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Oracle® Fusion Middleware Installation Guide for Oracle Identity Management
11g Release 1 (

Part Number E12002-12
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3 Evaluating Single Sign-On Installations

This chapter includes the following topics:


Existing Oracle Single Sign-On 10g users are encouraged to upgrade to Oracle Access Manager 11g for a more advanced single sign-on solution.

3.1 Important Notes for Oracle Portal 11g Installations

New installations of Oracle Portal 11g require Oracle Single Sign-On 10g during the installation process. Such Oracle Portal 11g users should use their existing Oracle Single Sign-On 10g installation. If you must perform a new installation of Single Sign-On 10g, consider hardware issues, system corruption, and any unforeseen issues. Oracle recommends that you follow the system framework supported by 10g for a new Single Sign-On 10g installation.

After installing Oracle Portal 11g, you may upgrade Oracle Single Sign-On 10g to Oracle Access Manager 11g. For more information, see Oracle Fusion Middleware Upgrade Guide for Oracle Identity Management.

3.2 Before You Begin

Before performing any upgrade or installation, you should read the following documents to ensure that your Oracle Fusion Middleware environment meets the minimum installation requirements for the products you are installing.

3.2.1 Review System Requirements and Specifications

Oracle Fusion Middleware System Requirements and Specifications document is available at:

This document covers information such as hardware and software requirements, database schema requirements, minimum disk space and memory requirements, and required system libraries, packages, or patches.

3.2.2 Review Certification Information

Oracle Fusion Middleware Supported System Configurations document is available at:

This document contains certification information related to supported 32-bit and 64-bit operating systems, databases, web servers, LDAP servers, adapters, IPv6, JDKs, and third-party products.

3.2.3 Review Interoperability and Compatibility Information

For interoperability and compatibility issues that may arise when installing, refer to Oracle Fusion Middleware Interoperability and Compatibility Guide.

This document contains important information regarding the ability of Oracle Fusion Middleware products to function with previous versions of other Oracle Fusion Middleware, Oracle, or third-party products. This information is applicable to both new Oracle Fusion Middleware users and existing users who are upgrading their existing environment.

3.3 Single Sign-On Options

Following are the options available for a single sign-on solution:

3.4 Single Sign-On Preparation Considerations

Consider the following when preparing for a single sign-on solution:

3.5 Oracle Single Sign-On Known Limitations

Following are the Oracle Single Sign-On known limitations:

3.6 Recommendations

Oracle recommends that you carefully consider the following requirements and options when choosing a single sign-on solution: