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Resource access via Sid History Vs Resource access via Group membership post Inter-forest Migration

May 8, 2020, 12:30 am
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Hello,

Resources are in the source domain. "Domain Local" groups of source domain are applied on resource ACL. Those source domain local groups had been migrated from source domain to target domain using Sid History and scope of the source domain group had been changed from domain local group (in source domain) to Global group (in target domain) meaning that now global group in target domain have Sid of source domain local group in Sid History attribute.

So If I add newly created user (created in target domain) inside migrated global group, his access token contains:

Sid for target domain user account
Sid for migrated global group of which the user is a member.
Sid for source domain local group in Sid History attribute of migrated global group

So newly created user now has Sid of source domain local group in his access token and that user will be able to access resource without source domain local group membership (either directly OR indirectly via nesting of migrated global group inside source domain local group).

Please confirm if this statement is true?

If the above statement is true, then what is the point of nesting migrated global group into source domain local group? In my AD infrastructure, I see that migrated global group is nested inside source domain local group.Why is this required? What is the main reason? Kindly explain.

I'm getting confused between "Resource access via Sid History Vs Resource access via Group membership" as the title says. So it would be great help if you share link of good articles for below mentioned topics that can clear all my doubts and confusion

1- Understanding Microsoft's Best Practice for group management

2- Resource access controls

3- Sid History

Please explain specific to all queries mentioned above. 

Thanks in advance!

G-ONE

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Delegate permission to modify UPN

April 20, 2020, 9:36 am
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Hello all

Please let us know how to delegate permission for User to modify UPN for user object in an OU.

regards

Aamir

NA

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Remove Demote Child Domain with multiple domain controllers within it

May 11, 2020, 2:12 am
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Hello ,

We have four child domains.

For Example :

DEV.myparent.pri

ITS.myparent.pri

OPS.myparent.pri

QAD.myparent.pri

We need to remove one of Child Domain (myChildDom1.myparent.pri) which is having multiple domain controllers on it. 

(DC01.OPS.myparent.pri, DC02.OPS.myparent.pri , DC03.OPS.myparent.pri, DC04.OPS.myparent.pri )

Do I need to demote each DC one by one then for select "This is last domain controller" for the last domain controller for OPS.myparent.pri

or any other Steps of Method do i need to follow for successful removal of child DC.

Please find below screenshot.


Thanks , Prakash ,Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

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A user account was locked out.

April 30, 2020, 5:45 am
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Hello team,

We are using one AD FTP account where it is getting "A user account was locked out" alerts every day.How to fix it?

----------------------

A user account was locked out.

Subject:
Security ID: SYSTEM
Account Name: DC03$
Account Domain:PRODUCT

Account That Was Locked Out:
Security ID: PRODUCT\SSTEST
Account Name: SSTEST

Additional Information:
Caller Computer Name:CMF04

-----------------

Regards,

PR

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Frequently user account was disabled events

May 11, 2020, 3:32 am
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Hello Team,

How to find the reason for frequently  user account was disabled and fix:

servicem   is a service account in AD, not sure why this alert frequently generating.

--------------------------------

A user account was disabled.    Subject:   Security ID:  S-1-xxxxxx   Account Name:  servicem   Account Domain:  xxxx   Logon ID:  0xxxxx  Target Account:   Security ID:  S-1-xxxxxx   Account Name:  DF-W01   Account Domain:  xxxx 

-------------------------

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Error

May 11, 2020, 5:06 am
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dns and ad not working.

i get this error in dns log

The DNS server is waiting for Active Directory Domain Services (AD DS) to signal that the initial synchronization of the directory has been completed. The DNS server service cannot start until the initial synchronization is complete because critical DNS data might not yet be replicated onto this domain controller. If events in the AD DS event log indicate that there is a problem with DNS name resolution, consider adding the IP address of another DNS server for this domain to the DNS server list in the Internet Protocol properties of this computer. This event will be logged every two minutes until AD DS has signaled that the initial synchronization has successfully completed.

I get this error in ad

The security of this directory server can be significantly enhanced by configuring the server to enforce  validation of Channel Binding Tokens received in LDAP bind requests sent over LDAPS connections. Even if  no clients are issuing LDAP bind requests over LDAPS, configuring the server to validate Channel Binding  Tokens will improve the security of this server.
 
For more details and information on how to make this configuration change to the server, please see https://go.microsoft.com/fwlink/?linkid=2102405.

i get this error after login exchange server 2019 admin

500
Unexpected Error :(
An error occurred and your request couldn't be completed. Please try again.

Please help....


