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# Domain -->Compatibility Security-->File Realm

Tasks Related Topics Attributes

## Overview

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. Use this page to define several attributes that govern the use of the File realm. The File realm is deprecated in this release of WebLogic Server.

## Tasks

Setting Up Compatibility Security: Main Steps

Configuring the File Realm

## Related Topics

Introduction to WebLogic Security

Managing WebLogic Security

Securing WebLogic Resources

Programmimg WebLogic Security

Developing Security Providers for WebLogic Server

Securing a Production Environment

The Security topics in the WebLogic Server 8.1 Upgrade Guide

Security FAQ

The Security page in the WebLogic Server documentation

## Attributes

Attribute Label | Description | Value Constraints
--- | --- | ---
Caching Realm | The name of an alternate security realm to be used in this WebLogic server domain. If none is specified, only the File realm can be used. | Configurable: yes Readable: yes Writable: yes
Max Users | The maximum number of users (1-1000) supported by File realm. | Minimum: `1` Maximum: `10000` Default: `1000` Configurable: yes Readable: yes Writable: yes
Max Groups | The maximum number of groups (1-1000) supported by the File realm. | Minimum: `1` Maximum: `10000` Default: `1000` Configurable: yes Readable: yes Writable: yes
Max ACLs | The maximum number of positive access control lists (ACLs) (1-10000) supported by the File realm. A warning is issued when this number is reached. | Minimum: `1` Maximum: `10000` Default: `1000` Configurable: yes Readable: yes Writable: yes