Linux系统管理

Preface

1. Requirements for a Linux System Administrator

About This Book

How Can We Help？

Where Do You Start？

Do You Need a Book？

Who Needs You？

What System Managers Should Know About Linux

What's Next

2. Setting Up a Linux Multifunction Server

Server Requirements

Installing Debian

Logging in Remotely

Configuring the Network

Changing the Default Debian Packages

Setting Up Quotas

Providing Domain Name Services

Adding a Relational Database： MySQL

Configuring Mail Securely with Postfix， POP3， and IMAP

Putting Apache to Work

Adding FTP Services with ProFTPD

Summarizing Your Web Statistics with Webalizer

Synchronizing the System Clock

Installing Perl Modules Needed by SpamAssassin

What's Next

3. The Domain NameSystem

DNS Basics

Getting into the BIND

Setting Up a DNS Server

Configuring an Authoritative DNS Server

Editing the Configuration Files

BIND Tools

Troubleshooting BIND

What's Next

4. An Initial Internet-Ready Environment

Installing ISPConfig

Setting Up a Server and Users with ISPConfig

Safeguarding a Linux Web Server

What's Next

5. Mail

Key Mail Service Terms

Postfix， Sendmail， and Other MTAs

The Postfix SMTP Mail Server on Debian

Adding Authentication and Encryption

Configuring POP3 and IMAP Mail Delivery Agents

Email Client Configuration

What's Next

6. Administering Apache

Static and Dynamic Files

A Simple LAMP Setup

Installation

Apache Configuration Files

Logfiles

SSL/TLS Encryption

suEXEC Support

Benchmarking

Installing and Administering Drupal

Troubleshooting

Further Reading

7. Load-Balanced Clusters

Load Balancing and High， Availability

Scaling Without LB and HA

Further Reading

8. Local Network Services

Distributed Filesystems

Introduction to Samba

Configuring the Network

DHCP

Gateway Services

Print Services

User Management

9. Virtualization in the Modern Enterprise

Why Virtualization Is Popular

High-Performance Computing

Installing Xen on Fedora 5

Installing VMware

Virtualization： A Passing Fad？

10. Scripting

bash Beginnings

Useful Elements for bash Scripts

Scripting Language Shootout

Further Reading

11. Backing Up Data

Backing Up User Data to a Server with rsync

tar Archives

Saving Files on Optical Media

Backing Up and Archiving to Tape with Amanda

Backing Up MySQL Data

Appendix. bash Script Samples

Index

《LINUX系统管理（影印版）》为管理各种类型的系统和服务器提出建议，这些建议甚至会让经验丰富的系统管理员也迫不急待地想要学习，也会让那些使用Linux的老手感到他们遇到了新的挑战。这本书总结了各种步骤，让您可以根据这些步骤，胜任无论是搭建独立的家庭办公室或者小型办公室（SOHO）网络、网站服务器和局域网服务器，还是构建负载均衡的服务器集群和基于虚拟技术的服务器整合等一系列的工作。同时您还可以从书中学到与这些任务相关的各种工具。

对于Unix资深用户、微软认证系统工程师（MCSE）和大型机（mainframe） 管理员来说，《Linux系统管理》是一本绝好的Linux入门指导书。对于正在从事Linux系统管理的人而言，这本书可以作为进阶指导，让您提高已有的技能，学习新知识。

《LINUX系统管理（影印版）》包含下列专题：安装、配置、维护基于BIND的DNS服务器并为其排查错误；为中小型企业办公室搭建具有完全安全认证功能的电子邮件服务；为网站服务器从零开始安装Apache、PHP和IMySQL并进行配置；基于免费 Linux虚拟机搭建具有负载均衡功能的Apache网站服务器集群；使用Xen或者VMWare的liunx虚拟化技术在一台服务器上运行多个Linux内核，并且管理每个内核在运行时的处理器占用时间、设备使用和内存分配；创建和改写Shell脚本以便完成您的工作；使用rsync、tar、cdrecord、Amanda和 IMySQL工具进行数据备份和恢复。

《LINUX系统管理（影印版）》为系统管理这一传统领域提供了宝贵丰富的知识和经验。在本书作者的研究过程中，他们解决了许多以前完全没有文档记录的问题。通过本书，作者将把他们的收获传授给您。