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wap and antivirus

May 11, 2020, 7:14 am
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Hi folks,

Are there any concerns for installing an antivirus on front end proxies for adfs 3?

Thanks!

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Known issues in AD 2016

May 11, 2020, 12:23 pm
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Is there any known issue in AD 2016 ? We see there there was an issue when a non-Windows platform application which performs LDAPS queries against AD 2016 as per below blog

https://blogs.uw.edu/barkills/2017/09/11/ws2016-ad-upgrade-problem-tls-ciphers/

Not sure whether it is still an issue. Additionlaly we see that SMB 2+ over NetBT is deprecated for AD 2016 as per MS, is there any potential issue can occur because of this ?
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Child domains are replication islands

May 11, 2020, 2:26 pm
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Just started a new position, and in discovering the AD structure I ran across the following issue. We have 11 child domains, and 6 of those haven't replicated with the parent domain in over 2 months. 

In digging through things, the 6 affected domains had a single replication partner with the parent domain, and that domain controller was replaced due to an OS corruption where it wouldn't start. This left the child domains stranded on their own replication islands. 

Overall topology is 7 dc's in the parent domain, but only 2 of which are reachable by the child domains. Both of the DC's that are reachable have been replaced with new OS's with different names, but the same IP addresses. 

Each child domain is restricted by network rules from communicating with another child domain since they are customer purposed domains. 

For example, childdc1.child1.parent.int can only reach parentdc102.parent.int and parentdc110.parent.int, but orginally it only had a replication partner of parentdc101.parent.int which is no longer available. 

When childdc1.child1.parent.int attempts to replicate with parentdc101.parent.int it reaches parentdc110.parent.int but it fails replication due to event 1645. 

Active Directory Domain Services did not perform an authenticated remote procedure call (RPC) to another directory server because the desired service principal name (SPN) for the destination directory server is not registered on the Key Distribution Center (KDC) domain controller that resolves the SPN.
 
Destination directory server:
aa22c8a7-e66a-4d55-b134-30574d01c1c1._msdcs.parent.int
SPN:
E3514235-4B06-11D1-AB04-00C04FC2DCD2/aa22c8a7-e66a-4d55-b134-30574d01c1c1/parent.int@parent.int

I've tried adding that SPN to the parent110.parent.int DC, but it gets removed by the KDC I'm assuming. 

What other ways can I try to spoof the Kerberos call from childdc1.child.parent.int to parent110.parent.int? Or how can I force the replication between the child and parent domain to use NTLMV2 instead of Kerberos for authentication?

Thanks,

Scott

Scott Monroe

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AD users login process is taking to long

May 7, 2020, 1:48 pm
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Hi All,
AD users login process  is taking too long if pc is connected external network(Like working from home)

IF i disable network it is working normarally

I tried below steps:
   1. Uninstall Antivirus
   2. Disjoin and rejoin domain
   3. Removed from the all group policy except default group policy
   4.There is no update installed on last month

    5. There is no logon script
Events
=====================================================================================================
07/05/2020 14:04:28 : DNS Client Events : 8020

The system failed to register host (A or AAAA) resource records (RRs) for network adapter
with settings:

           Adapter Name : {D2754B9D-86F5-42C1-BEDC-D3B8C4621821}
           Host Name : EH-HO-RP-T470
           Primary Domain Suffix : test.com
           DNS server list :
192.168.0.1
           Sent update to server : 97.74.8.59:53

           IP Address(es) :
             192.168.0.106

The reason the system could not register these RRs during the update request was because of a system problem. You can manually retry DNS registration of the network adapter and its settings by typing 'ipconfig /registerdns' at the command prompt. If problems still persist, contact your DNS server or network systems administrator. See event details for specific error code information.
=====================================================================================================
07/05/2020 14:04:37 : WinLogon : User Log-on Notification for Customer Experience Improvement Program
======================================================================================================
07/05/2020 14:04:37 : Group Policy : Event ID : 1129
The processing of Group Policy failed because of lack of network connectivity to a domain controller. This may be a transient condition. A success message would be generated once the machine gets connected to the domain controller and Group Policy has successfully processed. If you do not see a success message for several hours, then contact your administrator.
========================================================================================
07/05/2020 14:04:38 :Service Control Manager  Event ID :7034
The Windows Biometric Service service terminated unexpectedly. It has done this 390 time(s).
==============================================================================================
07/05/2020 14:04:41 DistributedCOM :Event ID : 10016
The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID 
{6B3B8D23-FA8D-40B9-8DBD-B950333E2C52}
 and APPID 
{4839DDB7-58C2-48F5-8283-E1D1807D0D7D}
 to the user NT AUTHORITY\LOCAL SERVICE SID (S-1-5-19) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool.            


