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exported LDAP DB > file > smbpasswd?

aurfalien
Hi all,

I am using OpenLDAP and over have ~800 users in its DB.

I would like to simply use Samba as a file server, no PDC.

I have been able to export my LDAP DB to a file containing hashes of users passwords.

Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?

I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.

I have them currently authenticating on Windows via an LDAP client (pGina).

- aurf
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Re: exported LDAP DB > file > smbpasswd?

Gaiseric Vandal
Presumably with the PGINA/LDAP solution, the has method is something
unix-compatible  (e.g. unix crypt+md5, or SSHA) that is hard to break
with a password cracking program?     Are the LDAP transmissions done in
the clear?  If so, you could sniff the traffic and capture the
passwords.   (You may not consider this ethical.)  Either way, if you
had a database of plain text passwords you could then create the NTLM
passwords for each user.

You could try configuring samba to use permit plain text passwords for
authentication.  I think (but not sure) that could then configure samba
to use pam authentication (the same way a unix login would.)  But you
would then need to configure all the Windows PC's to support plain text
passwords.








On 05/24/12 16:25, aurfalien wrote:

> Hi all,
>
> I am using OpenLDAP and over have ~800 users in its DB.
>
> I would like to simply use Samba as a file server, no PDC.
>
> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>
> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>
> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>
> I have them currently authenticating on Windows via an LDAP client (pGina).
>
> - aurf

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Re: exported LDAP DB > file > smbpasswd?

aurfalien
Hi Gaiseric,

I tried w/o success in configuring Samba + PAM last night.

Do you know now of any documentation that would help?

- aurf


On May 24, 2012, at 5:35 PM, Gaiseric Vandal wrote:

> Presumably with the PGINA/LDAP solution, the has method is something
> unix-compatible  (e.g. unix crypt+md5, or SSHA) that is hard to break
> with a password cracking program?     Are the LDAP transmissions done in
> the clear?  If so, you could sniff the traffic and capture the
> passwords.   (You may not consider this ethical.)  Either way, if you
> had a database of plain text passwords you could then create the NTLM
> passwords for each user.
>
> You could try configuring samba to use permit plain text passwords for
> authentication.  I think (but not sure) that could then configure samba
> to use pam authentication (the same way a unix login would.)  But you
> would then need to configure all the Windows PC's to support plain text
> passwords.
>
>
>
>
>
>
>
>
> On 05/24/12 16:25, aurfalien wrote:
>> Hi all,
>>
>> I am using OpenLDAP and over have ~800 users in its DB.
>>
>> I would like to simply use Samba as a file server, no PDC.
>>
>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>
>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>
>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>
>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>
>> - aurf
>
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Re: exported LDAP DB > file > smbpasswd?

Gaiseric Vandal
Just what is in the documentation on samba.org.

Anything involving plain-text authentication seems to be discouraged.



On 05/24/12 17:56, aurfalien wrote:

> Hi Gaiseric,
>
> I tried w/o success in configuring Samba + PAM last night.
>
> Do you know now of any documentation that would help?
>
> - aurf
>
>
> On May 24, 2012, at 5:35 PM, Gaiseric Vandal wrote:
>
>> Presumably with the PGINA/LDAP solution, the has method is something
>> unix-compatible  (e.g. unix crypt+md5, or SSHA) that is hard to break
>> with a password cracking program?     Are the LDAP transmissions done in
>> the clear?  If so, you could sniff the traffic and capture the
>> passwords.   (You may not consider this ethical.)  Either way, if you
>> had a database of plain text passwords you could then create the NTLM
>> passwords for each user.
>>
>> You could try configuring samba to use permit plain text passwords for
>> authentication.  I think (but not sure) that could then configure samba
>> to use pam authentication (the same way a unix login would.)  But you
>> would then need to configure all the Windows PC's to support plain text
>> passwords.
>>
>>
>>
>>
>>
>>
>>
>>
>> On 05/24/12 16:25, aurfalien wrote:
>>> Hi all,
>>>
>>> I am using OpenLDAP and over have ~800 users in its DB.
>>>
>>> I would like to simply use Samba as a file server, no PDC.
>>>
>>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>>
>>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>>
>>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>>
>>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>>
>>> - aurf
>> --
>> To unsubscribe from this list go to the following URL and read the
>> instructions:  https://lists.samba.org/mailman/options/samba

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Re: exported LDAP DB > file > smbpasswd?

Collen-2
Hi,

why not export with pdbedit and then import it again ?!
no converting needed... (except for smb.conf that is.)

cheers.

