Linux network administrator's guide / Olaf Kirch & Terry Dawson.

Format:

Book

Author/Creator:

Kirch, Olaf.

Contributor:

Dawson, Terry.

Language:

English

Subjects (All):

Linux.

Operating systems (Computers).

Physical Description:

1 online resource (xxix, 474 p. ) ill. ;

Edition:

2nd ed.

Place of Publication:

Cambridge, Mass. : O'Reilly, 2000.

Language Note:

English

System Details:

text file

Summary:

"The Linux Network Administrator's Guide gives you all the information you need to join a network, whether you want a simple UUCP connection or a full LAN, with your Linux system serving as a firewall, an NFS or NIS file server, and a mail and news hub." "This book 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). The 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."

"Topics include: introduction to TCP/IP; configuring network and serial hardware; Domain Name Service; serial line communications using SLIP and PPP; NIS and NFS; taylor UUCP; administering electronic mail, including sendmail and exim; Administering Netnews, including INN and several newsreaders; firewalling using ipfwadm, ipchains, and netfilter; masquerading and accounting; and IPX configuration for a Novell Netware network."--Jacket.

Contents:

History 1

TCP/IP Networks 2

UUCP Networks 13

Linux Networking 14

Maintaining Your System 16

Chapter 2 Issues of TCP/IP Networking 19

Networking Interfaces 19

IP Addresses 20

Address Resolution 22

IP Routing 23

Internet Control Message Protocol 29

Resolving Host Names 30

Chapter 3 Configuring the Networking Hardware 32

Kernel Configuration 35

A Tour of Linux Network Devices 41

Ethernet Installation 42

PLIP Driver 45

PPP and SLIP Drivers 48

Other Network Types 48

Chapter 4 Configuring the Serial Hardware 49

Communications Software for Modem Links 49

Introduction to Serial Devices 50

Accessing Serial Devices 51

Serial Hardware 54

Using the Configuration Utilities 55

Serial Devices and the login: Prompt 59

Chapter 5 Configuring TCP/IP Networking 63

Mounting the /proc Filesystem 64

Installing the Binaries 64

Setting the Hostname 65

Assigning IP Addresses 65

Creating Subnets 67

Writing hosts and networks Files 67

Interface Configuration for IP 69

All About ifconfig 77

Netstat Command 80

Checking the ARP Tables 83

Chapter 6 Name Service and Resolver Configuration 85

Resolver Library 86

How DNS Works 93

Running named 100

Chapter 7 Serial Line IP 116

General Requirements 116

SLIP Operation 117

Dealing with Private IP Networks 119

Using dip 120

Running in Server Mode 126

Chapter 8 Point-to-Point Protocol 129

PPP on Linux 130

Running pppd 131

Using Options Files 132

Using chat to Automate Dialing 133

IP Configuration Options 136

Link Control Options 139

General Security Considerations 141

Authentication with PPP 142

Debugging Your PPP Setup 145

More Advanced PPP Configurations 146

Chapter 9 TCP/IP Firewall 151

Methods of Attack 152

What Is a Firewall? 153

What Is IP Filtering? 155

Setting Up Linux for Firewalling 156

Three Ways We Can Do Filtering 158

Original IP Firewall (2.0 Kernels) 159

IP Firewall Chains (2.2 Kernels) 168

Netfilter and IP Tables (2.4 Kernels) 179

TOS Bit Manipulation 188

Testing a Firewall Configuration 190

A Sample Firewall Configuration 192

Chapter 10 IP Accounting 200

Configuring the Kernel for IP Accounting 200

Configuring IP Accounting 201

Using IP Accounting Results 207

Resetting the Counters 209

Flushing the Ruleset 210

Passive Collection of Accounting Data 210

Chapter 11 IP Masquerade and Network Address Translation 211

