Red Hat NETWORK 2.8 - MANAGEMENT Manual de usuario descargar pdf (Pagina 4)

July 2004 Page 4 Dell Enterprise Product Group

Section 2

Introduction

Updating enterprise systems with the latest security, enhancements, and bug fixes is critical

in today’s IT environment. The Red Hat® Network provides the ability to deploy, manage,

and update packages for the Red Hat Enterprise Linux® operating system (OS)—

potentially saving time and support costs while keeping systems secure and up to date.

Internet access to the Red Hat Network is included as part of a subscription to Red Hat

Enterprise Linux software, enabling organizations to manage their enterprise systems

regularly with scheduled updates or automatically as updates become available. By

obtaining updates directly from Red Hat, administrators can procure patches, security

fixes, and enhancements that have been tested and authenticated by Red Hat engineers.

For a large number of servers, updates can consume a significant amount of bandwidth.

Additionally, some administrators need to distribute their own unique packages across

their infrastructure. To address these requirements, Red Hat offers the Satellite Server

model, which allows all subscribed Red Hat Network content and functionality to be

available locally (see Figure 1). Content can be downloaded from the Internet as updates

become available, or CD-ROM images of the updated content can be downloaded

separately and then loaded locally. Once the updates have been loaded, the Satellite Server

can be completely disconnected from the Internet, allowing Red Hat OS–based systems to

be updated through the Satellite Server while isolated or disconnected from the Internet.

Figure 1: Two Methods for updating servers from the Red Hat Network: The hosted model

(right) and the Satellite Server model (left)

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Red Hat NETWORK 2.8 - MANAGEMENT Manual de usuario Pagina 4