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ADMT Migration errors

May 5, 2020, 12:59 pm
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Using ADMT to migrate AD contents from one domain to a new one.

We're able to migrate users and groups without any problems, but running into a persistent error trying to migrate workstations and servers.

It looks like ADMT can't copy the configuration file down to the machines.

ADMT is using our Domain Administrator account, We tried disabling Windows Firewall is disabled on the target machines but no luck.

[Agent Dispatch Section]

2020-05-05 14:25:25 Read 23 accounts from the database that were previously migrated from the domain 'domain.local' to the domain 'domain.com'

2020-05-05 14:25:25 Created account input file for remote agents: Accounts000010.txt

2020-05-05 14:25:25 WRN1:7817 Cannot store account file 'c:\Windows\ADMT\Logs\Agents\Accounts000010.txt' in database. A retry of this operation can only be performed on the  machine that the operation was originally performer on.

2020-05-05 14:25:25 Installing agent on 1 Servers

2020-05-05 14:14:43 The Active Directory Migration Tool Agent will be installed on FS01.domain.local

2020-05-05 14:14:45 Error in OpenFileInfo(): FindFirstFile(  C:\Windows\ADMT\Logs\Agents\Accounts000010.txt) rc=2 The system cannot find the file specified.

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Active directory 2016 supported Clients

May 12, 2020, 5:20 am
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Hi All,

We are planning to migrate Active directory 2012 to Active directory 2016, if anybody have compatibility client matirx list

of Windows operating systems , Linux, Oracle, and MAC

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delete exe files from OS drive through GPO

May 12, 2020, 5:45 am
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how can i remove unwanted exe files from C:\program files\app name\app.exe for all user machines 

how can i setup this through Group policy 

 

Dharmendra

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What is the relationship between a users group membership and the groups which appear on the security tab in AD USERS and COMPUTERS?

May 12, 2020, 8:09 am
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What is the relationship between a users group membership and the groups which appear on the security tab in AD USERS and COMPUTERS? I setup a new user and assigned them to "Domain Users" group in the "Member of" tab. That is the only group which they belong to. I enabled the advanced view options, which made the security tab available. When I check this tab for this user, there are many groups listed here including enterprise admins, administrators, etc. What is purpose of this security tab and why would a domain user have these groups listed in the security tab when they are not a member of any of these groups?

Thank you,

Steve



Stephen Weber IT Project Manager PMP, MCSE, CNA

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wallpaper GPO

May 12, 2020, 9:12 am
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Dear All,

I have apply GPO of changing wallpaper to my workstation in domain. i have edit group policy and apply to "computer configuration->Administrator Template->system->logon. the policy working fine when workstation connect to network. then i disconnect laptop from network and login to computer as offline profile and the wallpaper not show. does it right to configure GPO vs Computer configuration intends of User configuration?

dfj

sff

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Export Active Directory Security group with Department Name to CSV File

May 12, 2020, 1:14 pm
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Dears,

I have active directory security group name "XXX" it has almost 300 user accounts. I need to export all the users to CSV file and I need AD command to do this job and bring all the user accounts with their department names for each user and exported to excel file.

Best Regards,

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Email Notification for newly added server into Domain

May 7, 2020, 11:10 pm
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Hello team,

Is it possible to setup email notification whenever any server added to domain in active directory?If yes, how to setup.

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Security Eventlog 7470

May 8, 2020, 6:03 am
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Hi,

I have a question, The event 7470 (lockout account), it is replicating to the controller with the all fsmo rolls, is that normal?

I thought the security events does not replicate betewen controllers.

Best regards 

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Manage Computer Object in Active Directory

May 6, 2020, 1:34 pm
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I created virtual desktops and those desktops got added to the OU. I right click on those desktops to go and manage it so I can add a user as the local administrator easily instead of going through each computer and adding it, and I GET THE following error. I am not able to open it. 

AA2913

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Delegate permission to modify UPN

April 20, 2020, 9:36 am
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Hello all

Please let us know how to delegate permission for User to modify UPN for user object in an OU.

regards

Aamir

NA

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