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# Caching Realm: Permissions

Configuration Options Related Tasks Related Topics

Use this page to configure and enable the Permission cache for the Caching realm. To use the Caching realm, you need to use Compatibility security. The use of the Caching realm is deprecated in this release of WebLogic Server.

#### Configuration Options

Name | Description
--- | ---
Enable Permission Cache | Specifies whether the Permission cache should be enabled. By default, the Permission cache is enabled.
Permission Cache Size | The maximum number of permission lookups (between 17 and 65537) that should be cached. This attribute should be a prime number for best performance.
Permission Cache TTLPositive | The number of seconds (between 1 and a positive 32-bit integer) to retain the results of a successful permission lookup.
Permission Cache TTLNegative | The number of seconds (between 1 and a positive 32-bit integer) to retain the results of an unsuccessful permission lookup.

Related Tasks

- Configure Caching realms
- Enable the Permission cache
- Enable the Group cache
- Enable the Authentication cache
- Enable the User cache

Related Topics

- Using Compatibility Security