Solved

Event Log Kerberos KRB_AP_ERR_MODIFIED

Posted on 2012-03-14
2
789 Views
Last Modified: 2012-04-04
I'm getting the following error in my system log of my exchange server once every 1hr:


The kerberos client received a KRB_AP_ERR_MODIFIED error from the server host/DC02.domain.org.  The target name used was ldap/DC01.domain.org. This indicates that the password used to encrypt the kerberos service ticket is different than that on the target server. Commonly, this is due to identically named  machine accounts in the target realm (DOMAIN.ORG), and the client realm.   Please contact your system administrator.

I don't see any DNS errors on either server (both 2003 Enterprise R2), there are no duplicate names.  DC01 is also a DNS, File, and Print server any help would be appreciated.  I plan on removing DC01 as a DC, and DNS server and leaving it as just a file and print server.  I've added a 2008 Enterprise R2 as a DC, DNS, DHCP server that I've already transfered the FSMO roles too (error was in the logs prior to the addition of the server).  It's a single domain environment also, if any other info is needed to help please let me know!!!
0
Comment
Question by:nbccit
2 Comments
 

Accepted Solution

by:
nbccit earned 0 total points
ID: 37805835
Problem solved, it turns out someone on my team modified the host file of the Exchange Server that had a bad ip address.

Thanks,
Ronnie
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

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

This article explains how to install and use the NTBackup utility that comes with Windows Server.
A project that enables an administrator to perform actions within a user session context not just at the time of login but any time later on day(s) or week(s) later.
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…

808 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