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Approved
Over the past few days, some of our readers have encountered the krb_ap_err_modified server host error. This problem occurs for several reasons. Let’s discuss this now. Kerberos owner got KRB_AP_ERR_MODIFIED error on host / wss1. With this method, the password used to secure the Kerberos service ticket is different from the password of the destination computer on the Internet. Typically, these are computer accounts of the same name in the recipient zone (DOMAIN.
Kerberos client got KRB_AP_ERR_MODIFIED error from server host / wss1. This means that the password used to encrypt the Kerberos service ticket was always different from the password of the corresponding server. This usually happens because you have computer accounts with the same name in all target domains (DOMAIN.
Permission. To resolve this issue, update the registry on every system that will participate in the Kerberos authorization process, including client computers. We recommend that you upgrade all that are usually associated with your Windows systems, especially if your valuable users need to log into multiple domains or forests.
This article will help your business solve the problem associated with the fact that thisThe particular Kerberos client received a KRB_AP_ERR_MODIFIED error from the server.
Symptoms
When accessing the virtual IP / NLB name, the website visitor may be prompted for a username and password and may be added to the local system workshop log after an error:
To use setspn, actually run the setspn command from an efficient elevated command prompt. To open an elevated Command Prompt, click the Start button, right-click Command Prompt, and select Run as Administrator. For examples of the best use of this command, see Examples. There is usually no need to change SPNs.
Event ID: 4
Source: Kerberos
Type: error
“Kerberos client received KRB_AP_ERR_MODIFIED error directly from server host / myserver.domain.com. This specifies what password is used for the Kerberos secure service ticket and not on the target server. This is usually because they can be referenced as computer accounts in the target zone (domain.com) and in the client zone. Contact your system administrator. “
Reason
Approved
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When you access an IIS 6 website that supports Integrated Windows Authentication, you may experience the following issues:
- Incompatible DNS name res. The problem is common in any good nlb environment that uses multiple IPs or network adapters. Users
- This does not create local NTFS credentials.
- The website uses a pool application with incorrect permission settings.
Resolution
The following tests must be performed to troubleshoot errors:
Make sure the correct NTFS options are set for the IIS functions.
Integrated Windows Authentication (IIS 6.0)
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Install Kerberos KDC Internet and client. Download and install the new krb5 server package.Modify the file / etc / krb5. conf file.Modify the KDC. conf file.Assign administrator rights.Build the best principal.Create a database.Start our Kerberos service.
Make sure each node in the cluster is correctly grouped with DNS settings.
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Make sure the node is configured with the correct settings for the application pool:
Configure application pool with IIS 6.0 ID (IIS 6.0)
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Make sure Internet Explorer has the correct sharing settings.
Additional Information
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Today I discovered that a specific domain controller running Windows Server R2 does not open the Group Plan Management Console. The error displays “Access Denied” once. Active Directory console opens bno problem.
Another domain controller in most domains is working fine.
In the server activity log, the problem with event ID 4 is displayed with the following message:
- The Kerberos client received a trustworthy KRB_AP_ERR_MODIFIED error from the most important gnserver $. The target name can be ldap / gnserver.mydomain.local. This indicates that the target system was unable to decrypt the ticket issued by the customer. This can happen when the primary brand name (SPN) of the target server is registered to information other than the account that the particular target service uses. Ensure that for many destinations the SPN is always registered for the funding used by the server and is only registered for the account. This error can also occur if the Sad Victim service uses a different code from the target service account that the Kerberos Key Distribution Center (KDC) has for the target satisfaction account. Make sure the website on the server and the KDC are updated to use the current password. If the hosting names are not fully defined and our target domain (MYDOMAIN.LOCAL) is different due to client domain (MYDOMAINï »¿.LOCAL), check if there are identical server sides in these two domains, or actually use qualified names to identify the server. Ï “ï” ¿
This Knowledge Base article recommends that you remove the affected computer object from the healthy directory. However, given that the IT idea in question is regulatory, I’m not sure if this is a smarter approach.
Everyone has already faced a similar situation before, or does he have an idea in which direction to move? ï »¿
Install the Kerberos KDC client and hosting. Download and install our own krb5 server package.Modify the new / etc / krb5. conf file.Modify the KDC. conf file.Assign administrator rights.Create this principal.Create a database.Start a specific Kerberos service.
Changed April 16, 2015 20:34 UTC
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