Maximum lifetime for user ticket renewal
Applies To: Windows Server 2008, Windows Server 2008 R2
This security policy reference topic for the IT professional describes the best practices, location, values, and security considerations for this policy setting.
Reference
The Maximum lifetime for user ticket renewal policy setting determines the period of time (in days) during which a user’s ticket-granting ticket can be renewed.
The possible values for this Group Policy setting are:
A user-defined number of days from 0 through 99,999
Not defined
Best practices
If the value for this policy setting is too high, users may be able to renew very old user ticket-granting tickets. If the value is 0, ticket-granting tickets never expire.
It is advisable to set Maximum lifetime for user ticket renewal to 7 days.
Location
GPO_name\Computer Configuration\Windows Settings\Security Settings\Account Policies\Kerberos Policy\
Default values
| Server type or GPO | Default value |
|---|---|
Default Domain Policy |
7 days |
Default Domain Controller Policy |
Not defined |
Stand-Alone Server Default Settings |
Not applicable |
DC Effective Default Settings |
7 days |
Member Server Effective Default Settings |
Not applicable |
Client Computer Effective Default Settings |
Not applicable |
Operating system version differences
There are no differences in this policy for Windows versions beginning with Windows Server 2003.
Security considerations
This section describes how an attacker might exploit a feature or its configuration, how to implement the countermeasure, and the possible negative consequences of countermeasure implementation.
Vulnerability
If the value for the Maximum lifetime for user ticket renewal setting is too high, users might be able to renew very old user tickets.
Countermeasure
Configure the Maximum lifetime for user ticket renewal setting to 7 days.
Potential impact
None. This is the default configuration.