McAfee FIREWALL 2.1-GETTING STARTED Manuel utilisateur

McAfee Firewall

Getting Started

Version 2.10

of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated

into any language in any form or by any means without the written permission of Network Associates,

Inc.

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* ActiveHelp, Bomb Shelter, Building a World of Trust, CipherLink, Clean-Up, Cloaking, CNX,

Compass 7, CyberCop, CyberMedia, Data Security Letter, Discover, Distributed Sniffer System, Dr

Solomon’s, Enterprise Secure Cast, First Aid, ForceField, Gauntlet, GMT, GroupShield, HelpDesk,

Hunter, ISDN Tel/Scope, LM 1, LANGuru, Leading Help Desk Technology, Magic Solutions, MagicSpy,

MagicTree, Magic University, MagicWin, MagicWord, McAfee, McAfee Associates, MoneyMagic, More

Power To You, Multimedia Cloaking, NetCrypto, NetOctopus, NetRoom, NetScan, NetShield, NetShield,

NetStalker, Net Tools, Network Associates, Network General, Network Uptime!, NetXRay, Nuts & Bolts,

PC Medic, PCNotary, PGP, PGP (Pretty Good Privacy), PocketScope, Pop-Up, PowerTelnet, Pretty

Good Privacy, PrimeSupport, RecoverKey, RecoverKey-International, ReportMagic, RingFence, Router

PM, Safe & Sound, SalesMagic, SecureCast, Service Level Manager, ServiceMagic, Site Meter, Sniffer,

SniffMaster, SniffNet, Stalker, Statistical Information Retrieval (SIR), SupportMagic, Switch PM,

TeleSniffer, TIS, TMach, TMeg, Total Network Security, Total Network Visibility, Total Service Desk,

Total Virus Defense, T-POD, Trusted Mach, Trusted Mail, Uninstaller, Virex, Virex-PC, Virus Forum,

ViruScan, VirusScan, VShield, WebScan, WebShield, WebSniffer, WebStalker WebWall, and ZAC 2000

are registered trademarks of Network Associates and/or its affiliates in the US and/or other countries. All

other registered and unregistered trademarks in this document are the sole property of their respective

owners.

LICENSE AGREEMENT

NOTICE TO ALL USERS: CAREFULLY READ THE FOLLOWING LEGAL AGREEMENT

("AGREEMENT"), FOR THE LICENSE OF SPECIFIED SOFTWARE ("SOFTWARE") BY

NETWORK ASSOCIATES, INC. ("McAfee"). BY CLICKING THE ACCEPT BUTTON OR

INSTALLING THE SOFTWARE, YOU (EITHER AN INDIVIDUAL OR A SINGLE ENTITY)

CONSENT TO BE BOUND BY AND BECOME A PARTY TO THIS AGREEMENT. IF YOU DO

NOT AGREE TO ALL OF THE TERMS OF THIS AGREEMENT, CLICK THE BUTTON THAT

INDICATES THAT YOU DO NOT ACCEPT THE TERMS OF THIS AGREEMENT AND DO NOT

INSTALL THE SOFTWARE. (IF APPLICABLE, YOU MAY RETURN THE PRODUCT TO THE

PLACE OF PURCHASE FOR A FULL REFUND.)

1. License Grant. Subject to the payment of the applicable license fees, and subject to the terms and

conditions of this Agreement, McAfee hereby grants to you a non-exclusive, non-transferable right

to use one copy of the specified version of the Software and the accompanying documentation (the

"Documentation"). You may install one copy of the Software on one computer, workstation,

personal digital assistant, pager, "smart phone" or other electronic device for which the Software

was designed (each, a "Client Device"). If the Software is licensed as a suite or bundle with more

than one specified Software product, this license applies to all such specified Software products,

subject to any restrictions or usage terms specified on the applicable price list or product packaging

that apply to any of such Software products individually.

