Novell ZENWORKS ENDPOINT SECURITY MANAGEMENT 3.5 Manuale utente

Novell®

www.novell.com

novdocx (en) 13 May 2009

AUTHORIZED DOCUMENTATION

ZENworks Endpoint Security Client 3.5 User Guide

ZENworks

Endpoint Security Management

3.5

March 31, 2009

Endpoint Security Client 3.5 User Guide

novdocx (en) 13 May 2009

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4ZENworks Endpoint Security Client 3.5 User Guide

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Contents 5

Contents

novdocx (en) 13 May 2009

About This Guide 7

1 Introduction 9

1.1 Security Enforcement for Mobile Computers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 NDIS Layer Firewall Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Endpoint Security Client 3.5 Overview 11

2.1 ESM Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2 Logging In to the Endpoint Security Client 3.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 Using the Endpoint Security Client 3.5 15

3.1 Moving Among Network Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Changing Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.1 Saving a Network Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.2 Saving a Wi-Fi Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.3 Removing a Saved Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3 Changing Firewall Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4 Data Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.4.1 Managing Files on Fixed Disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.4.2 Managing Files on Removable Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5 Updating Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.6 Viewing Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.7 Overriding a Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.8 Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6ZENworks Endpoint Security Client 3.5 User Guide

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About This Guide 7

novdocx (en) 13 May 2009

About This Guide

This Novell®ZENworks®Endpoint Security Client 3.5 User Guide is written to instruct the end-user

on the operation of the Endpoint Security Client 3.5 for Windows* XP* and Windows 2000*.

The information in this guide is organized as follows:

Chapter 1, “Introduction,” on page 9

Chapter 2, “Endpoint Security Client 3.5 Overview,” on page 11

Chapter 3, “Using the Endpoint Security Client 3.5,” on page 15

Audience

This guide can be sent to all employees in the enterprise to help them understand how to use the

Endpoint Security Client 3.5.

Feedback

We want to hear your comments and suggestions about this manual and the other documentation

included with this product. Please use the User Comments feature at the bottom of each page of the

online documentation, or go to the Novell Documentation Feedback site (http://www.novell.com/

documentation/feedback.html) and enter your comments there.

Additional Documentation

ZENworks Endpoint Security Management is supported by other documentation (in both PDF and

HTML formats) that you can use to learn about and implement the product. For additional

documentation, see the ZENworks Endpoint Security Management 3.5 documentation Web site

(http://www.novell.com/documentation/zesm35).

Documentation Conventions

In Novell documentation, a greater-than symbol (>) is used to separate actions within a step and

items in a cross-reference path.

A trademark symbol (®, TM, etc.) denotes a Novell trademark. An asterisk (*) denotes a third-party

trademark.

When a single pathname can be written with a backslash for some platforms or a forward slash for

other platforms, the pathname is presented with a backslash. Users of platforms that require a

forward slash, such as Linux*, should use forward slashes as required by your software.

8ZENworks Endpoint Security Client 3.5 User Guide

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Introduction

novdocx (en) 13 May 2009

Introduction

Novell®ZENworks®Endpoint Security Management (ESM) is designed to protect corporate data

assets, through a centrally managed tool called the Endpoint Security Client. The Endpoint Security

Client 3.5 is installed on Windows XP and Windows 2000 enterprise computers and enforces

security policies written and sent down through the ESM management and distribution system. This

allows large enterprises and small businesses to create, deploy, enforce, and monitor computer

security policies on computers inside and outside of the corporate security perimeter.

For Windows Vista computers, see ZENworks Endpoint Security Client 4.0 User Guide.

The following sections contain additional information:

Section 1.1, “Security Enforcement for Mobile Computers,” on page 9

Section 1.2, “NDIS Layer Firewall Protection,” on page 9

1.1 Security Enforcement for Mobile Computers

Security is enforced both globally and by network location. Each location listed in a security policy

determines the user's permissions in that network environment and determines which firewall

settings are activated. The firewall settings determine which networking ports, network addresses,

and applications are granted network access and how that access is permitted.

Figure 1-1 ESM Adjusts Security Settings Based on the Detected Network Environment

Normal operations of the Endpoint Security Client 3.5 are transparent to the user, after the network

environments have been defined. Occasionally, Endpoint Security Client 3.5 protective measures

can interrupt normal operation; when this occurs, messages and hyperlinks display to notify the user

about the security policy, what protective steps have been taken, and refer them to additional

information to help correct the issue.

1.2 NDIS Layer Firewall Protection

In securing mobile devices, ESM is superior to typical personal firewall technologies that operate

only in the application layer or as a firewall-hook driver. ESM client security is integrated into the

Network Driver Interface Specification (NDIS) driver for each network interface card (NIC),

10 ZENworks Endpoint Security Client 3.5 User Guide

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providing security protection from the moment traffic enters the computer. Differences between

ESM and application-layer firewalls and filter drivers are illustrated in Figure 1-2, “Effectiveness of

an NDIS-Layer Firewall,” on page 10.

Figure 1-2 Effectiveness of an NDIS-Layer Firewall

Security decisions and system performance are optimized when security implementations operate at

the lowest appropriate layer of the protocol stack. With the Endpoint Security Client 3.5, unsolicited

traffic is dropped at the lowest levels of the NDIS driver stack by means of Adaptive Port Blocking

(stateful packet inspection) technology. This approach protects against protocol-based attacks,

including unauthorized port scans, SYN Flood attacks, and others.

It is recommended that you follow all operation and maintenance recommendations in this

document, in order to ensure that the endpoint security environment is protected.

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