba %v %h

   interfaces = 192.168.77.244

   security = ADS

#  security = user

   auth methods = winbind

   use kerberos keytab = Yes

   encrypt passwords = yes

   winbind enum users = Yes

   winbind enum groups = Yes

   preferred master = No

   local master = No

   domain master = No

   ldap ssl = no

   idmap domains = DNAME

   idmap uid = 10000-20000

   idmap gid = 10000-20000

 

[T_drive]

   writeable = yes

   valid users = sambaname,'DNAME\uname'

   public = yes

   path = /data/T_drive

 

Here is krb5.conf

 

[logging]

default = FILE:/var/log/krb5libs.log

kdc = FILE:/var/log/krb5kdc.log

admin_server = FILE:/var/log/kadmind.log

 

[libdefaults]

default_realm = DNAME.LOCAL

 

[realms]

DNAME.LOCAL = {

   default_domain 
   kdc = nvautil01.DNAME.local:

   admin_server = nvadom01:

}

 

[domain_realm]

dname.local = DNAME.LOCAL

 

pam.d directory samba file

 

[root@solar samba]# more /etc/pam.d/samba

#%PAM-1.0

auth    sufficient      pam_krb5afs.so

account sufficient      pam_krb5afs.so

auth    sufficient      pam_winbind.so

account sufficient      pam_winbind.so

session sufficient      pam_krb5afs.so

password       sufficient  pam_krb5afs.so

auth     required       pam_unix.so

account  required       pam_unix.so

session sufficient      pam_winbind.so

password       sufficient  pam_winbind.so

Jason Gerfen

2008-Jul-23 16:53 UTC

head link

[Samba] Trouble authenticating to Samba shares with Win 2k3 ADS

Try using the following in your smb.conf

client signing = yes
client schannel = no
client use spnego = yes
client lanman auth = no
client NTLMv2 auth = yes
client plaintext auth = no

idmap domains = DOMAIN
idmap config DOMAIN:backend = ad
idmap config DOMAIN:default = yes
idmap config DOMAIN:schema_mode = rfc2307
idmap config DOMAIN:range = 1000 - 300000000

And for troubleshooting try taking a look at the 
/var/log/samba/log.idmap* logs for UID/GID to SID mapping

Or you can use
%> wbinfo -i <USER>
%> wbinfo -n <USER>
%> wbinfo -s <USER>

Hope that helps some.