Issued May 2000/ McAfee Firewall v2.10

(i.e., the required number of licenses would equal the number of distinct inputs to the

multiplexing or pooling software or hardware "front end"). If the number of Client Devices or

seats that can connect to the Software can exceed the number of licenses you have obtained, then

you must have a reasonable mechanism in place to ensure that your use of the Software does not

exceed the use limits specified for the licenses you have obtained. This license authorizes you to

make or download one copy ofthe Documentation for each Client Device or seat that is licensed,

provided that each such copy contains all of the Documentation’s proprietary notices.

c. Volume Licenses. If the Software is licensed with volume license terms specified in the

applicable price list or product packaging for the Software, you may make, use and install as

many additional copies of the Software on the number of Client Devices as the volume license

authorizes. You must have a reasonable mechanism in place to ensure that the number of Client

Devices on which the Software has been installed does not exceed the number of licenses you

have obtained. This license authorizes you to make or downloadone copy of the Documentation

for each additional copy authorized by the volume license, provided that each such copy contains

all of the Documentation’s proprietary notices.

2. Term. This Agreement is effective for an unlimited duration unless and until earlier terminated as

set forth herein. This Agreement will terminate automatically if you fail to comply with any of the

limitations or other requirements described herein. Upon any termination or expiration of this

Agreement, you must destroy all copies of the Software and the Documentation. You may

terminate this Agreement at any point by destroying all copies of the Software and the

Documentation.

3. Updates. For the time period specified in the applicable price list or product packaging for the

Software you are entitled to download revisions or updates to the Software when and as McAfee

publishes them via its electronic bulletin board system, website or through other online services.

For a period of ninety (90) days from the date of the original purchase of the Software, you are

entitled to download one (1) revision or upgrade to the Software when and as McAfee publishes it

via its electronic bulletin board system, website or through other online services. After the

specified time period, you have no further rights to receive any revisions or upgrades without

purchase of a new license or annual upgrade plan to the Software.

4. Ownership Rights. The Software is protected by United States copyright laws and international

treaty provisions. McAfee and its suppliers own and retain all right, title and interest in and to the

Software, including all copyrights, patents, trade secret rights, trademarks and other intellectual

property rights therein. Your possession, installation, or use of the Software does not transfer to

you any title to the intellectual property in the Software, and you will not acquire any rights to the

Software except as expressly set forth in this Agreement. All copies of the Software and

Documentation made hereunder mustcontain the same proprietary notices that appear on and in the

Software and Documentation.

Getting Started iii

5. Restrictions. You may not rent, lease, loan or resell the Software. You may not permit third parties

to benefit from the use or functionality of the Software via a timesharing, service bureau or other

arrangement, except to the extent such use is specified in the applicable list price or product

packaging for the Software. You may not transfer any of the rights granted to you under this

Agreement. You may not reverse engineer, decompile, or disassemble the Software, except to the

extent the foregoing restriction is expressly prohibited by applicable law. You may not modify, or

create derivative works based upon, the Software in whole or in part. You may not copy the

Software or Documentation except as expressly permitted in Section 1 above. You may not remove

any proprietary notices or labels on the Software. All rights not expressly set forth hereunder are

reserved by McAfee. McAfee reserves the right to periodically conduct audits upon advance

written notice to verify compliance with the terms of this Agreement.

6. Warranty and Disclaimer

a. Limited Warranty. McAfee warrants that for sixty (60) days from the date of original purchase

the media (e.g., diskettes) on which the Software is contained will be free from defects in

materials and workmanship.

b. Customer Remedies. McAfee’s and its suppliers’entire liability and your exclusive remedy for

any breach of the foregoing warranty shall be, at McAfee’s option, either (i) return of the

purchase price paid for the license, if any, or (ii) replacement of the defective media in which the

Software is contained. You must return the defective media to McAfee at your expense with a

copy of your receipt. This limited warranty is void if the defect has resulted from accident,

abuse, or misapplication. Any replacement media will be warranted for the remainder of the

original warranty period. Outside the United States, this remedy is not available to the extent

McAfee is subject to restrictions under United States export control laws and regulations.

c. Warranty Disclaimer. Except for the limited warranty set forth herein, THE SOFTWARE IS

PROVIDED "AS IS." TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE

LAW, MCAFEE DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,

INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND

NONINFRINGEMENT WITH RESPECT TO THE SOFTWARE AND THE

ACCOMPANYING DOCUMENTATION. YOU ASSUME RESPONSIBILITY FOR

SELECTING THE SOFTWARE TO ACHIEVE YOUR INTENDED RESULTS, AND FOR

THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED FROM THE SOFTWARE.

