Krb_ap_err_modified Error From The Server This Indicates That The
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CaroJuly 4, 20130 Share 0 0 While I was building my lab environment with the preview of System Center 2012 R2, I’ve encountered an the kerberos client received a krb_ap_err_modified error from the server cifs interesting issue regarding the data warehouse behavior. Basically, the issue
This Indicates That The Target Server Failed To Decrypt The Ticket Provided By The Client
I had was that my Data Warehouse jobs would fail to complete. At the same time, the kerberos client received a krb_ap_err_modified error from the server domain controller in the event viewer of my systems I had the following error message : Log Name: System Source: Microsoft-Windows-Security-Kerberos Event ID: 4 Task Category: None Level: Error the kerberos client received a krb_ap_err_tkt_nyv error from the server host Keywords: Classic User: N/A Computer: SCSMDW.wsdemo.com Description: The Kerberos client received a KRB_AP_ERR_MODIFIED error from the server smsvc. The target name used was MSOMSdkSvc/SCSMDW. This indicates that the target server failed to decrypt the ticket provided by the client. This can occur when the target server principal name (SPN) is registered on an
Resetting The Secure Channel Pw Of A Broken Domain Controller
account other than the account the target service is using. Ensure that the target SPN is only registered on the account used by the server. This error can also happen if the target service account password is different than what is configured on the Kerberos Key Distribution Center for that target service. Ensure that the service on the server and the KDC are both configured to use the same password. If the server name is not fully qualified, and the target domain (WSDEMO.COM) is different from the client domain (WSDEMO.COM), check if there are identically named server accounts in these two domains, or use the fully-qualified name to identify the server. In my environment, smsvc is the service account that I’m using for Service Manager. However when I looked at my SPN settings, I had the following : C:\Users\Administrator.WSDEMO>setspn -Q MSOMSdkSvc/SCSMDW Checking domain DC=wsdemo,DC=com CN=SCSMDW,CN=Computers,DC=wsdemo,DC=com MSOMSdkSvc/SCSMDW MSOMSdkSvc/SCSMDW.wsdemo.com MSOMHSvc/SCSMDW MSOMHSvc/SCSMDW.wsdemo.com TERMSRV/SCSMDW T
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Event Id 4 Krb_ap_err_modified
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on a client's server the other day and I finally decided I would look at and resolve one of the more common error messages I see when I'm working on a remediation project: http://peter-kline.com/?p=1 The Kerberos client received a KRB_AP_ERR_MODIFIED error from the server reception-win7$. The target name used was cifs/ceo-computer.domain.local. This indicates that the target server failed to decrypt the ticket provided by the client. This can occur https://www.experts-exchange.com/questions/23948102/How-to-fix-these.html when the target server principal name (SPN) is registered on an account other than the account the target service is using. The message evaded me for quite a long time - it seemed to indicate error from a mismatch in computer names, but I knew quite well both were properly joined to the domain. I wondered what would happen if I tried a basic operation on the target machine? C:\System>dir \\ceo-computer\c$ Logon Failure: The target account name is incorrect. Interesting - something was going on with the account for ceo-computer$ I wonder if the machine is online and resolves to an IP address? C:\System>ping -n 1 ceo-computer Pinging ceo-computer.domain.local error from the [10.0.0.36] with 32 bytes of data: Reply from 10.0.0.36: bytes=32 time<1ms TTL=128 Interesting - the machine is online. I wonder if they mean the computer account? A quick check would show me the NetBIOS machine name of that host: C:\System>nbtstat -A 10.0.0.36 Local Area Connection: Node IpAddress: [10.0.0.2] Scope Id: [] NetBIOS Remote Machine Name Table Name Type Status ------------------------------ RECEPTION-WIN7 <00> UNIQUE Registered DOMAIN <00> GROUP Registered RECEPTION-WIN7 <20> UNIQUE Registered DOMAIN <1E> GROUP Registered MAC Address = 00-0F-FB-F3-CF-73 And there we have it. When I issue the DIR command for the above UNC, it looks up the SPN for that machine and then looks the machine name up in DNS. The machine returned the IP address for a different computer, with the destination rejecting the connection because the login account for that computer was incorrect. A quick check showed what I immediately suspected - DHCP was not updating DNS when an DHCP Renew request was processed and was using (very) old values. I fixed DHCP and checked later - viola! - the problem was resolved. This entry was posted in Uncategorized on March 28, 2013 by wpadmin. Post navigation Server Manager Never Loads → 6 thoughts on “Log Message: Kerberos client received a KRB_AP_ER
for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > How to fix these Want to Advertise Here? Solved How to fix these Posted on 2008-12-01 Windows Server 2003 3 Verified Solutions 3 Comments 12,712 Views Last Modified: 2012-05-05 I receive the following on all the servers in my domain. OS: Windows 2003 SP2 These Examples is from the same server. Example1: Event Type: Error Event Source: Kerberos Event Category: None Event ID: 4 Date: 12/1/2008 Time: 9:42:30 PM User: N/A Computer: SERVER Description: The kerberos client received a KRB_AP_ERR_MODIFIED error from the server host/server1.domain.com. The target name used was ldap/server1.domain.com/domain.com@DOMAIN.COM. 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.COM), and the client realm. Please contact your system administrator. Example2: Event Type: Error Event Source: Kerberos Event Category: None Event ID: 4 Date: 12/1/2008 Time: 8:51:30 PM User: N/A Computer: SERVER Description: The kerberos client received a KRB_AP_ERR_MODIFIED error from the server host/server1.domain.com. The target name used was cifs/server1.domain.com. 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.COM), and the client realm. Please contact your system administrator. Example 3: Event Type: Error Event Source: Kerberos Event Category: None Event ID: 4 Date: 12/1/2008 Time: 8:51:28 PM User: N/A Compu