Oracle9i Net Services Administrator's Guide
Release 1 (9.0.1)

Part Number A90154-01
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What's New in Oracle Net Services?

Oracle9i Release 9.0 New Features in Oracle Net Services
Oracle8i New Features in Oracle Net Services

Part I Getting Started with Oracle Net Services

1 Networking Challenges in the Internet Age

What Is the Big Picture for Networking?
Oracle's Solution to Networking Issues
Internet and Intranet Scalability
Network Security
A Suite of Networking Components
Oracle Net Services
Oracle Advanced Security

2 Connectivity Concepts

Database Service and Database Instance Identification
Database Services
Database Instances
Service Accessibility
Enhanced Service Accessibility with Multiple Listeners
Service Handlers

3 Configuration Management Concepts

Configuration Models
Localized Configuration File Support
Directory Server Support
Directory Naming Overview
Naming Configuration Storage in a Directory Server
Directory Entries
Adding or Modifying Entries in the Directory Server
Client Connections Using Directory Naming
Oracle Net Configuration and Directory Server Design
Oracle Names Support
Oracle Names Overview
Administrative Regions
Oracle Names As Data Repository
Data Stored in an Oracle Names Server
Organization of Network Components
Multiple Regions to Decentralize Administrative Responsibilities
Differences Between Versions of Oracle Names
About Discovery

4 Architecture of Oracle Net Services

Oracle Net Stack Communication Architecture
Stack Communication for Client/Server Application Connections
Stack Communication for Java Application Connections
Stack Communication for Web Client Connections
Listener Architecture
Database Server Process Architecture
Shared Server Processes
Dedicated Server Processes
Oracle Connection Manager Architecture
A Complete Architecture

5 Configuration and Administration Tools Overview

Oracle Net Manager
Starting Oracle Net Manager
Navigating Oracle Net Manager
Oracle Net Manager Wizards
Oracle Net Configuration Assistant
Oracle Net Control Utilities
Listener Control Utility
Oracle Connection Manager Control Utility
Oracle Names Control Utility
Configuration and Administration Tasks at a Glance

6 Quick Start to Oracle Net Connections

Prerequisites to Establishing Connectivity
Task 1: Confirm Network Availability
Task 2: Start the Listener and the Database Server
Task 3: Configure the Client to Use a Net Service Name
Task 4: Connect to the Database

Part II Configuration and Administration of Oracle Net Services

7 Planning the Network

Deploying a Network Inside an Organization
Naming Methods
JDBC Drivers
Tuning and Performance
Deploying a Network for the Internet
Naming Methods
JDBC Drivers
Naming Considerations
Performance Considerations
Listener Queue Size
Session Data Unit Size for Data Transfer Optimization
Persistent Buffer Flushing for TCP/IP
Planning Summary

8 Setting Up Directory Server Usage

Directory Configuration Overview
Configuring Directory Usage During Installation
Directory Usage Configuration During a Custom Installation on the Server
Directory Usage Configuration During a Client Installation
Configuring Directory Usage After Installation
Adding Users to and Removing Users from the OracleNetAdmins Group

9 Configuring Naming Methods

Naming Method Configuration Overview
About Connect Descriptors
Naming Methods
Configuring the Local Naming Method
Configuring the tnsnames.ora File During Installation
Configuring the tnsnames.ora File After Installation
Configuring the Directory Naming Method
Directory Naming Method Configuration Steps
Modifying Connectivity Information for Database Service Entries
Configuring the Oracle Names Method
Task 1: Consider Oracle Names Options
Task 2: Install Necessary Components
Task 3: Create an Oracle Names Server
Task 4: Configure Clients and Database Servers To Use Oracle Names Servers
Task 5: (Optional) Configure Client Caches
Task 6: Configure the Listener
Task 7: Register Data with the Oracle Names Server
Task 8: Delegate Domains to Delegated Administrative Regions
Task 9: Specify Domain Hints to Forward Requests to Remote Oracle Names Servers
Task 10: Connect to the Database
Removing an Oracle Names Server
Configuring the Host Naming Method
Task 1: Configure the Listener with the Global Database Name
Task 2: Configure HOSTNAME as the First Naming Method
Task 3: Set Up Host Name Resolution Environment
Task 4: Connect to the Database
Configuring External Naming Methods
Configuring NIS

