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Linux Network Administrator's Guideby Olaf Kirch
Synopses & Reviews
Linux, a Unix-compatible operating system that runs on personal computers and larger servers, is valued above all for its networking strengths. The Linux Network Administrator's Guide spells out all the information needed for joining a network, whether it's a simple UUCP connection or a full LAN with a Linux system serving as a firewall, an NFS or NIS file server, and a mail and news hub.
This book, which is one of the most successful to come from the Linux Documentation Project and remains freely distributable under its license, touches on all the essential networking software included with the operating system, plus some hardware considerations. Fully updated, the book now covers firewalls, including the use of ipchains and iptables (netfilter), masquerading, and accounting. Other new topics include Novell (NCP/IPX) support and INN (news administration). Original material on serial connections, UUCP, routing and DNS, mail and News, SLIP and PPP, NFS, and NIS has been thoroughly updated. Kernel options reflect the 2.2 kernel. However, some topics covered in other books (notably Samba and web server administration) are not in this book.
Book News Annotation:
Updates the 1995 guide written by Kirch as part of the Linux Documentation Project with new features of this freely distributable Unix operating system clone. Covers Linux history and configuration and use information for three types of networks: TCP/IP, UUCP, and IPX. Includes resources, an example network, useful cable configurations, and information on SAGE, the system administrators' guild. Offers a discount to first edition holders.
Annotation c. Book News, Inc., Portland, OR (booknews.com)
This introduction to networking on Linux now covers firewalls, including the use of ipchains and Netfilter, masquerading, and accounting. Other new topics in this second edition include Novell (NCP/IPX) support and INN (news administration).
About the Author
Kirch has a degree in Mathematics. He works for Caldera Systems, where he is responsible for much of the network related stuff as well as security issues.
Dawson is an amateur radio operator an Linux enthusiast. He has 15 years of professional experience in telecommunications and is currently engaged in network management research in the Telstra Research Laboratories.
Table of Contents
Preface; Purpose and Audience for This Book; Sources of Information; File System Standards; Standard Linux Base; About This Book; The Official Printed Version; Overview; Conventions Used in This Book; Submitting Changes; Acknowledgments; Chapter 1: Introduction to Networking; 1.1 History; 1.2 TCP/IP Networks; 1.3 UUCP Networks; 1.4 Linux Networking; 1.5 Maintaining Your System; Chapter 2: Issues of TCP/IP Networking; 2.1 Networking Interfaces; 2.2 IP Addresses; 2.3 Address Resolution; 2.4 IP Routing; 2.5 The Internet Control Message Protocol; 2.6 Resolving Host Names; Chapter 3: Configuring the Networking Hardware; 3.1 Kernel Configuration; 3.2 A Tour of Linux Network Devices; 3.3 Ethernet Installation; 3.4 The PLIP Driver; 3.5 The PPP and SLIP Drivers; 3.6 Other Network Types; Chapter 4: Configuring the Serial Hardware; 4.1 Communications Software for Modem Links; 4.2 Introduction to Serial Devices; 4.3 Accessing Serial Devices; 4.4 Serial Hardware; 4.5 Using the Configuration Utilities; 4.6 Serial Devices and the login: Prompt; Chapter 5: Configuring TCP/IP Networking; 5.1 Mounting the /proc Filesystem; 5.2 Installing the Binaries; 5.3 Setting the Hostname; 5.4 Assigning IP Addresses; 5.5 Creating Subnets; 5.6 Writing hosts and networks Files; 5.7 Interface Configuration for IP; 5.8 All About ifconfig; 5.9 The netstat Command; 5.10 Checking the ARP Tables; Chapter 6: Name Service and Resolver Configuration; 6.1 The Resolver Library; 6.2 How DNS Works; 6.3 Running named; Chapter 7: Serial Line IP; 7.1 General Requirements; 7.2 SLIP Operation; 7.3 Dealing with Private IP Networks; 7.4 Using dip; 7.5 Running in Server Mode; Chapter 8: The Point-to-Point Protocol; 8.1 PPP on Linux; 8.2 Running pppd; 8.3 Using Options Files; 8.4 Using chat to Automate Dialing; 8.5 IP Configuration Options; 8.6 Link Control Options; 8.7 General Security Considerations; 8.8 Authentication with PPP; 8.9 Debugging Your PPP Setup; 8.10 More Advanced PPP Configurations; Chapter 9: TCP/IP Firewall; 9.1 Methods of Attack; 9.2 What Is a Firewall?; 9.3 What Is IP Filtering?; 