本书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**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。
本书包含下列专题: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**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

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 rsynctar Archives
Saving Files on Optical Media
Backing Up and Archiving to Tape with Amanda
Backing Up MySQL Data
Appendix. bash Script Samples
Index