On 25-5-2012 0:01, Gaiseric Vandal wrote:

> Just what is in the documentation on samba.org.
>
> Anything involving plain-text authentication seems to be discouraged.
>
>
>
> On 05/24/12 17:56, aurfalien wrote:
>>>
>>> On 05/24/12 16:25, aurfalien wrote:
>>>> Hi all,
>>>>
>>>> I am using OpenLDAP and over have ~800 users in its DB.
>>>>
>>>> I would like to simply use Samba as a file server, no PDC.
>>>>
>>>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>>>
>>>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>>>
>>>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>>>
>>>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>>>
>>>> - aurf
>>> --
>>> To unsubscribe from this list go to the following URL and read the
>>> instructions:  https://lists.samba.org/mailman/options/samba
>

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Re: exported LDAP DB > file > smbpasswd?

aurfalien
Now thats brilliant, elegant and simple.

Thanks Collen, looking forward to trying it.

- aurf
On May 25, 2012, at 2:31 AM, Collen wrote:

> Hi,
>
> why not export with pdbedit and then import it again ?!
> no converting needed... (except for smb.conf that is.)
>
> cheers.
>
> On 25-5-2012 0:01, Gaiseric Vandal wrote:
>> Just what is in the documentation on samba.org.
>>
>> Anything involving plain-text authentication seems to be discouraged.
>>
>>
>>
>> On 05/24/12 17:56, aurfalien wrote:
>>>>
>>>> On 05/24/12 16:25, aurfalien wrote:
>>>>> Hi all,
>>>>>
>>>>> I am using OpenLDAP and over have ~800 users in its DB.
>>>>>
>>>>> I would like to simply use Samba as a file server, no PDC.
>>>>>
>>>>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>>>>
>>>>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>>>>
>>>>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>>>>
>>>>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>>>>
>>>>> - aurf
>>>> --
>>>> To unsubscribe from this list go to the following URL and read the
>>>> instructions:  https://lists.samba.org/mailman/options/samba
>>
>
> --
> ---
> Collen Blijenberg - systeem/netwerk beheerder
>
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> instructions:  https://lists.samba.org/mailman/options/samba

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Re: exported LDAP DB > file > smbpasswd?

Gaiseric Vandal
pbdedit will export the "Windows" password from the "SambaNTPassword"
field (won't it?)

My understanding was the pGina was using the unix password in the
"userPassword"  field?    Or am I wrong?




On 05/25/12 09:36, aurfalien wrote:

> Now thats brilliant, elegant and simple.
>
> Thanks Collen, looking forward to trying it.
>
> - aurf
> On May 25, 2012, at 2:31 AM, Collen wrote:
>
>> Hi,
>>
>> why not export with pdbedit and then import it again ?!
>> no converting needed... (except for smb.conf that is.)
>>
>> cheers.
>>
>> On 25-5-2012 0:01, Gaiseric Vandal wrote:
>>> Just what is in the documentation on samba.org.
>>>
>>> Anything involving plain-text authentication seems to be discouraged.
>>>
>>>
>>>
>>> On 05/24/12 17:56, aurfalien wrote:
>>>>> On 05/24/12 16:25, aurfalien wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> I am using OpenLDAP and over have ~800 users in its DB.
>>>>>>
>>>>>> I would like to simply use Samba as a file server, no PDC.
>>>>>>
>>>>>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>>>>>
>>>>>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>>>>>
>>>>>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>>>>>
>>>>>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>>>>>
>>>>>> - aurf
>>>>> --
>>>>> To unsubscribe from this list go to the following URL and read the
>>>>> instructions:  https://lists.samba.org/mailman/options/samba
>> --
>> ---
>> Collen Blijenberg - systeem/netwerk beheerder
>>
>> --
>> To unsubscribe from this list go to the following URL and read the
>> instructions:  https://lists.samba.org/mailman/options/samba

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Re: exported LDAP DB > file > smbpasswd?

aurfalien
I am using pGina for authing, correct.

But when I map drive shares, I'll need some kind of authing mechanism.

My desire was this;

Since I already auth the user during there pGina login to Windows, I did not want to auth again for drive mapping to a Samba server.

But... since this SSO doesn't carry through to Samba as the Samba file server does not know who this person is requesting a drive map, they will need to input credentials.

What I would really LOVE is this;

Since authing has already been taking care of during log in, to be able to map a drive as that user w/o needing the input a password.

This way whatever they touch on the server will maintain there UID/GID or UGO rather.

This in effect will make Samba act as NFS in a way with regards to security (who are you and what are you allowed to do).

