Kerberos Policy

Active Directory Auditing Tool

The Who, Where and When information is very important for an administrator to have complete knowledge of all activities that occur on their Active Directory. This helps them identify any desired / undesired activity happening. ADAudit Plus assists an administrator with this information in the form of reports. In real-time, ensure critical resources in the network like the Domain Controllers are audited, monitored and reported with the entire information on AD objects - Users, Groups, GPO, Computer, OU, DNS, AD Schema and Configuration changes with 200+ detailed event specific GUI reports and email alerts.

Object Access » Kerberos Policy

A brief look at configuring Kerberos Policy settings

The Kerberos version 5 authentication protocol is the default mechanism that authenticates users logging into the domain and evaluates the authorization data required for a user to access and perform operations on resources on the domain. It is recommended that you reduce the shelf life of Kerberos tickets so you reduce the risk of a legitimate user's credentials being stolen by an attacker trying to login to your domain. The down side to this is the authorization overhead. In most environments, these settings should remain the same.

These policy settings are located in >Computer Configuration>Windows Settings>Security Settings>Account Policies>Kerberos Policy.

The following list is from a Microsoft document and comprises of implementation and best practices considerations, policy location, default values for the server type or GPO, relevant differences in operating system versions, security considerations (including the possible settings vulnerabilities of each setting), countermeasures you can take, and the potential impact of each setting.

Topic Description
Enforce user logon restrictions Describes the best practices, location, values, policy management, and security considerations for the Enforce user logon restrictions security policy setting.
Maximum lifetime for service ticket Describes the best practices, location, values, policy management, and security considerations for the Maximum lifetime for service ticket security policy setting.
Maximum lifetime for user ticket Describes the best practices, location, values, policy management, and security considerations for the Maximum lifetime for user ticket policy setting.
Maximum lifetime for user ticket renewal Describes the best practices, location, values, policy management, and security considerations for the Maximum lifetime for user ticket renewal security policy setting.
Maximum tolerance for computer clock synchronization Describes the best practices, location, values, policy management, and security considerations for the Maximum tolerance for computer clock synchronization security

About ADAudit Plus

ADAudit Plus is a real time change auditing software that helps keep your Active Directory, Azure AD, Windows file servers, NetApp filers, EMC file systems, Synology file systems, Windows member servers, and workstations secure and compliant. With ADAudit Plus, you can get visibility into:

  • Authorized and unauthorized AD management changes
  • User logons, logoffs, and account lockouts
  • GPO changes
  • Group attribute and membership changes
  • OU changes
  • Privileged access and permission changes
  • Azure AD logons, and changes to roles, groups, and applications
  • PowerShell scripts and modules

among other things.

There are more than 200 event-specific reports, and you can configure instant email alerts. You can also export the reports to XLS, HTML, PDF and CSV formats to assist in interpretation and forensics. For more information on ADAudit Plus, visit: https://www.manageengine.com/active-directory-audit/.

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