Solved

Event ID 2886

Posted on 2014-02-18
2
2,404 Views
Last Modified: 2014-03-13
A client's server (sbs 2008) is getting Event ID 2886 warning:

Log Name:      Directory Service
Source:        Microsoft-Windows-ActiveDirectory_DomainService
Date:          1/11/2014 11:51:12 AM
Event ID:      2886
Task Category: LDAP Interface
Level:         Warning
Keywords:      Classic
User:          ANONYMOUS LOGON
Computer:      SERVER.xxx.local
Description:
The security of this directory server can be significantly enhanced by configuring the server to reject SASL (Negotiate,  Kerberos, NTLM, or Digest) LDAP binds that do not request signing (integrity verification) and LDAP simple binds that  are performed on a cleartext (non-SSL/TLS-encrypted) connection.  Even if no clients are using such binds, configuring the server to reject them will improve the security of this server.
 
Some clients may currently be relying on unsigned SASL binds or LDAP simple binds over a non-SSL/TLS connection, and will stop working if this configuration change is made.  To assist in identifying these clients, if such binds occur this  directory server will log a summary event once every 24 hours indicating how many such binds  occurred.  You are encouraged to configure those clients to not use such binds.  Once no such events are observed  for an extended period, it is recommended that you configure the server to reject such binds.
 
For more details and information on how to make this configuration change to the server, please see http://go.microsoft.com/fwlink/?LinkID=87923.
 
This KB has a "Fix it" option http://support.microsoft.com/kb/935834

I'm wondering whether others have done this and if you have any experienced any issues with the fix. Also, is the fix recommended?
0
Comment
Question by:dpacheco
2 Comments
 
LVL 74

Accepted Solution

by:
Jeffrey Kane - TechSoEasy earned 500 total points
ID: 39869232
So, the cool thing about the FixIT scripts are that they check to be sure its okay to run on your system before they run.  I've never seen one that would do anything that could harm a system -- of course there are no guarantees, but the FixIT will always make a restore point before making any changes and you can revert back if there are any problems.

Jeff
0
 
LVL 1

Author Comment

by:dpacheco
ID: 39870337
Thanks, Jeff that has been my experience with fixit's as well.
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I had a question today where the user wanted to know how to delete an SSL Certificate, so I thought that I would quickly add this How to! Article for your reference. WHY WOULD YOU WANT TO DELETE A CERTIFICATE? 1. If an incorrect certificate was …
This article explains how to install and use the NTBackup utility that comes with Windows Server.
This tutorial will give a short introduction and overview of Backup Exec 2012 and how to navigate and perform basic functions. Click on the Backup Exec button in the upper left corner. From here, are global settings for the application such as conne…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question