- aurf




On May 25, 2012, at 9:44 AM, Gaiseric Vandal wrote:

> pbdedit will export the "Windows" password from the "SambaNTPassword"
> field (won't it?)
>
> My understanding was the pGina was using the unix password in the
> "userPassword"  field?    Or am I wrong?
>
>
>
>
> On 05/25/12 09:36, aurfalien wrote:
>> Now thats brilliant, elegant and simple.
>>
>> Thanks Collen, looking forward to trying it.
>>
>> - aurf
>> On May 25, 2012, at 2:31 AM, Collen wrote:
>>
>>> Hi,
>>>
>>> why not export with pdbedit and then import it again ?!
>>> no converting needed... (except for smb.conf that is.)
>>>
>>> cheers.
>>>
>>> On 25-5-2012 0:01, Gaiseric Vandal wrote:
>>>> Just what is in the documentation on samba.org.
>>>>
>>>> Anything involving plain-text authentication seems to be discouraged.
>>>>
>>>>
>>>>
>>>> On 05/24/12 17:56, aurfalien wrote:
>>>>>> On 05/24/12 16:25, aurfalien wrote:
>>>>>>> Hi all,
>>>>>>>
>>>>>>> I am using OpenLDAP and over have ~800 users in its DB.
>>>>>>>
>>>>>>> I would like to simply use Samba as a file server, no PDC.
>>>>>>>
>>>>>>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>>>>>>
>>>>>>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>>>>>>
>>>>>>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>>>>>>
>>>>>>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>>>>>>
>>>>>>> - aurf
>>>>>> --
>>>>>> To unsubscribe from this list go to the following URL and read the
>>>>>> instructions:  https://lists.samba.org/mailman/options/samba
>>> --
>>> ---
>>> Collen Blijenberg - systeem/netwerk beheerder
>>>
>>> --
>>> To unsubscribe from this list go to the following URL and read the
>>> instructions:  https://lists.samba.org/mailman/options/samba
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba

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Re: exported LDAP DB > file > smbpasswd?

aurfalien
In reply to this post by Gaiseric Vandal
I would also like to add that since Samba and in effect Windows does not behave like Nix with regards to who you are and what you are trying to do, looks like I will have to integrate PDC functionality into my LDAP server :(

Man, this easily quadruples my over all LDAP database, gross.

But at least SSO will work.

Am I on the right track?

- aurf

On May 25, 2012, at 9:44 AM, Gaiseric Vandal wrote:

> pbdedit will export the "Windows" password from the "SambaNTPassword"
> field (won't it?)
>
> My understanding was the pGina was using the unix password in the
> "userPassword"  field?    Or am I wrong?
>
>
>
>
> On 05/25/12 09:36, aurfalien wrote:
>> Now thats brilliant, elegant and simple.
>>
>> Thanks Collen, looking forward to trying it.
>>
>> - aurf
>> On May 25, 2012, at 2:31 AM, Collen wrote:
>>
>>> Hi,
>>>
>>> why not export with pdbedit and then import it again ?!
>>> no converting needed... (except for smb.conf that is.)
>>>
>>> cheers.
>>>
>>> On 25-5-2012 0:01, Gaiseric Vandal wrote:
>>>> Just what is in the documentation on samba.org.
>>>>
>>>> Anything involving plain-text authentication seems to be discouraged.
>>>>
>>>>
>>>>
>>>> On 05/24/12 17:56, aurfalien wrote:
>>>>>> On 05/24/12 16:25, aurfalien wrote:
>>>>>>> Hi all,
>>>>>>>
>>>>>>> I am using OpenLDAP and over have ~800 users in its DB.
>>>>>>>
>>>>>>> I would like to simply use Samba as a file server, no PDC.
>>>>>>>
>>>>>>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>>>>>>
>>>>>>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>>>>>>
>>>>>>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>>>>>>
>>>>>>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>>>>>>
>>>>>>> - aurf
>>>>>> --
>>>>>> To unsubscribe from this list go to the following URL and read the
>>>>>> instructions:  https://lists.samba.org/mailman/options/samba
>>> --
>>> ---
>>> Collen Blijenberg - systeem/netwerk beheerder
>>>
>>> --
>>> To unsubscribe from this list go to the following URL and read the
>>> instructions:  https://lists.samba.org/mailman/options/samba
>
> --
> To unsubscribe from this list go to the following URL and read the
> instructions:  https://lists.samba.org/mailman/options/samba

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Re: exported LDAP DB > file > smbpasswd?

