Documentacion De Politicas Seguridad

3.- POLÍTICAS DE SEGURIDAD

3.1 GENERALIDADES

La seguridad informática ha tomado gran auge, debido a las cambiantes condiciones y nuevas plataformas tecnológicas disponibles. La posibilidad de interconectarse a través de redes, ha abierto nuevos horizontes a las empresas para mejorar su productividad y poder explorar más allá de las fronteras nacionales, lo cual lógicamente ha traído consigo, la aparición de nuevas amenazas para los sistemas de información. Estos riesgos que se enfrentan han llevado a que se desarrolle un documento de directrices que orientan en el uso adecuado de estas destrezas tecnológicas y recomendaciones para obtener el mayor provecho de estas ventajas, y evitar el uso indebido de la mismas, lo cual puede ocasionar serios problemas a los bienes, servicios y operaciones de la empresa

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Related Documentation

For more information, see these Oracle resources:

■ Oracle Database Backup and Recovery Quick Start Guide

■ Oracle Database Backup and Recovery Advanced User's Guide

■ Oracle Database Backup and Recovery Reference

■ Oracle Database SQL Reference

■ Oracle Database Utilities

Many of the examples in this book use the sample schemas of the seed database, which

is installed by default when you install Oracle. Refer to Oracle Database Sample Schemas

for information on how these schemas were created and how you can use them

yourself.

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Backup and Recovery Overview 1-1

1

Backup and Recovery Overview

This chapter provides a general overview of backup and recovery concepts, the files in

an Oracle database related to backup and recovery, and the tools available for making

backups of your database, recovering from data loss or other error, and maintaining

records of your backups.

This chapter includes the following topics:

■ What is Backup and Recovery?

■ Backup and Recovery: Basic Concepts

■ The Database Recovery Process: Basic Concepts

■ Forms of Data Recovery

■ Backup and Recovery with RMAN

■ Automatic Disk-Based Backup and Recovery: The Flash Recovery Area

■ Oracle Flashback Technology: Alternatives to Point-in-Time Recovery

■ Matching Failures to Backup and Recovery Techniques

■ System Requirements for Backup and Recovery Methods

■ Feature Comparison of Backup Methods

What is Backup and Recovery?

In general, backup and recovery refers to the various strategies and procedures

involved in protecting your database against data loss and reconstructing the database

after any kind of data loss.

Physical Backups and Logical Backups

A backup is a copy of data from your database that can be used to reconstruct that

data. Backups can be divided into physical backups and logical backups.

Physical backups are backups of the physical files used in storing and recovering your

database, such as datafiles, control files, and archived redo logs. Ultimately, every

physical backup is a copy of files storing database information to some other location,

whether on disk or some offline storage such as tape.

Logical backups contain logical data (for example, tables or stored procedures)

exported from a database with an Oracle export utility and stored in a binary file, for

later re-importing into a database using the corresponding Oracle import utility.

What is Backup and Recovery?

1-2 Backup and Recovery Basics

Physical backups are the foundation of any sound backup and recovery strategy.

Logical backups are a useful supplement to physical backups in many circumstances

but are not sufficient protection

...