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Why this book was written?, has a simple and straight answer: There was a dire need for it. People, which includes professional system administrators and professional Linux trainers, had certainly spend some tough time while recalling those commands and procedures which just sometimes go away from the mind. Similarly, in case of a network trouble shoot or a problem hunt, there lacked a proper sequence to follow, which could identify the problems.

This book is NOT a detailed theory based encyclopedia. For that kind of explanation, please refer to Linux Documentation Project or the books from O’Reilly, IDG, Sybex, etc. So in short you should not expect explanation of things in this text. This book is “NOT” for newbies. This is a reference book and should be treated as reference only. There might be things which might not work because of your machine or your particular Linux distribution or my incorrect explanation. As far as this book is concerned, all material is related to RedHat distribution.

This book was initially written using OpenOffice.org office suite running on a RedHat Linux 8 powered computer. Fifth edition coming out from a Fedora Core 4 powered computer.

Contents
About Emerging Technologies
About the Author
Dedication
Acknowledgments
Translations(and translators)
Revision history
Preface
Terms and conditions
Disclaimer
Chapter 1: Basics

Directory and disk usage related commands:
Mounting / un-mounting floppies /cd-rom/ directories:
File copying / moving / renaming / deletion / compression and decompression:
Process management:
System services configuration / device configuration:
User Management and file permissions / ownerships:
Modules management:
Routing table and naming:
Miscellaneous:
Important Vi editor commands:

Chapter 2: Using fdisk

Scenario:
Configuration / procedure:
Partition size calculation:

Chapter 3: Basic Network trouble-shooting

Example network:
Basic network configuration and troubleshooting
Further checking during network trouble shooting:

Chapter 4: DNS

Packages:
Scenario:
Configuration:
Log Files:
Documentation and Help:
Testing:
Ping Testing:
Terminology / abbreviations used in named zone configuration files:

Chapter 5: NFS

Packages:
Scenario:
Server side configuration:
Client side configuration:
Log files:
Documentation and help:
Testing:
Testing from server:

Chapter 6: NIS

Packages:
Scenario
Server side configuration:
Client side configuration:
Documentation:
Log files:

Chapter 7: SAMBA

Packages:
Scenario1 (workgroup model, shares on windows machine):
Scenario2 (workgroup model, shares on linux machine):
Scenario 3 (SMB server as domain controller):
Notes:
Common problems while joining a Linux SAMBA domain from win2k client:
Now something about plain text passwords:
Log Files:
Documentation and Help:
Testing:

Chapter 8: SQUID

Packages:
Scenario:
Configuration:
SQUID on gateway machine:
SQUID on one leg, another Linux mahcine as gateway:
SQUID on one leg, Cisco router as gateway:
Stop porn for God's sake:
Socks, did I forget to wear them?
Common problems:
Log files:
Documentation and Help:
Testing:

Chapter 9: APACHE

Packages :
Scenario:
Configuration
Directory aliases
ScriptAliases
UserDirectories
Virtual Host:
Providing support of privileged access to some web site, based on user name and password
Log Files
Documentation and Help:

Chapter 10: SENDMAIL

Packages
Scenario
Configuraiton
Configuration of IMAP and POP3 services:
Client side configuration:
Log files:
Documentation and help
Testing:
Relaying denied error
www.geocities.com/mk_azeem

Chapter 11: DHCP

Packages
Scenario
Server side configuration:
Client side configuration:
Log files

Chapter 12: FTP

Packages:
Something about FTP ports, Active mode and Passive mode FTP:
Scenario:
Server side configuration:
Client side configuration:
Log files:

Chapter 13: FIREWAL

Configuration For kernel 2.2:
Configuration For kernel 2.4:
Transparent proxy:
MASQUERADE:
SNAT:
DNAT:
Sample firewall configuration / script:
Log files:
Documentation and Help:
Testing

Chapter 14: KERNEL MODIFICATION AND COMPILATION

Packages:
Scenario:
Procedure:
Notes:

Chapter 15: Single user and Rescue mode

Rescue mode:
Method1: Installing GRUB using floppy:
Method2: Using grub-install to install GRUB:
Single-User mode:
FSCK:
Second Hard drive attached , abnormal boot up:
Installing another version of linux on another partition and boot problems related to that:
Alternative method:

Chapter 16: Advance permissions

Setuid, setgid and sticky bit:.
Now first sticky bit:
Now setuid and setgid:
Umask:
Sudo:

Appendix A (Wiring / cabling)

Wiring schemes / cable connector schemes
1)Straight through cable
2)Cross over cable
3)Roll over cable
4)PC serial console cable

Appendix B (Network Addresses / Classes)
Index

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