Andrew Masterson wrote:> I may have a deficiency in understanding the procedure for ADS
> authentication with samba, but most of the server setup works so far.  I
> have bound a Red Hat Enterprise 5 server to our windows domain, it shows
> up in DNS and ADS, I can ping it, but I can't get samba shares to be
> accessible to users, or even get the smbclient to return shares
> properly.
> 
>  
> 
> wbinfo -g returns the domain groups properly
> 
> wbinfo -u return the domain users properly
> 
>  
> 
> [root@solar samba]# wbinfo -a 'DNAME\uname'%secret 
> 
> plaintext password authentication succeeded
> 
> challenge/response password authentication succeeded
> 
>  
> 
> [root@solar samba]# wbinfo -K 'DNAME\uname'%secret 
> 
> plaintext kerberos password authentication for [DNAME\uname%secret]
> succeeded (requesting cctype: FILE)
> 
> credentials were put in: FILE:/tmp/krb5cc_0
> 
>  
> 
> [root@solar samba]# wbinfo -t
> 
> checking the trust secret via RPC calls succeeded
> 
>  
> 
> So that all works fine.  smbclient chokes though:
> 
>  
> 
> [root@solar samba]# smbclient -L solar -U 'DNAME\uname'
> 
> Password:
> 
> session setup failed: NT_STATUS_LOGON_FAILURE
> 
>  
> 
> [root@solar samba]# smbclient -L solar -U uname
> 
> Password:
> 
> session setup failed: NT_STATUS_LOGON_FAILURE
> 
>  
> 
> or if I even use a samba user that I have setup with smbpasswd
> 
>  
> 
> [root@solar samba]# smbclient -L solar -U sambaname
> 
> Password:
> 
> session setup failed: NT_STATUS_LOGON_FAILURE
> 
>  
> 
> The only log file in /var/log/samba that shows any changes is log.nmbd
> 
>  
> 
> [2008/07/23 08:18:47, 0] nmbd/nmbd_namequery.c:query_name_response(109)
> 
>   query_name_response: Multiple (2) responses received for a query on
> subnet 192.168.77.244 for name DNAME<1d>.
> 
>   This response was from IP 192.168.77.216, reporting an IP address of
> 192.168.77.216.
> 
>  
> 
> Here is my smb.conf
> 
>  
> 
> # Samba config file created using SWAT
> 
> # from 127.0.0.1 (127.0.0.1)
> 
> # Date: 2008/07/17 09:25:15
> 
>  
> 
> [global]
> 
>    workgroup = DNAME
> 
>    realm = DNAME.LOCAL
> 
>    netbios aliases = solar.dname.local, solar.dname.com
> 
>    server string = Samba %v %h
> 
>    interfaces = 192.168.77.244
> 
>    security = ADS
> 
> #  security = user
> 
>    auth methods = winbind
> 
>    use kerberos keytab = Yes
> 
>    encrypt passwords = yes
> 
>    winbind enum users = Yes
> 
>    winbind enum groups = Yes
> 
>    preferred master = No
> 
>    local master = No
> 
>    domain master = No
> 
>    ldap ssl = no
> 
>    idmap domains = DNAME
> 
>    idmap uid = 10000-20000
> 
>    idmap gid = 10000-20000
> 
>  
> 
> [T_drive]
> 
>    writeable = yes
> 
>    valid users = sambaname,'DNAME\uname'
> 
>    public = yes
> 
>    path = /data/T_drive
> 
>  
> 
> Here is krb5.conf
> 
>  
> 
> [logging]
> 
> default = FILE:/var/log/krb5libs.log
> 
> kdc = FILE:/var/log/krb5kdc.log
> 
> admin_server = FILE:/var/log/kadmind.log
> 
>  
> 
> [libdefaults]
> 
> default_realm = DNAME.LOCAL
> 
>  
> 
> [realms]
> 
> DNAME.LOCAL = {
> 
>    default_domain > 
>    kdc = nvautil01.DNAME.local:
> 
>    admin_server = nvadom01:
> 
> }
> 
>  
> 
> [domain_realm]
> 
> dname.local = DNAME.LOCAL
> 
>  
> 
> pam.d directory samba file
> 
>  
> 
> [root@solar samba]# more /etc/pam.d/samba
> 
> #%PAM-1.0
> 
> auth    sufficient      pam_krb5afs.so
> 
> account sufficient      pam_krb5afs.so
> 
> auth    sufficient      pam_winbind.so
> 
> account sufficient      pam_winbind.so
> 
> session sufficient      pam_krb5afs.so
> 
> password       sufficient  pam_krb5afs.so
> 
> auth     required       pam_unix.so
> 
> account  required       pam_unix.so
> 
> session sufficient      pam_winbind.so
> 
> password       sufficient  pam_winbind.so
> 

-- 
Jas

Andreas Ladanyi

2008-Jul-23 18:48 UTC

head link

[Samba] Re: Trouble authenticating to Samba shares with Win 2k3 ADS

Hay Andrew,

i read you use "idmap backend = ad".

Did you install the AD schemata addon for POSIX data. For example MS SFU 
or AD4UNIX ?

in our environment we installed MS SFU 3.5. This is a part of the 2003 
R2 server Installation, but you have set a tick in "windows 
compenent7software setup" to install it.

