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