O_Reilly_The_Secure_Shell_The_Definitive_Guide.pdf

SSH, The Secure Shell: The Definitive Guide

By Daniel J. Barrett , Richard Silverman

Publisher: O'Reilly

• Reviews

• Reader Reviews

Pub Date: January 2001

ISBN: 0-596-00011-1

Pages: 558

• Errata

Preface

Protect Your Network with SSH

Intended Audience

Reading This Book

Our Approach

Which Chapters Are for You?

Supported Platforms

Disclaimers

Conventions Used in This Book

Comments and Questions

Acknowledgments

Chapter 1. Introduction to SSH

Section 1.1. What Is SSH?

Section 1.2. What SSH Is Not

Section 1.3. The SSH Protocol

Section 1.4. Overview of SSH Features

Section 1.5. History of SSH

Section 1.6. Related Technologies

Section 1.7. Summary

Chapter 2. Basic Client Use

Section 2.1. A Running Example

Section 2.2. Remote Terminal Sessions with ssh

Section 2.3. Adding Complexity to the Example

Section 2.4. Authentication by Cryptographic Key

Section 2.5. The SSH Agent

Section 2.6. Connecting Without a Password or Passphrase

Section 2.7. Miscellaneous Clients

Section 2.8. Summary

Chapter 3. Inside SSH

Section 3.1. Overview of Features

Section 3.2. A Cryptography Primer

Section 3.3. The Architecture of an SSH System

Section 3.4. Inside SSH-1

Section 3.5. Inside SSH-2

Section 3.6. As-User Access (userfile)

Section 3.7. Randomness

Section 3.8. SSH and File Transfers (scp and sftp)

Section 3.9. Algorithms Used by SSH

Section 3.10. Threats SSH Can Counter

Section 3.11. Threats SSH Doesn't Prevent

Section 3.12. Summary

Chapter 4. Installation and Compile-Time Configuration

Section 4.1. SSH1 and SSH2

Section 4.2. F-Secure SSH Server

Section 4.3. OpenSSH

Section 4.4. Software Inventory

Section 4.5. Replacing R-Commands with SSH

Section 4.6. Summary

Chapter 5. Serverwide Configuration

Section 5.1. The Name of the Server

Section 5.2. Running the Server

Section 5.3. Server Configuration: An Overview

Section 5.4. Getting Ready: Initial Setup

Section 5.5. Letting People in: Authentication and Access Control

Section 5.6. User Logins and Accounts

Section 5.7. Subsystems

Section 5.8. History, Logging, and Debugging

Section 5.9. Compatibility Between SSH-1 and SSH-2 Servers

Section 5.10. Summary

Chapter 6. Key Management and Agents

Section 6.1. What Is an Identity?

Section 6.2. Creating an Identity

Section 6.3. SSH Agents

Section 6.4. Multiple Identities

Section 6.5. Summary

Chapter 7. Advanced Client Use

Section 7.1. How to Configure Clients

Section 7.2. Precedence

Section 7.3. Introduction to Verbose Mode

Section 7.4. Client Configuration in Depth

Section 7.5. Secure Copy with scp

Section 7.6. Summary

Chapter 8. Per-Account Server Configuration

Section 8.1. Limits of This Technique

Section 8.2. Public Key-Based Configuration

Section 8.3. Trusted-Host Access Control

Section 8.4. The User rc File

Section 8.5. Summary

Chapter 9. Port Forwarding and X Forwarding

Section 9.1. What Is Forwarding?

Section 9.2. Port Forwarding

Section 9.3. X Forwarding

Section 9.4. Forwarding Security: TCP-wrappers and libwrap

Section 9.5. Summary

Chapter 10. A Recommended Setup

Section 10.1. The Basics

Section 10.2. Compile-Time Configuration

Section 10.3. Serverwide Configuration

Section 10.4. Per-Account Configuration

Section 10.5. Key Management

Section 10.6. Client Configuration

Section 10.7. Remote Home Directories (NFS, AFS)

Section 10.8. Summary

Chapter 11. Case Studies

Section 11.1. Unattended SSH: Batch or cron Jobs

Section 11.2. FTP Forwarding

Section 11.3. Pine, IMAP, and SSH

Section 11.4. Kerberos and SSH

Section 11.5. Connecting Through a GatewayHost

Chapter 12. Troubleshooting and FAQ

Section 12.1. Debug Messages: Your First Line of Defense

Section 12.2. Problems and Solutions

Section 12.3. Other SSH Resources

Section 12.4. Reporting Bugs

Chapter 13. Overview of Other Implementations

Section 13.1. Common Features

Section 13.2. Covered Products

Section 13.3. Table of Products

Section 13.4. Other SSH-Related Products

Chapter 14. SSH1 Port by Sergey Okhapkin (Windows)

Section 14.1. Obtaining and Installing Clients

Section 14.2. Client Use

Section 14.3. Obtaining and Installing the Server

Section 14.4. Troubleshooting

Section 14.5. Summary

Chapter 15. SecureCRT (Windows)

Section 15.1. Obtaining and Installing

Section 15.2. Basic Client Use

Section 15.3. Key Management

Section 15.4. Advanced Client Use

Section 15.5. Forwarding

Section 15.6. Troubleshooting

Section 15.7. Summary

Chapter 16. F-Secure SSH Client (Windows, Macintosh)

Section 16.1. Obtaining and Installing

Section 16.2. Basic Client Use

Section 16.3. Key Management

Section 16.4. Advanced Client Use

Section 16.5. Forwarding

Section 16.6. Troubleshooting

Section 16.7. Summary

Chapter 17. NiftyTelnet SSH (Macintosh)

Section 17.1. Obtaining and Installing

Section 17.2. Basic Client Use

Section 17.3. Troubleshooting

Section 17.4. Summary

Appendix A. SSH2 Manpage for sshregex

SSHREGEX(1) SSH2

Appendix B. SSH Quick Reference

Section 2.1. Legend

Section 2.2. sshd Options

Section 2.3. sshd Keywords

Section 2.4. ssh and scp Keywords

Section 2.5. ssh Options

Section 2.6. scp Options

Section 2.7. ssh-keygen Options

Section 2.8. ssh-agent Options

Section 2.9. ssh-add Options

Section 2.10. Identity and Authorization Files

Section 2.11. Environment Variables

Colophon

Index

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