WITHOUT LIMITING THE FOREGOING PROVISIONS, MCAFEE MAKES NO

WARRANTY THAT THE SOFTWARE WILL BE ERROR-FREE OR FREE FROM

INTERRUPTIONS OR OTHER FAILURES OR THAT THE SOFTWARE WILL MEET

YOUR REQUIREMENTS. SOME STATES AND JURISDICTIONS DO NOT ALLOW

LIMITATIONS ON IMPLIED WARRANTIES, SO THE ABOVE LIMITATION MAY NOT

APPLY TO YOU. The foregoing provisions shall be enforceable to the maximum extent

permitted by applicable law.

iv McAfee Firewall

7. Limitation of Liability. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,

WHETHER IN TORT, CONTRACT, OR OTHERWISE, SHALL MCAFEE OR ITS SUPPLIERS

BE LIABLE TO YOU OR TO ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL,

INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING,

WITHOUT LIMITATION, DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE,

COMPUTER FAILURE OR MALFUNCTION, OR FOR ANY AND ALL OTHER DAMAGES

OR LOSSES. IN NO EVENT WILL MCAFEE BE LIABLE FOR ANY DAMAGES IN EXCESS

OF THE LIST PRICE MCAFEE CHARGES FOR A LICENSE TO THE SOFTWARE, EVEN IF

MCAFEE SHALL HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

THIS LIMITATION OF LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR

PERSONAL INJURY TO THE EXTENT THAT APPLICABLE LAW PROHIBITS SUCH

LIMITATION. FURTHERMORE, SOME STATES AND JURISDICTIONS DO NOT ALLOW

THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,

SO THIS LIMITATION AND EXCLUSION MAY NOT APPLY TO YOU. The foregoing

provisions shall be enforceable to the maximum extent permitted by applicable law.

8. United States Government. The Software and accompanying Documentation are deemed to be

"commercial computer software" and "commercial computer software documentation,"

respectively, pursuant to DFAR Section 227.7202 and FAR Section 12.212, as applicable. Any

use, modification, reproduction, release, performance, display or disclosure of the Software and

accompanying Documentation by the United States Government shall be governed solely by the

terms of this Agreement and shall be prohibited except to the extent expressly permitted by the

terms of this Agreement.

9. Export Controls. Neither the Software nor the Documentation and underlying information or

technology may be downloaded or otherwise exported or re-exported (i) into (or to a national or

resident of ) Cuba, Iran, Iraq, Libya, North Korea, Sudan, Syria or any other country to which the

United States has embargoed goods; or (ii) to anyone on the United States Treasury Department’s

list of Specially Designated Nations or the United States Commerce Department’s Table of Denial

Orders. By downloading or using the Software you are agreeing to the foregoing and you are

certifying that you are not located in, under the control of, or a national or resident of any such

country or on any such list.

IN ADDITION, YOU SHOULD BE AWARE OF THE FOLLOWING: EXPORT OF THE

SOFTWARE MAY BE SUBJECT TO COMPLIANCE WITH THE RULES AND

REGULATIONS PROMULGATED FROM TIME TO TIME BY THE BUREAU OF EXPORT

ADMINISTRATION, UNITED STATES DEPARTMENT OF COMMERCE, WHICH

RESTRICT THE EXPORT AND RE-EXPORT OF CERTAIN PRODUCTS AND TECHNICAL

DATA. IF THE EXPORT OF THE SOFTWARE IS CONTROLLED UNDER SUCH RULES

AND REGULATIONS, THEN THE SOFTWARE SHALL NOT BE EXPORTED OR

RE-EXPORTED, DIRECTLY OR INDIRECTLY, (A) WITHOUT ALL EXPORT OR

RE-EXPORT LICENSES AND UNITED STATES OR OTHER GOVERNMENTAL

APPROVALS REQUIRED BY ANY APPLICABLE LAWS, OR (B) IN VIOLATION OF ANY

APPLICABLE PROHIBITION AGAINST THE EXPORT OR RE-EXPORT OF ANY PART OF

THE SOFTWARE.

