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# Domain: Compatibility Security: File Realm

Configuration Options Related Tasks Related Topics

Use this page to define several attributes that govern the use of the File realm

The File realm stores user and group data for the purpose of authentication. By default, the File realm is set as the default security realm when using Compatibility security. The File realm is deprecated in this release of WebLogic Server.

#### Configuration Options

Name | Description
--- | ---
Caching Realm | The name of an alternate security realm to be used in this WebLogic server domain. A value of `(none)` means that only the File realm can be used. If a realm other than the File realm is used, the realm is specified by attaching the name of the realm to the CachingRealm MBean. The CachingRealm MBean then attaches to the Realm MBean. If the attribute has a value, an alternate security realm is used. If the attribute is null, only the File Realm can be used. Changes take effect after you redeploy the module or restart the server.
Max Users | The maximum number of users supported by the File realm. Minimum value: `1` Maximum value: `10000` Changes take effect after you redeploy the module or restart the server.
Max Groups | The maximum number of groups supported by the File realm. Minimum value: `1` Maximum value: `10000` Changes take effect after you redeploy the module or restart the server.
Max ACLs | The maximum number of positive access control lists (ACLs) supported by the File realm. A warning is issued when this number is reached. Minimum value: `1` Maximum value: `10000` Changes take effect after you redeploy the module or restart the server.

Related Tasks

- Set up Compatibility security
- Configure the File realm

Related Topics

- Using Compatibility Security