Linux Network Administrator's Guide, 3/e

Description:

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.

 

Table of Contents:

Preface

1. Introduction to Networking

     History

     TCP/IP Networks

     Linux Networking

     Maintaining Your System

2. Issues of TCP/IP Networking

     Networking Interfaces

     IP Addresses

     The Internet Control Message Protocol

3. Configuring the Serial Hardware

     Communications Software for Modem Links

     Accessing Serial Devices

     Using the Configuration Utilities

     Serial Devices and the login: Prompt

4. Configuring TCP/IP Networking

     Understanding the /proc Filesystem

5. Name Service and Configuration

     The Resolver Library

     How DNS Works

     Alternatives to BIND

6. The Point-to-Point Protocol

     PPP on Linux

     Running pppd

     Using Options Files

     Using chat to Automate Dialing

     IP Configuration Options

     Link Control Options

     General Security Considerations

     Authentication with PPP

     Debugging Your PPP Setup

     More Advanced PPP Configurations

     PPPoE Options in Linux

7. TCP/IP Firewall

     Methods of Attack

     What Is a Firewall?

     What Is IP Filtering?

     Netfilter and iptables

     iptables Concepts

     Setting Up Linux for Firewalling

     Using iptables

     The iptables Subcommands

     Basic iptables Matches

     A Sample Firewall Configuration

     References

8. IP Accounting

     Configuring the Kernel for IP Accounting
     Configuring IP Accounting

     Using IP Accounting Results

     Resetting the Counters

     Flushing the Rule Set

     Passive Collection of Accounting Data

9. IP Masquerade and Network Address Translation

     Side Effects and Fringe Benefits

     Configuring the Kernel for IP Masquerade

     Configuring IP Masquerade

     Handling Nameserver Lookups

     More About Network Address Translation

10. Important Network Features

     The inetd Super Server

     The tcpd Access Control Facility

     The xinetd Alternative

     The Services and Protocols Files

     Remote Procedure Call

     Configuring Remote Login and Execution

11. Administration Issues with Electronic Mail

     What Is a Mail Message?

     How Is Mail Delivered?

     Email Addresses

     How Does Mail Routing Work?

     Mail Routing on the Internet

12. sendmail

     Installing the sendmail Distribution

     sendmail Configuration Files

     sendmail.cf Configuration Language

     Creating a sendmail Configuration

     sendmail Databases

     Testing Your Configuration

     Running sendmail

     Tips and Tricks

     More Information

13. Configuring IPv6 Networks

     The IPv4 Problem and Patchwork Solutions

     IPv6 as a Solution

14. Configuring the Apache Web Server

     Apache HTTPD Server-An Introduction

     Configuring and Building Apache

     Configuration File Options

     VirtualHost Configuration Options

     Apache and OpenSSL

     Troubleshooting

15. IMAP

     IMAP-An Introduction

     Cyrus IMAP

16. Samba

     Samba-An Introduction

17. OpenLDAP

     Understanding LDAP

     Obtaining OpenLDAP

18. Wireless Networking

     History

     The Standards

     802.11b Security Concerns

Appendix: Example Network: The Virtual Brewery

Index