Getting Started v

SOME COUNTRIES HAVE RESTRICTIONS ON THE USE OF ENCRYPTION WITHIN

THEIR BORDERS, OR THE IMPORT OR EXPORT OF ENCRYPTION EVEN IF FOR ONLY

TEMPORARY PERSONAL OR BUSINESS USE. YOU ACKNOWLEDGE THAT THE

IMPLEMENTATION AND ENFORCEMENT OF THESE LAWS IS NOT ALWAYS

CONSISTENT AS TO SPECIFIC COUNTRIES. ALTHOUGH THE FOLLOWING

COUNTRIES ARE NOT AN EXHAUSTIVE LIST THERE MAY EXIST RESTRICTIONS ON

THE EXPORTATION TO, OR IMPORTATION OF, ENCRYPTION BY: BELGIUM, CHINA

(INCLUDING HONG KONG), FRANCE, INDIA, INDONESIA, ISRAEL, RUSSIA, SAUDI

ARABIA, SINGAPORE, AND SOUTH KOREA. YOU ACKNOWLEDGE IT IS YOUR

ULTIMATE RESPONSIBILITY TO COMPLY WITH ANY AND ALL GOVERNMENT

EXPORT AND OTHER APPLICABLE LAWS AND THAT MCAFEE HAS NO FURTHER

RESPONSIBILITY AFTER THE INITIAL SALE TO YOU WITHIN THE ORIGINAL

COUNTRY OF SALE.

10. High Risk Activities. The Software is not fault-tolerant and is not designed or intended for use in

hazardous environments requiring fail-safe performance, including without limitation, in the

operation of nuclear facilities, aircraft navigation or communication systems, air traffic control,

weapons systems, direct life-support machines, or any other application in which the failure of the

Software could lead directly to death, personal injury, or severe physical or property damage

(collectively, "High Risk Activities"). McAfee expressly disclaims any express or implied

warranty of fitness for High Risk Activities.

11. Miscellaneous. This Agreement is governed by the laws of the United States and the State of

California, without reference to conflict of laws principles. The application of the United Nations

Convention ofContracts for the International Sale of Goods is expressly excluded. This Agreement

sets forth all rights for the user of the Software and is the entire agreement between the parties. This

Agreement supersedes any other communications with respect to the Software and Documentation.

This Agreement may not be modified except by a written addendum issued by a duly authorized

representative of McAfee. No provision hereof shall be deemed waived unless such waiver shall

be in writing and signed by McAfee or a duly authorized representative of McAfee. If any

provision of this Agreement is held invalid, the remainder of this Agreement shall continue in full

force and effect. The parties confirm that it is their wish that this Agreement has been written in

the English language only.

12. McAfee Customer Contact. If you have any questions concerning these terms and conditions, or

if you would like to contact McAfee for any other reason, please call (408) 988-3832, fax (408)

970-9727, or write: McAfee Software, 3965 Freedom Circle, Santa Clara, California 95054.

http://www.mcafee.com.

Statements made to you in the course of this sale are subject to the Year 2000 Information and

Readiness Disclosure Act (Public Law 105-271). In the case of a dispute, this Act may reduce your

legal rights regarding the use of any statements regarding Year 2000 readiness, unless otherwise

specified in your contract or tariff.

vi McAfee Firewall

Getting Started vii

Table of Contents

Chapter 1. Welcome to McAfee Firewall . . . . . . . . . . . . . . . . . . . . . . . . .11

About McAfee Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

How McAfee Firewall works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

About McAfee Firewall documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

McAfee Firewall online Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

How will McAfee Firewall help me? . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

How is my PC at risk on the Internet? . . . . . . . . . . . . . . . . . . . . . . . . . . .14

What other protection do I need? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Are there any data packets that McAfee Firewall cannot stop? . . . . . .15

What network devices does McAfee Firewall support? . . . . . . . . . . . . .15

What protocols can McAfee Firewall filter? . . . . . . . . . . . . . . . . . . . . . . .15

How can I still be harassed, even with McAfee Firewall? . . . . . . . . . . . .16

Chapter 2. Installing McAfee Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . .17

System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

About Winsock 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Installing McAfee Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Troubleshooting installation problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Step 1: Clean up your hard drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Step 2: Remove temporary files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Step 3: Close other software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Chapter 3. McAfee Firewall Configurations . . . . . . . . . . . . . . . . . . . . . . .21

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Control applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Default settings for applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Default settings for System activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Password Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Instructions for Administrators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Table of Contents

viii McAfee Firewall

Configuring Network, Display and Logging Controls . . . . . . . . . . . . . . .25

Configuring Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Configuring System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Configuration after Adding/Removing Network Devices . . . . . . . . . . . .28

Using Password Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Chapter 4. Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Appendix A. Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

How to Contact McAfee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

McAfee training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Getting Started ix

Table of Contents

x McAfee Firewall

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