Linux - Maximum Linux Security (Anonymous - 2001).pdf - linux-pratique - musli_com

M AX IMUM

S ECURITY

SECOND EDITION

Anonymous

with revisions by John Ray

201 West 103rd Street, Indianapolis, Indiana, 46290

L INUX

2001 by Sams Publishing

retrieval system, or transmitted by any means, electronic, mechanical, photo-

copying, recording, or otherwise, without written permission from the pub-

lisher. No patent liability is assumed with respect to the use of the information

contained herein. Although every precaution has been taken in the preparation

of this book, the publisher and author assume no responsibility for errors or

omissions. Nor is any liability assumed for damages resulting from the use of

the information contained herein.

International Standard Book Number: 0-672-32134-3

Library of Congress Catalog Card Number: 00-111262

Printed in the United States of America

First Printing: June 2001

04 03 02 01

A CQUISITIONS E DITOR

Shelley Johnston Markanday

D EVELOPMENT E DITOR

Scott D. Meyers

M ANAGING E DITOR

Charlotte Clapp

P ROJECT E DITOR

Leah Kirkpatrick

C OPY E DITOR

Michael Henry

I NDEXER

Rebecca Salerno

4 3 2 1

P ROOFREADER

Daniel Ponder

Trademarks

All terms mentioned in this book that are known to be trademarks or service

marks have been appropriately capitalized. Sams cannot attest to the accuracy

of this information. Use of a term in this book should not be regarded as

affecting the validity of any trademark or service mark.

T ECHNICAL E DITORS

Jason Byars

Steve Epstein

T EAM C OORDINATOR

Amy Patton

Warning and Disclaimer

Every effort has been made to make this book as complete and as accurate as

possible, but no warranty or fitness is implied. The information provided is on

an “as is” basis. The author(s) and the publisher shall have neither liability nor

responsibility to any person or entity with respect to any loss or damages aris-

ing from the information contained in this book or from the use of the CD or

programs accompanying it.

M EDIA D EVELOPER

Dan Scherf

I NTERIOR D ESIGNER

Gary Adair

C OVER D ESIGNER

Aren Howell

Maximum Linux Security, Second Edition

Contents at a Glance

Introduction 1

Part I Linux Security Basics 7

1 Introducing Linux Security 9

2hysical Security 29

3 Installation Issues 59

4 Basic Linux System Administration 95

Part II Linux User Security 137

5assword Attacks 139

6 Data Attacks 191

Part III Linux Network Security 219

7 Malicious Code 221

8 Sniffers and Electronic Eavesdropping 251

9 Scanners 281

10 Spoofing 325

Part IV Linux Internet Security 345

11 FTP Security 347

12 Mail Security 367

13 Telnet and SSH Security 399

14 Web Server Security 435

15 Secure Web Protocols 479

16 Secure Web Development 503

17 File Sharing Security 531

18 Denial-of-Service Attacks 549

19 Linux and Firewalls 583

20 Intrusion Detection 611

21 Logs and Audit Trails 633

22 Disaster Recovery 663

Part V Appendixes 685

Ainux Security Command Reference 687

Binux Security Index—Past Linux Security Issues 723

COther Useful Linux Security Utilities/Applications 741

Dinux/Unix Security Tools 767

EGlossary 797

Index 837

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