Gaiseric Vandal
In reply to this post by aurfalien
I understand what you are trying to accomplish.

However I do not know which LDAP field is used for the "pGina"
password-  I believe it is "userPassword" but I am not sure.

If seems to me you have three options

1.  Crack the unix passwords so you can create matching windows passwords.
2.  Configure Samba and your Windows clients to use plain text
authentication so that your "unix" passwords can be used for authentication.
3.  Prior to switching users to samba, have them create their "samba"
passwords.  Or you may have to set an initial password for each user.

 

If I were to try to have users set their samba passwords, I would
probably try to set up a web page that validates their login against the
current non-samba password (Plaintext auth over SSL encryption ) , then
passes the password and user name to a script to set their samba password.



It would be simpler if the Windows machines were in a Samba domain - but
that may be tricky to do.



On 05/25/12 09:57, aurfalien wrote:

> I am using pGina for authing, correct.
>
> But when I map drive shares, I'll need some kind of authing mechanism.
>
> My desire was this;
>
> Since I already auth the user during there pGina login to Windows, I did not want to auth again for drive mapping to a Samba server.
>
> But... since this SSO doesn't carry through to Samba as the Samba file server does not know who this person is requesting a drive map, they will need to input credentials.
>
> What I would really LOVE is this;
>
> Since authing has already been taking care of during log in, to be able to map a drive as that user w/o needing the input a password.
>
> This way whatever they touch on the server will maintain there UID/GID or UGO rather.
>
> This in effect will make Samba act as NFS in a way with regards to security (who are you and what are you allowed to do).
>
> - aurf
>
>
>
>
> On May 25, 2012, at 9:44 AM, Gaiseric Vandal wrote:
>
>> pbdedit will export the "Windows" password from the "SambaNTPassword"
>> field (won't it?)
>>
>> My understanding was the pGina was using the unix password in the
>> "userPassword"  field?    Or am I wrong?
>>
>>
>>
>>
>> On 05/25/12 09:36, aurfalien wrote:
>>> Now thats brilliant, elegant and simple.
>>>
>>> Thanks Collen, looking forward to trying it.
>>>
>>> - aurf
>>> On May 25, 2012, at 2:31 AM, Collen wrote:
>>>
>>>> Hi,
>>>>
>>>> why not export with pdbedit and then import it again ?!
>>>> no converting needed... (except for smb.conf that is.)
>>>>
>>>> cheers.
>>>>
>>>> On 25-5-2012 0:01, Gaiseric Vandal wrote:
>>>>> Just what is in the documentation on samba.org.
>>>>>
>>>>> Anything involving plain-text authentication seems to be discouraged.
>>>>>
>>>>>
>>>>>
>>>>> On 05/24/12 17:56, aurfalien wrote:
>>>>>>> On 05/24/12 16:25, aurfalien wrote:
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> I am using OpenLDAP and over have ~800 users in its DB.
>>>>>>>>
>>>>>>>> I would like to simply use Samba as a file server, no PDC.
>>>>>>>>
>>>>>>>> I have been able to export my LDAP DB to a file containing hashes of users passwords.
>>>>>>>>
>>>>>>>> Is there a way I can import this file to smbpasswd or other file that Samba understands so that my 800 some odd users won't have to re register there passwords?
>>>>>>>>
>>>>>>>> I would really love to avoid having 800 annoyed users retyping there passwords for accessing shares.
>>>>>>>>
>>>>>>>> I have them currently authenticating on Windows via an LDAP client (pGina).
>>>>>>>>
>>>>>>>> - aurf
>>>>>>> --
>>>>>>> To unsubscribe from this list go to the following URL and read the
>>>>>>> instructions:  https://lists.samba.org/mailman/options/samba
>>>> --
>>>> ---
>>>> Collen Blijenberg - systeem/netwerk beheerder
>>>>
>>>> --
>>>> To unsubscribe from this list go to the following URL and read the
>>>> instructions:  https://lists.samba.org/mailman/options/samba
>> --
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>> instructions:  https://lists.samba.org/mailman/options/samba

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Re: exported LDAP DB > file > smbpasswd?

Andrew Bartlett
In reply to this post by aurfalien
On Thu, 2012-05-24 at 16:25 -0400, aurfalien wrote:
> Hi all,
>
> I am using OpenLDAP and over have ~800 users in its DB.

If you have sambaNTPassword values and have Samba connected to it as
it's passdb backend, you can extract it using pdbedit -w.

Otherwise (unless you stored cleartext), it is cryptographically
impossible.

Andrew Bartlett

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