[Samba] Samba Active Directory Domain Controller

Anantha Raghava
Thu, 04 May 2017 12:33:01 -0000

Hi,

Let me just check this and revert back.

--

Thanks & Regards,


Anantha Raghava


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On Thursday 04 May 2017 05:52 PM, lingpanda101 wrote:
> On 5/4/2017 3:37 AM, Anantha Raghava wrote:
>>
>> Hello James,
>>
>> Thanks for your quick response.
>>
>> Find attached smb.conf file from DC1 and DC2. Also attached the
>> screen shot of the event viewer from the workstation.
>>
>> At the moment, we have brought down the DC3 and DC4 in another
>> location and observed that DC2 is unable to replicate get the
>> information from DC1 or send the information to DC1. It appears
>> replication is working in background but it is taking a long time.
>> When try to use samba-tool drs command, it throws errors.
>>
>> Also, randomly, users are not allowed to change their password. It
>> throws error like "either your password does not meet complexity,
>> length or history requirement". "Workstation relationship
with Domain
>> is not trusted" is another error message that occasionally throws
up.
>>
>> Another observation is even though PDC emulator and all FSMO roles
>> are with DC1, users are logged into DC2. Any change made to user
>> credential, above error is thrown. Output of FSMO role display from
>> DC1 is attached for your information.
>>
>> In our group policy, we have disabled complexity requirements, length
>> is set to 7 characters.
>>
>> There is no clear pattern to its behavior, making it difficult to
>> analyse the issue and fix them.
>>
>> Look forward for your assistance in figuring out what is happening
>> and fixing it.
>>
>> 7000 People from nearly 700 location use these domain controllers.
>> This is turning out be very critical issue.
>>
>> --
>>
>> Thanks & Regards,
>>
>>
>> Anantha Raghava
>>
>> eXzaTech Consulting And Services Pvt. Ltd.
>>
>> DISCLAIMER:
>>
>> This e-mail communication and any attachments may be privileged and
>> confidential to eXza Technology Consulting & Services, and are
>> intended only for the use of the recipients named above If you are
>> not the addressee you may not copy, forward, disclose or use any part
>> of it. If you have received this message in error, please delete it
>> and all copies from your system and notify the sender immediately by
>> return e-mail. Internet communications cannot be guaranteed to be
>> timely, secure, error or virus-free. The sender does not accept
>> liability for any errors or omissions.
>>
>>
>> Do not print this e-mail unless required. Save Paper & trees.
>>
>> On Thursday 04 May 2017 01:27 AM, lingpanda101 via samba wrote:
>>> On 5/3/2017 2:00 PM, Anantha Raghava via samba wrote:
>>>> Hello,
>>>>
>>>> I have implemented Samba as Active Directory Domain Controller
with
>>>> Version 4.6.3 on CentOS 7.3, el-514. We have 4 domain
controllers
>>>> named as DC1, DC2, DC3 and DC4. DC1 & 2 are in one location
and DC3
>>>> & 4 are in a different location. DNS is SAMBA INTERNAL. All
4
>>>> servers are properly synchronizing and even GPO updates are
working
>>>> properly with rsync process.
>>>>
>>>> However, off late we have been noticing that on some Windows XP
>>>> with Service Pack 3 and Windows 7 with Service Pack 1, after
>>>> joining domain, when user is logging in for the first time, as
per
>>>> policy, the DC will force the user to change their password.
When
>>>> user changes password, PC reports, cannot reach domain or your
>>>> relationship with DC is not trusted and it happens randomly for
>>>> some users.
>>>> We are unable to figure out what's happenning.
>>>>
>>>> Can some one guide us in figuring out and fixing this issue?
>>>>
>>>> Thanks in advance.
>>>
>>> Can you provide your smb.conf on one of your DC's? Are you able
to
>>> look through event viewer on the workstation exhibiting the issue
>>> and see anything relevant?
>>>
>>
> Real quick before I get around to looking at your attachments. I will
> advise you that password complexity requirements are handled by
> samba-tool and not GPO's. Issue the following command on your DC's
to
> view them. They are also changed here as well.
>
> 'samba-tool domain passwordsettinsg show'
>
> --
> --
> James