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Druva Documentation

Unable to register AD server with inSync server

Overview

This article explains the steps to perform in case of the following error.

Error

"Cannot register the AD server.  Strong(er) authentication required."

Following traceback is seen under the inSyncSyncServer.log

[2014-07-28 04:43:26,808] [ERROR] Error <class 'inSyncLib.inSyncError.SyncError'>:Strong(er) authentication required (#10000007f). Traceback -Traceback (most recent call last):
File "inSyncWWWLib\ActiveDirectory.pyc", line 206, in add
File "inSyncLib\inSyncRPC.pyc", line 1626, in call
File "inSyncLib\inSyncRPC.pyc", line 1610, in __safe_request
File "inSyncLib\inSyncRPC.pyc", line 1554, in _safe_request
File "inSyncLib\inSyncRPC.pyc", line 1546, in execute
File "<string>", line 1, in <module>
File "xmlrpclib.pyc", line 1224, in call
File "inSyncLib\inSyncBaseRPC.pyc", line 672, in __safe_request
File "inSyncLib\inSyncBaseRPC.pyc", line 757, in __issue_request
SyncError: Strong(er) authentication required (#10000007f)

Resolution

Log in to the AD Server and perform the following steps

  1. Open Group policy manager.
  2. Edit the Domain Controller Policy
  • Computer Configuration > Windows Settings > Security Settings > Local Policies > Security Options
  1. Look for the below two entries-
  • Domain Controller: LDAP Server signing requirements.
  • Network security: LDAP Client signing requirements
  1. Make sure these entries are set to the following values-
  • Domain controller: LDAP server signing requirements = none
  • Network security: LDAP client signing requirements = Negotiate
  1. In some environments the entry "Domain controller: LDAP server signing requirements" is set to "Require Signing".

RequireSigning.png

  1. Change it to "none" and run a GPUPDATE /FORCE on the AD Server.

LocalSecuritySetting.png

  1. Try to register the AD server again from the Console and this time you should be able to register it successfully.

Reference article: https://technet.microsoft.com/<wbr/>en-us/library/cc778124(v=ws.<wbr/>10).aspx