Side Effects and Fringe Benefits 213

Configuring the Kernel for IP Masquerade 214

Configuring IP Masquerade

215

Handling Name Server Lookups 218

More About Network Address Translation 218

Chapter 12 Important Network Features 219

Inetd Super Server 219

Tcpd Access Control Facility 222

Services and Protocols Files 224

Remote Procedure Call 225

Configuring Remote Login and Execution 227

Chapter 13 Network Information System 235

Getting Acquainted with NIS 236

NIS Versus NIS+ 239

Client Side of NIS 239

Running an NIS Server 240

NIS Server Security 241

Setting Up an NIS Client with GNU libc 242

Choosing the Right Maps 244

Using the passwd and group Maps 246

Using NIS with Shadow Support 249

Chapter 14 Network File System 250

Preparing NFS 251

Mounting an NFS Volume 252

NFS Daemons 254

Exports File 255

Kernel-Based NFSv2 Server Support 257

Kernel-Based NFSv3 Server Support 258

Chapter 15

IPX and the NCP Filesystem 259

Xerox, Novell, and History 259

IPX and Linux 260

Configuring the Kernel for IPX and NCPFS 262

Configuring IPX Interfaces 262

Configuring an IPX Router 265

Mounting a Remote NetWare Volume 269

Exploring Some of the Other IPX Tools 273

Printing to a NetWare Print Queue 274

NetWare Server Emulation 278

Chapter 16 Managing Taylor UUCP 279

UUCP Transfers and Remote Execution 281

UUCP Configuration Files 283

Controlling Access to UUCP Features 298

Setting Up Your System for Dialing In 300

UUCP Low-Level Protocols 304

Troubleshooting 306

Log Files and Debugging 308

Chapter 17 Electronic Mail 310

What Is a Mail Message? 311

How Is Mail Delivered? 314

Email Addresses 315

How Does Mail Routing Work? 317

Configuring elm 323

Chapter 18 Sendmail 326

Introduction to sendmail 326

Installing sendmail 327

Overview of Configuration Files 327

Sendmail.cf and sendmail.mc Files 328

Generating the sendmail.cf File 334

Interpreting and Writing Rewrite Rules 334

Configuring sendmail Options 339

Some Useful sendmail Configurations 341

Testing Your Configuration 349

Running sendmail 353

Chapter 19 Getting Exim Up and Running 358

Running Exim 359

If Your Mail Doesn't Get Through 361

Compiling Exim 362

Mail Delivery Modes 362

Miscellaneous config Options 364

Message Routing and Delivery 364

Protecting Against Mail Spam 369

UUCP Setup 370

Chapter 20 Netnews 372

Usenet History 372

What Is Usenet, Anyway? 373

How Does Usenet Handle News? 374

Chapter 21 C News 378

Delivering News 378

Installation 380

Sys File 382

Active File 385

Article Batching 387

Expiring News 389

Miscellaneous Files 392

Control Messages 393

C News in an NFS Environment 396

Maintenance Tools and Tasks 396

Chapter 22 NNTP and the NNTPD Daemon 398

NNTP Protocol 400

Installing the NNTP Server 406

Restricting NNTP Access 407

NNTP Authorization 408

nntpd Interaction with C News 409

Chapter 23 Internet News 410

Some INN Internals 410

Newsreaders and INN 413

Installing INN 413

Configuring INN: the Basic Setup 414

INN Configuration Files 414

Running INN 430

Managing INN: The ctlinnd Command 430

Chapter 24 Newsreader Configuration 436

tin Configuration 437

trn Configuration 437

nn Configuration 438

Appendix A Example Network: The Virtual Brewery 441

Appendix B Useful Cable Configurations 443

Appendix C Linux Network Administrator's Guide, Second Edition Copyright Information 445

Appendix D

Sage: The System Administrators Guild 453.

Notes:

Rev. ed. of: Linux system administration, 1999.

Includes bibliographical references and index.

Contains:

Kirch, Olaf. Linux system administration.

ISBN:

9780596152604

0596152604