Linux Network Administrator's Guide

Linux Network Administrator's Guide

The Linux Network Administrator's Guide, Third Edition dispenses all the practical advice you need to join a network. Along with some hardware considerations, this highly acclaimed guide takes an in-depth look at all of the essential networking software that comes with the operating system--including basic infrastructure (TCP/IP, wireless networking, firewalling) and the most popular services on Linux systems.

But as the follow-up to a classic, the third edition of the Linux Network Administrator's Guide does more than just spruce up the basics. It also provides the very latest information on the following cutting-edge services:

• Wireless hubs
• OpenLDAP
• FreeS/WAN
• IMAP
• Spam filtering
• OpenSSH
• BIND
• IPv6

Featuring a litany of insider tips and techniques, the Linux Network Administrator's Guide, Third Edition is an invaluable companion for any network administrator interested in integrating Linux into their Windows environment

Authored by Terry Dawson, Tony Bautts, and Gregor N. Purdy, the Linux Network Administrator's Guide, Third Edition emerged from the Linux Documentation Project (LDP). The LDP's goal is to centralize all of the issues of Linux documentation, ranging from online documentation topics such as installing, using, and running Linux.

1. Chapter 1 Introduction to Networking

   1. History

   2. TCP/IP Networks

   3. Linux Networking

   4. Maintaining Your System

2. Chapter 2 Issues of TCP/IP Networking

   1. Networking Interfaces

   2. IP Addresses

   3. The Internet Control Message Protocol

3. Chapter 3 Configuring the Serial Hardware

   1. Communications Software for Modem Links

   2. Accessing Serial Devices

   3. Using the Configuration Utilities

   4. Serial Devices and the login: Prompt

4. Chapter 4 Configuring TCP/IP Networking

   1. Understanding the /proc Filesystem

5. Chapter 5 Name Service and Configuration

   1. The Resolver Library

   2. How DNS Works

   3. Alternatives to BIND

6. Chapter 6 The Point-to-Point Protocol

   1. PPP on Linux

   2. Running pppd

   3. Using Options Files

   4. Using chat to Automate Dialing

   5. IP Configuration Options

   6. Link Control Options

   7. General Security Considerations

   8. Authentication with PPP

   9. Debugging Your PPP Setup

   10. More Advanced PPP Configurations

   11. PPPoE Options in Linux

7. Chapter 7 TCP/IP Firewall

   1. Methods of Attack

   2. What Is a Firewall?

   3. What Is IP Filtering?

   4. Netfilter and iptables

   5. iptables Concepts

   6. Setting Up Linux for Firewalling

   7. Using iptables

   8. The iptables Subcommands

   9. Basic iptables Matches

   10. A Sample Firewall Configuration

   11. References

8. Chapter 8 IP Accounting

   1. Configuring the Kernel for IP Accounting

   2. Configuring IP Accounting

   3. Using IP Accounting Results

   4. Resetting the Counters

   5. Flushing the Rule Set

   6. Passive Collection of Accounting Data

9. Chapter 9 IP Masquerade and Network Address Translation

   1. Side Effects and Fringe Benefits

   2. Configuring the Kernel for IP Masquerade

   3. Configuring IP Masquerade

   4. Handling Nameserver Lookups

   5. More About Network Address Translation

10. Chapter 10 Important Network Features

    1. The inetd Super Server

    2. The tcpd Access Control Facility

    3. The xinetd Alternative

    4. The Services and Protocols Files

    5. Remote Procedure Call

    6. Configuring Remote Login and Execution

11. Chapter 11 Administration Issues with Electronic Mail

    1. What Is a Mail Message?

    2. How Is Mail Delivered?

    3. Email Addresses

    4. How Does Mail Routing Work?

    5. Mail Routing on the Internet

12. Chapter 12 sendmail

    1. Installing the sendmail Distribution

    2. sendmail Configuration Files

    3. sendmail.cf Configuration Language

    4. Creating a sendmail Configuration

    5. sendmail Databases

    6. Testing Your Configuration

    7. Running sendmail

    8. Tips and Tricks

    9. More Information

13. Chapter 13 Configuring IPv6 Networks

    1. The IPv4 Problem and Patchwork Solutions

    2. IPv6 as a Solution

14. Chapter 14 Configuring the Apache Web Server

    1. Apache HTTPD Server—An Introduction

    2. Configuring and Building Apache

    3. Configuration File Options

    4. VirtualHost Configuration Options

    5. Apache and OpenSSL

    6. Troubleshooting

15. Chapter 15 IMAP

    1. IMAP—An Introduction

    2. Cyrus IMAP

16. Chapter 16 Samba

    1. Samba—An Introduction

17. Chapter 17 OpenLDAP

    1. Understanding LDAP

    2. Obtaining OpenLDAP

18. Chapter 18 Wireless Networking

    1. History

    2. The Standards

    3. 802.11b Security Concerns

1. Appendix A Example Network: The Virtual Brewery

   1. Connecting the Virtual Subsidiary Network

2. Colophon