10 Exporting Naming Data to a Directory Server

Exporting Net Service Names from a tnsnames.ora File
Task 1: Create Structure in Directory Server
Task 2: Create Oracle Contexts
Task 3: Configure Directory Server Usage
Task 4: Export Objects To a Directory Server
Exporting Network Objects from an Oracle Names Server
Release 8.1.6 or Later Clients
Release 8.1.5 or Previous Clients
Exporting Data to a Directory Server
Configuring Oracle Names LDAP Proxy Servers
Considerations for Dissimilar DIT Structures

11 Configuring Profiles

Profile Configuration Overview
Profile Configuration During Installation
Configuring Client Attributes for Names Resolution
Configuring a Default Domain for Clients
Prioritizing Naming Methods
Routing Connection Requests
Configuring Database Access Control
Configuring Advanced Profile Information
Configuring Preferred Oracle Names Servers
Configuring External Naming Methods
Configuring Oracle Advanced Security

12 Configuring and Administering the Listener

Listener Configuration Overview
Listener Configuration During Installation
Customizing Listener Configuration
Configuring Listening Protocol Addresses
Configuring Protocol Addresses for Oracle9i JVM
Handling Large Volumes of Concurrent Connection Requests
Configuring Static Service Information
Configuring Password Authentication for the Listener
Configuring Service Registration
Listener Administration
Starting and Stopping the Listener
Monitoring Runtime Behavior
Monitoring Log Files

13 Configuring Oracle Connection Manager

Oracle Connection Manager Configuration Overview
Configuring Oracle Connection Manager
Configuring the Oracle Connection Manager Computer
Configuring Clients for Oracle Connection Manager
Configuring the Oracle Database Server for Oracle Connection Manager
Enabling Oracle Connection Manager Features
Enabling Session Multiplexing
Enabling Access Control
Enabling Protocol Conversion Support

14 Configuring Shared Server

Configuring Shared Server with the DISPATCHERS Parameter
Setting the Initial Number of Dispatchers
Enabling Connection Pooling
Allocating Resources
Using Shared Server on Clients
Overriding Shared Server on Clients

15 Enabling Advanced Features for Oracle Net Services

Configuring Advanced Network Address and Connect Data Information
Creating a List of Listener Protocol Addresses
Configuring Address List Parameters
Configuring Advanced Connect Data Parameters
Configuring Connection Load Balancing
Example: Connection Load Balancing for Shared Server Configuration
Example: Connection Load Balancing for Dedicated Server Configuration
Configuring Transparent Application Failover
What TAF Restores
TAF Database Configurations
TAF Implementation
Specifying the Instance Role for Primary and Secondary Instance Configurations
Configuring Session Data Unit
Client Configuration
Database Server Configuration
Configuring the VI Protocol for Application Web Server and Oracle Database Server Communication
Prerequisites to Using VI Protocol Support
Configuring a VI Protocol Address
Tuning VI
Configuring Connections to Non-Oracle Database Services
Configuring Oracle Net for External Procedures
Configuring Oracle Net for Oracle Heterogeneous Services
Configuring Oracle Net for an Oracle Rdb Database

Part III Testing and Troubleshooting Oracle Net Services

16 Establishing a Connection and Testing the Network

Connecting to a Database
Starting Oracle Net Services Components
Entering a Connect String
Initiating Connections
Testing the Network
Testing a Listener
Testing Oracle Connection Manager
Testing Configuration on the Database Server
Testing Network Connectivity from the Client
Testing an Oracle Names Server
Testing Network Objects with Oracle Net Manager or Oracle Names Control Utility

17 Troubleshooting Oracle Net Services

Diagnosing Oracle Net
Server Diagnostics
Client Diagnostics
Resolving the Most Common Error Messages for Oracle Net Services
Troubleshooting Directory Naming Errors
Oracle Names LDAP Proxy Server Error Reporting
Troubleshooting Tips from the Field for Oracle Net Services
Questions to Ask When Troubleshooting Oracle Net Services
Troubleshooting Network Problems Using Log and Trace Files
Logging Error Information for Oracle Net Services
Oracle Net Error Stacks
Oracle Net Services Log File Names
Setting Oracle Net Services Log Parameters
Setting Oracle Net Log Settings During Runtime of Control Utilities
Using Oracle Net Log Files
Analyzing Listener Log Files
Analyzing Oracle Connection Manager Logs
Oracle Net Tracing Error Information
Oracle Net Trace File Names
Setting Oracle Net Trace Parameters
Setting Oracle Net Trace Settings During Runtime of Control Utilities
Evaluating Oracle Net Traces
Contacting Oracle Support Services



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