Krb_ap_err_modified Error From The Server Host This Indicates That The
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This Indicates That The Target Server Failed To Decrypt The Ticket Provided By The Client
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The Kerberos Client Received A Krb_ap_err_tkt_nyv Error From The Server Host
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Krb_ap_err_modified Windows Server 2008
i receive the following error message on all member Server in a branch office for
The Kerberos Client Received A Krb_ap_err_modified Domain Controller
a special subent. Other Member server i a different subnet are not getting these errors. Before those member servers (new setup) the target name used was cifs worked fine for about 2-3 Month: Log Name: System Source: Microsoft-Windows-Security-Kerberos Date: 09.10.2013 02:47:27 Event ID: 4 Task Category: None Level: Error Keywords: Classic User: N/A Computer: server Description: The Kerberos client received a KRB_AP_ERR_MODIFIED error https://support.microsoft.com/en-us/kb/2706695 from the server dc01$. The target name used was cifs/dc01.local. 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 account other than the account the target service is using. Please ensure that the target SPN is registered on, and only registered on, the account used by the server. This error can https://social.technet.microsoft.com/Forums/office/en-US/1712db04-0dd3-4f94-9f7c-a28daf9382c9/the-kerberos-client-received-a-krbaperrmodified-error?forum=winserverDS also happen when the target ervice is using a different password for the target service account than what the Kerberos Key Distribution Center (KDC) has for the target service account. Please ensure that the service on the server and the KDC are both updated to use the current password. If the server name is not fully qualified, and the target domain (domain.local) is different from the client domain (domain.local), check if there are identically named server accounts in these two domains, or use the fully-qualified name to identify the server. These servers have no routing to the local Domain Controllers, instead they contact the DCs at the main office. So the KRB_AP_ERR_MODIFIED error is coming from both DCs at the main office, not specific to one pc. Effects that i have: - no logon with RDP possible (wrong username or password) - Service which Relay on Kerberos Auth have Problems So when i reboot the server in most cases its working again for some time. I also find out, when deleting the cached Kerberos Tickets with kerbtray its working. Any ideas what could cause the problem. As mentioned, it happend for all member servers in this subnet starting in the same night. As always, nothing was changed ;) BR, Marco Edited by travelfrea
on a client's server the other day and I finally decided I would look at and resolve http://peter-kline.com/?p=1 one of the more common error messages I see when I'm working on a remediation project: The Kerberos client received a KRB_AP_ERR_MODIFIED error from the server reception-win7$. https://community.spiceworks.com/windows_event/show/258-kerberos-4 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 when the target error from 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 a mismatch in computer names, but I knew quite well both were properly joined to the domain. I wondered what would happen if error from the 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 [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
Answer Questions My Profile ShortcutsDiscussion GroupsFeature RequestsHelp and SupportHow-tosIT Service ProvidersMy QuestionsApp CenterRatings and ReviewsRecent ActivityRecent PostsScript CenterSpiceListsSpiceworks BlogVendor PagesWindows Events Event 4 (Error) Source: Kerberos How important is this event? (9 votes) 1 2 3 4 5 not important very important Description This Windows Event does not have a description yet. Add link Text to display: Where should this link go? Add Cancel × Insert code Language Apache AppleScript Awk BASH Batchfile C C++ C# CSS ERB HTML Java JavaScript Lua ObjectiveC PHP Perl Text Powershell Python R Ruby Sass Scala SQL VB.net Vimscript XML YAML Insert Cancel Save Cancel Associated Messages message string data: ENG20$, MATHIASDIE.LOCAL, cifs/DEVELOPER02.MathiasDie.local, MATHIASDIE.LOCAL
Jun 25, 2009 The Kerberos client received a KRB_AP_ERR_MODIFIED error from the server frontdesk1-pc$. The target name used was RPCSS/Frontdesk1.await.local. 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 account other than the account the target service is using. Please ensure that the target SPN is registered on, and only registered on, the account used by the server. This error can also happen when the target service is using a different password for the target service account than what the Kerberos Key Distribution Center (KDC) has for the target service account. Please ensure that the service on the server and the KDC are both updated to use the current password. If the server name is not fully qualified, and the target domain (AWAIT.LOCAL) is different from the client domain (AWAIT.LOCAL), check if there are identically named server accounts in these two domains, or use the fully-qualified name to identify the server. Jul 08, 2009 The kerberos client received a KRB_AP_ERR_MODIFIED error from the server DLN-SAGE-GS-01$. The target name used was RPCSS/lon-nms-01.fnys.co.uk. 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 (FNYS.CO.UK), and the client realm. Please contact your system administrator. Jul 13, 2009 The kerberos client received a KRB_AP_ERR_MODIFIED error from the server host/rt001sbs.rooftech.local. The target name used was RPCSS/lynndell8200.rooftech.local. This indicates