Networking Overview.ppt (Networking Overview)

1 Networking Overview Copyright © Oracle Corporation, 2002. All rights reserved. Objectives After completing this lesson, you should be able to do the following: • Explain the solutions in Oracle9i that can be used to manage complex networks • Describe Oracle networking add-on solutions 1-2 Copyright © Oracle Corporation, 2002. All rights reserved. Network Environment Challenges • • • • • 1-3 Configuring the network environment Maintaining the network Tuning, troubleshooting, and monitoring the network Implementing security in the network Integrating legacy systems Copyright © Oracle Corporation, 2002. All rights reserved. Simple Network: Two-Tier Network Client Server • • 1-5 Network connects client and server Client and server speak the same language or protocol Copyright © Oracle Corporation, 2002. All rights reserved. Simple to Complex Network: N-Tier Network Client • • • 1-6 Network Middle tier Server Client can be a thin client or a PC Middle tier can contain applications and services Server holds actual data Copyright © Oracle Corporation, 2002. All rights reserved. Complex Network TCP/IP SSL TCP/IP SSL TCP/IP TCP/IP Named Pipes TCP/IP 1-7 Copyright © Oracle Corporation, 2002. All rights reserved. Oracle9i Networking Solutions • • • • • 1-8 Connectivity Directory Services Scalability Security Accessibility Copyright © Oracle Corporation, 2002. All rights reserved. Connectivity: Key Features of Oracle Net Services • • • • • • 1-9 Protocol independence Comprehensive platform support Integrated GUI administration tools Multiple configuration options Tracing and diagnostic toolset Basic security Copyright © Oracle Corporation, 2002. All rights reserved. Connectivity: Oracle Net Services Administration and configuration Client 1-10 Oracle Net Oracle Net Protocol Protocol Any platform Any platform Copyright © Oracle Corporation, 2002. All rights reserved. Server Connectivity: Database Connectivity with HTTP Web browser 1-11 HTTP Copyright © Oracle Corporation, 2002. All rights reserved. Oracle9i Directory Services: Directory Naming • • 1-12 Process of resolving a network alias using an LDAP-compliant directory server Clients must be configured to use the LDAP compliant server Copyright © Oracle Corporation, 2002. All rights reserved. Directory Services: Oracle Internet Directory • • Oracle’s LDAP compliant directory service Provides the following features: – Integrates tightly with Oracle9i – Simplifies network administration – Provides a secure and reliable directory structure 1-13 Copyright © Oracle Corporation, 2002. All rights reserved. Scalability: Oracle Shared Server • • • • • 1-14 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 Copyright © Oracle Corporation, 2002. All rights reserved. Scalability: Oracle Connection Manager Oracle Connection Manager offers: • Multiplexing of connections • Cross-protocol connectivity • Network access control 1-15 Copyright © Oracle Corporation, 2002. All rights reserved. Scalability: Oracle Connection Manager 2 1 3 Oracle Connection Manager Server 1-17 Copyright © Oracle Corporation, 2002. All rights reserved. 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 1-18 Copyright © Oracle Corporation, 2002. All rights reserved. Advanced Security Encryption Corporate earnings are up 45% this quarter 1 Corporate earnings are up 45% this quarter 3 Oracle Advanced Security Installed Oracle Advanced Security Decrypt Installed Server Client 2 Encrypt fdh37djf246gs’b[da,\ssk 1-19 Copyright © Oracle Corporation, 2002. All rights reserved. Security: Oracle Net Services and Firewalls • • • • Oracle works with key firewall vendors to provide firewall support Oracle Net Firewall Proxy Kit allows firewall vendors to provide connection support for Oracle environments Oracle Net Firewall Proxy is based on Oracle Connection Manager Oracle supports two categories of firewalls: – Proxy-based firewalls – Stateful packet inspection firewalls 1-20 Copyright © Oracle Corporation, 2002. All rights reserved. Accessibility: Heterogeneous Services • • 1-21 Enables access of legacy data as if it resides in a single, local relational database Enables Oracle procedure calls to access nonOracle systems, services, or APIs Copyright © Oracle Corporation, 2002. All rights reserved. Accessibility: External Procedures • • • • 1-22 Functions written in a 3GL language that can be called from PL/SQL Allows the developer more flexibility than SQL or PL/SQL provide Listener can listen for external procedure calls Connections to external procedure can be configured during or after server installation Copyright © Oracle Corporation, 2002. All rights reserved. Oracle Net Services Configuration and Administration Tools • Oracle Net Manager – Used for configuring and managing Oracle Net – Client- or server-based tool – Integrated with Oracle Enterprise Manager • • Oracle Net Configuration Assistant Oracle Net Control utilities – Listener Control utility – Oracle Connection Manager Control utility – Oracle Names Control utility 1-23 Copyright © Oracle Corporation, 2002. All rights reserved. Oracle Net Manager 1-24 Copyright © Oracle Corporation, 2002. All rights reserved. Oracle Net Configuration Assistant 1-25 Copyright © Oracle Corporation, 2002. All rights reserved. Summary In this lesson, you should have learned how to: • Explain Oracle’s solutions for managing complex networks: – – – – – • Oracle Net Services HTTP Connectivity Oracle Internet Directory Oracle Shared Server Connection Manager Describe Oracle’s add-on solutions: – Oracle Advanced Security – Heterogeneous Services 1-26 Copyright © Oracle Corporation, 2002. All rights reserved.

Networking Overview

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