McAfee INTERNET GUARD DOG 3.0 User manual

Internet Guard Dog
User’s Guide
Version 3.0

COPYRIGHT
Copyright © 2000 Network Associates, Inc. and its Affiliated Companies. All Rights Reserved. No part
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.
TRADEMARK ATTRIBUTIONS
* 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, Net Shield, 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 February 2000/ Internet Guard Dog v3.0

(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 of the 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 authorizesyou to make or download one 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 must contain the same proprietary notices that appear on and in the
Software and Documentation.
User’s Guide 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 Internet Guard Dog

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.
User’s Guide 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 of Contracts 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 supersedesany 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 [phone], 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 Internet Guard Dog

User’s Guide vii
Table of Contents
Chapter1. WelcometoInternetGuardDog™......................1
UsingInternetGuardDog ..........................................1
HowInternetGuardDogworks..................................2
UserSetup ..................................................2
VirusScan ...................................................2
Activity Logs . . . . ............................................2
SecurityCheck ...............................................3
InternetGuardDogandyouronlineconnection....................3
InternetGuardDogfeatures ....................................3
What’snewinInternetGuardDog ...................................5
Otherfeaturesandenhancements ...............................6
About Internet Guard Dog documentation . . . . . . . . . . . . . . ...............6
How this book is organized . . . . . ...............................7
UsingInternetGuardDoghelp .................................7
Chapter2. InstallingInternetGuardDog™ .......................11
Systemrequirements .............................................11
Installing Internet Guard Dog . . . . . . . . ..............................12
Troubleshooting installation problems ..............................12
Step1:Cleanupyourharddrive ...............................13
Step 2: Remove temporary files . . ..............................13
Step3:Closeothersoftware...................................14
Installing McAfee VirusScan from the Internet Guard Dog CD . . . . . . . . . . .14
Chapter 3. Quick Tour of Internet Guard Dog™ . . . . . . . . . . . . . . . . . . .15
UsingtheInternetGuardDogInterview ..............................15
What information does Internet Guard Dog ask me to enter? . . . . . . . .16
HowInternetGuardDogAdministratorworks ....................17
HowpasswordprotectionworksinGuardDog ...................18
UsingtheInternetGuardDogHomescreen ..........................18
HowUserSetupworks .......................................20
HowInternetFilteringworks ..................................21

Table of Contents
viii Internet Guard Dog
HowPrivacyandSecurityoptionswork .........................22
Options ....................................................23
UsingMcAfeeVirusScan......................................23
Viewing Activity Logs . . . . . . . . . . ..............................23
UpdatingInternetGuardDogandVirusScan .....................24
PerformingaSecurityCheck ..................................25
WhatInternetGuardDogdoeswhileyourPCisrunning................26
UsingtheInternetGuardDogshortcutmenu ....................26
Responding to Internet Guard Dog alert messages . ..............27
Using Browser Buddy to retrieve or store your Web site passwords .27
Usingfileencryption .........................................29
Chapter4. PrivacyFeatures ...................................31
WhatCookieBlockerdoes ........................................31
Responding to a Cookie Blocker alert message . . . . ..............32
Why should I change my Cookie Blocker settings? . ..............33
WhatIdentityProtectordoes ......................................33
Responding to an Identity Protector alert message . ..............34
Why should I change my Identity Protector settings? . . . . . . . . . . . . .35
WhatWebTrailCleanerdoes ......................................36
Responding to the Web Trail Cleaner alert message ..............36
Why should I change my Web Trail Cleaner settings? . . . . . . . . . . . . .37
WhatSearchFilterdoes ..........................................37
Chapter5. SecurityFeatures ..................................39
WhatGatekeeperdoes ...........................................39
Responding to Gatekeeper alert messages . . . . . . . . ..............39
Why should I change my Gatekeeper settings? . . . . . ..............42
WhatFileGuardiandoes ..........................................43
Responding to File Guardian alert messages . . . . . . ..............43
Why should I change my File Guardian settings? . . . ..............46
WhatPasswordManagerdoes .....................................47
Chapter6. McAfeeVirusScan..................................49
WhatisMcAfeeVirusScan?........................................49
StartingVirusScan...........................................49

User’s Guide ix
Table of Contents
VirusScanCentralwindow ....................................50
VirusScanClassicwindow ....................................50
ConfiguringVirusScan .......................................51
AppendixA. InternetSecurityandPrivacy .......................55
NetworksandtheInternet .........................................55
TCP/IPisthesubsystem ......................................55
Whypackets?...............................................56
TheInternetandtheWeb…whatisthedifference? ................56
PrivacyandsecurityontheWeb ...............................57
WhydoesInternetprivacymattertome? ........................57
PrivacyontheWeb...............................................58
Whoissnooping? ...........................................58
Snoopingandsniffing ........................................58
Webserversandfirewalls.....................................58
WhatcanIdotokeepmystuffsafe?............................59
HowcanItellifaWebsiteissecure? ...........................59
Howdoesencryptionwork? ...................................60
SecurityontheWeb ..............................................61
Nastyapplets ...............................................62
CanIpreventprogramsfromaccessingtheInternet?..............62
Computer viruses and the Web . . . . . . . ..............................62
Arevirusesreallythatdangerous? .............................63
Typesofviruses.............................................63
HowcanmyPCbecomeinfectedwithavirus? ...................64
Frequently asked questions about Internet privacy . . . . . . ..............64
SourcesforInternetprivacyandsecurityinformation ..................66
Finding out about Internet hoaxes ..............................66
More information about computer viruses . . . . . . . . . ..............66
More information about security . ..............................67
More information about privacy . . ..............................67
Appendix B. Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
HowtoContactMcAfee ...........................................69
Customerservice............................................69

Table of Contents
x Internet Guard Dog
Technical support ...........................................70
McAfeetraining .............................................71