Bye, Andy

> I may have a deficiency in understanding the procedure for ADS
> authentication with samba, but most of the server setup works so far.  I
> have bound a Red Hat Enterprise 5 server to our windows domain, it shows
> up in DNS and ADS, I can ping it, but I can't get samba shares to be
> accessible to users, or even get the smbclient to return shares
> properly.
> 
>  
> 
> wbinfo -g returns the domain groups properly
> 
> wbinfo -u return the domain users properly
> 
>  
> 
> [root@solar samba]# wbinfo -a 'DNAME\uname'%secret 
> 
> plaintext password authentication succeeded
> 
> challenge/response password authentication succeeded
> 
>  
> 
> [root@solar samba]# wbinfo -K 'DNAME\uname'%secret 
> 
> plaintext kerberos password authentication for [DNAME\uname%secret]
> succeeded (requesting cctype: FILE)
> 
> credentials were put in: FILE:/tmp/krb5cc_0
> 
>  
> 
> [root@solar samba]# wbinfo -t
> 
> checking the trust secret via RPC calls succeeded
> 
>  
> 
> So that all works fine.  smbclient chokes though:
> 
>  
> 
> [root@solar samba]# smbclient -L solar -U 'DNAME\uname'
> 
> Password:
> 
> session setup failed: NT_STATUS_LOGON_FAILURE
> 
>  
> 
> [root@solar samba]# smbclient -L solar -U uname
> 
> Password:
> 
> session setup failed: NT_STATUS_LOGON_FAILURE
> 
>  
> 
> or if I even use a samba user that I have setup with smbpasswd
> 
>  
> 
> [root@solar samba]# smbclient -L solar -U sambaname
> 
> Password:
> 
> session setup failed: NT_STATUS_LOGON_FAILURE
> 
>  
> 
> The only log file in /var/log/samba that shows any changes is log.nmbd
> 
>  
> 
> [2008/07/23 08:18:47, 0] nmbd/nmbd_namequery.c:query_name_response(109)
> 
>   query_name_response: Multiple (2) responses received for a query on
> subnet 192.168.77.244 for name DNAME<1d>.
> 
>   This response was from IP 192.168.77.216, reporting an IP address of
> 192.168.77.216.
> 
>  
> 
> Here is my smb.conf
> 
>  
> 
> # Samba config file created using SWAT
> 
> # from 127.0.0.1 (127.0.0.1)
> 
> # Date: 2008/07/17 09:25:15
> 
>  
> 
> [global]
> 
>    workgroup = DNAME
> 
>    realm = DNAME.LOCAL
> 
>    netbios aliases = solar.dname.local, solar.dname.com
> 
>    server string = Samba %v %h
> 
>    interfaces = 192.168.77.244
> 
>    security = ADS
> 
> #  security = user
> 
>    auth methods = winbind
> 
>    use kerberos keytab = Yes
> 
>    encrypt passwords = yes
> 
>    winbind enum users = Yes
> 
>    winbind enum groups = Yes
> 
>    preferred master = No
> 
>    local master = No
> 
>    domain master = No
> 
>    ldap ssl = no
> 
>    idmap domains = DNAME
> 
>    idmap uid = 10000-20000
> 
>    idmap gid = 10000-20000
> 
>  
> 
> [T_drive]
> 
>    writeable = yes
> 
>    valid users = sambaname,'DNAME\uname'
> 
>    public = yes
> 
>    path = /data/T_drive
> 
>  
> 
> Here is krb5.conf
> 
>  
> 
> [logging]
> 
> default = FILE:/var/log/krb5libs.log
> 
> kdc = FILE:/var/log/krb5kdc.log
> 
> admin_server = FILE:/var/log/kadmind.log
> 
>  
> 
> [libdefaults]
> 
> default_realm = DNAME.LOCAL
> 
>  
> 
> [realms]
> 
> DNAME.LOCAL = {
> 
>    default_domain > 
>    kdc = nvautil01.DNAME.local:
> 
>    admin_server = nvadom01:
> 
> }
> 
>  
> 
> [domain_realm]
> 
> dname.local = DNAME.LOCAL
> 
>  
> 
> pam.d directory samba file
> 
>  
> 
> [root@solar samba]# more /etc/pam.d/samba
> 
> #%PAM-1.0
> 
> auth    sufficient      pam_krb5afs.so
> 
> account sufficient      pam_krb5afs.so
> 
> auth    sufficient      pam_winbind.so
> 
> account sufficient      pam_winbind.so
> 
> session sufficient      pam_krb5afs.so
> 
> password       sufficient  pam_krb5afs.so
> 
> auth     required       pam_unix.so
> 
> account  required       pam_unix.so
> 
> session sufficient      pam_winbind.so
> 
> password       sufficient  pam_winbind.so
>

Volker Lendecke

2008-Jul-23 21:36 UTC

head link

[Samba] Trouble authenticating to Samba shares with Win 2k3 ADS

On Wed, Jul 23, 2008 at 08:36:13AM -0600, Andrew Masterson
wrote:> I may have a deficiency in understanding the procedure for ADS
> authentication with samba, but most of the server setup works so far.  I
> have bound a Red Hat Enterprise 5 server to our windows domain, it shows
> up in DNS and ADS, I can ping it, but I can't get samba shares to be
> accessible to users, or even get the smbclient to return shares
> properly.
You did not list your nsswitch.conf. Did you put winbind in
there (and killed nscd?)?

Volker
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