9.4 Setting Up Linux for Firewalling; 9.5 Three Ways We Can Do Filtering; 9.6 Original IP Firewall (2.0 Kernels); 9.7 IP Firewall Chains (2.2 Kernels); 9.8 Netfilter and IP Tables (2.4 Kernels); 9.9 TOS Bit Manipulation; 9.10 Testing a Firewall Configuration; 9.11 A Sample Firewall Configuration; Chapter 10: IP Accounting; 10.1 Configuring the Kernel for IP Accounting; 10.2 Configuring IP Accounting; 10.3 Using IP Accounting Results; 10.4 Resetting the Counters; 10.5 Flushing the Ruleset; 10.6 Passive Collection of Accounting Data; Chapter 11: IP Masquerade and Network Address Translation; 11.1 Side Effects and Fringe Benefits; 11.2 Configuring the Kernel for IP Masquerade; 11.3 Configuring IP Masquerade; 11.4 Handling Name Server Lookups; 11.5 More About Network Address Translation; Chapter 12: Important Network Features; 12.1 The inetd Super Server; 12.2 The tcpd Access Control Facility; 12.3 The Services and Protocols Files; 12.4 Remote Procedure Call; 12.5 Configuring Remote Login and Execution; Chapter 13: The Network Information System; 13.1 Getting Acquainted with NIS; 13.2 NIS Versus NIS+; 13.3 The Client Side of NIS; 13.4 Running an NIS Server; 13.5 NIS Server Security; 13.6 Setting Up an NIS Client with GNU libc; 13.7 Choosing the Right Maps; 13.8 Using the passwd and group Maps; 13.9 Using NIS with Shadow Support; Chapter 14: The Network File System; 14.1 Preparing NFS; 14.2 Mounting an NFS Volume; 14.3 The NFS Daemons; 14.4 The exports File; 14.5 Kernel-Based NFSv2 Server Support; 14.6 Kernel-Based NFSv3 Server Support; Chapter 15: IPX and the NCP Filesystem; 15.1 Xerox, Novell, and History; 15.2 IPX and Linux; 15.3 Configuring the Kernel for IPX and NCPFS; 15.4 Configuring IPX Interfaces; 15.5 Configuring an IPX Router; 15.6 Mounting a Remote NetWare Volume; 15.7 Exploring Some of the Other IPX Tools; 15.8 Printing to a NetWare Print Queue; 15.9 NetWare Server Emulation; Chapter 16: Managing Taylor UUCP; 16.1 UUCP Transfers and Remote Execution; 16.2 UUCP Configuration Files; 16.3 Controlling Access to UUCP Features; 16.4 Setting Up Your System for Dialing In; 16.5 UUCP Low-Level Protocols; 16.6 Troubleshooting; 16.7 Log Files and Debugging; Chapter 17: Electronic Mail; 17.1 What Is a Mail Message?; 17.2 How Is Mail Delivered?; 17.3 Email Addresses; 17.4 How Does Mail Routing Work?; 17.5 Configuring elm; Chapter 18: Sendmail; 18.1 Introduction to sendmail; 18.2 Installing sendmail; 18.3 Overview of Configuration Files; 18.4 The sendmail.cf and sendmail.mc Files; 18.5 Generating the sendmail.cf File; 18.6 Interpreting and Writing Rewrite Rules; 18.7 Configuring sendmail Options; 18.8 Some Useful sendmail Configurations; 18.9 Testing Your Configuration; 18.10 Running sendmail; 18.11 Tips and Tricks; Chapter 19: Getting Exim Up and Running; 19.1 Running Exim; 19.2 If Your Mail Doesn't Get Through; 19.3 Compiling Exim; 19.4 Mail Delivery Modes; 19.5 Miscellaneous config Options; 19.6 Message Routing and Delivery; 19.7 Protecting Against Mail Spam; 19.8 UUCP Setup; Chapter 20: Netnews; 20.1 Usenet History; 20.2 What Is Usenet, Anyway?; 20.3 How Does Usenet Handle News?; Chapter 21: C News; 21.1 Delivering News; 21.2 Installation; 21.3 The sys File; 21.4 The active File; 21.5 Article Batching; 21.6 Expiring News; 21.7 Miscellaneous Files; 21.8 Control Messages; 21.9 C News in an NFS Environment; 21.10 Maintenance Tools and Tasks; Chapter 22: NNTP and the nntpd Daemon; 22.1 The NNTP Protocol; 22.2 Installing the NNTP Server; 22.3 Restricting NNTP Access; 22.4 NNTP Authorization; 22.5 nntpd Interaction with C News; Chapter 23: Internet News; 23.1 Some INN Internals; 23.2 Newsreaders and INN; 23.3 Installing INN; 23.4 Configuring INN: the Basic Setup; 23.5 INN Configuration Files; 23.6 Running INN; 23.7 Managing INN: The ctlinnd Command; Chapter 24: Newsreader Configuration; 24.1 tin Configuration; 24.2 trn Configuration; 24.3 nn Configuration; Example Network: The Virtual Brewery; Connecting the Virtual Subsidiary Network; Useful Cable Configurations; A PLIP Parallel Cable; A Serial NULL Modem Cable; Linux Network Administrator's Guide, Second Edition Copyright Information; 0. Preamble; 1. Applicability and Definitions; 2. Verbatim Copying; 3. Copying in Quantity; 4. Modifications; 5. Combining Documents; 6. Collections of Documents; 7. Aggregation with Independent Works; 8. Translation; 9. Termination; 10. Future Revisions of this License; SAGE: The System Administrators Guild; Colophon;
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