DBAII_R1_1_Les01_E

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Networking Overview : 

Networking Overview

Objectives : 

Objectives After completing this lesson, you should be able to do the following: Explain solutions included with Oracle9i for managing complex networks Describe Oracle networking add-on solutions

Network Environment Challenges : 

Network Environment Challenges Configuring the network environment Maintaining the network Tuning, troubleshooting, and monitoring the network Implementing security in the network Integrating legacy systems

Simple Network: Two-Tier : 

Simple Network: Two-Tier Network connects client and server Client and server speak the same “language” or protocol Network Client Server

Simple to Complex Network: N-Tier : 

Simple to Complex Network: N-Tier Client can be a thin client or a PC Middle tier can contain applications and services Server holds actual data Network Middle tier Network Client Server

Complex Network : 

Complex Network TCP/IP TCP/IP DECnet TCP/IP DECnet APPC/LU6.2

Oracle9i Networking Solutions : 

Oracle9i Networking Solutions Connectivity Directory Services Scalability Security Accessibility

Connectivity: Oracle Net Services : 

Connectivity: Oracle Net Services Protocol independence Comprehensive platform support Integrated GUI administration tools Multiple configuration options Tracing and diagnostic toolset Basic security

Connectivity: Oracle Net Services : 

Connectivity: Oracle Net Services Protocol Oracle Net Client Server Administration and configuration Protocol Oracle Net

Connectivity: Database Connectivity with IIOP and HTTP : 

Connectivity: Database Connectivity with IIOP and HTTP Database connectivity can be achieved using the following additional protocols: Internet Inter-ORB Protocol (IIOP) Hypertext Transfer Protocol (HTTP) Web browser Oracle9i IIOP, HTTP

Directory Naming : 

Directory Naming Directory naming is the process of resolving a network alias using an LDAP-compliant directory server. Clients must be configured to use the LDAP compliant server.

Directory Services: Oracle Internet Directory : 

Directory Services: Oracle Internet Directory Oracle Internet Directory is Oracle’s LDAP compliant directory service. It provides the following features: Integrates tightly with Oracle9i Simplifies network administration Provides a secure and reliable directory structure

Scalability: Oracle Shared Server : 

Scalability: Oracle Shared Server The Oracle Shared Server enables a large number of users to connect to a database simultaneously. Database resources are shared resulting in efficient memory and processing usage. Connections are routed via a dispatcher. Server processes are not dedicated to each client. Server processes serve client processes as needed.

Scalability: Connection Manager : 

Scalability: Connection Manager Connection Manager offers: Multiplexing of connections Cross-protocol connectivity Network access control

Scalability: Connection Manager : 

Scalability: Connection Manager Server ConnectionManager 2

Security: Advanced Security : 

Security: Advanced Security Encryption Encodes between network nodes DES, RSA, 3DES Authentication Authenticates users through third-party services and Secure Sockets Layer (SSL) Kerberos, Radius, CyberSafe Data Integrity Ensures data integrity during transmission MD5, SHA

Advanced Security Encryption : 

Advanced Security Encryption Client Corporate earnings are up 45% this quarter 1 Decrypt Server 2 Encrypt fdh37djf246gs’b[da,\ssk 3 Corporate earnings are up 45% this quarter Oracle Advanced Security Installed Oracle Advanced Security Installed

Security: Oracle Net Services and Firewalls : 

Security: Oracle Net Services and Firewalls Oracle works with key firewall vendors to provide firewall support Oracle Net Application Proxy Kit allows firewall vendors to provide connection support for Oracle environments Oracle Net Application Proxy is based on Connection Manager Oracle supports two categories of firewalls: Proxy based firewalls Stateful packet inspection firewalls

Accessibility: Heterogeneous Services : 

Accessibility: Heterogeneous Services Enables access of legacy data as if it resides in a single, local relational database Enables Oracle procedure calls to access non-Oracle systems, services, or APIs

Accessibility: External Procedures : 

Accessibility: External Procedures External procedures are functions written in a 3GL language that can be called from PL/SQL. Support of external procedures allows the developer more flexibility than SQL or PL/SQL provide. The Oracle listener can listen for external procedure calls. Connections to external procedure can be configured during or after server installation.

Oracle Net Configuration Assistant : 

Oracle Net Configuration Assistant

Oracle Net Manager : 

Oracle Net Manager

Summary : 

Summary In this lesson, you should have learned how to: Explain Oracle’s solutions for managing complex networks: Oracle Net Services IIOP and HTTP Connectivity Oracle Internet Directory Oracle Shared Server Connection Manager Describe Oracle’s add-on solutions: Oracle Advanced Security Heterogeneous Services

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