Features

• Focus: System Administration  by Don Marti
  
• Port Scans and Ping Sweeps Explained  by Lawrence Teo
  Lawrence Teo explains two common network probes and what can be done to detect them.
  
• High Availability Cluster Checklist  by Tim Burke
  With a variety of clustering services on the market, the ability to determine how well options meet your specific business needs is necessary.
  
• Monitoring Your UPS with apcupsd  by Riccardo Facchetti
  We delve into the details of apcupsd, a program for monitoring and controlling APC UPSes.
  
• PVFS: A Parallel Virtual File System for Linux Clusters  by Ibrahim F. Haddad
  An introduction to the Parallel Virtual File System and a look at how one company installed and tested it.
  
• A Linux-Based Automatic Backup System  by Michael O'Brien
  A step-by-step procedure for establishing a backup system that will save time and money.
  
• Linux System Administration   A User's Guide  by Marcel Gagné
  An excerpt from our French chef's upcoming book.
  

Indepth

• Jigsaw: A Revolutionary Web Server for Linux  by Ibrahim F. Haddad
  The design philosophy and essential features of the Jigsaw Web Server exposed.
  
• Elegance of Java and the Efficiency of C++--It's Ada  by Frode Tennebø
  Tennebø recommends taking a look at Ada.
  
• PHP4 and PostgreSQL: Building Serious Web Applications with Open-Source Software  by Tim Perdue
  A walk-through of a simple web application to demonstrate the features of PHP and Postgres.
  
• About the Mod: Part 1  by Dave Phillips
  An expansion and revision of material found in Linux Music & Sound
  
• Debian Package Management, Part 1: A User's Guide  by David Blackman
  A how-to for Debian package management.
  
• Typesetting with groff Macros  by Wayne Marshall
  Reports of troff's death are greatly exaggerated.
  
• SISAL: A Safe and Efficient Language for Numerical Calculations  by D. J. Raymond
  The benefits of SISAL and a call for action.
  

Toolbox

• At the Forge   ATF Jubilee Edition  by Reuven M. Lerner
  
• Cooking with Linux   Saucy Administration Tools  by Marcel Gagné
  

Columns

• Linux for Suits   The End of the Tube  by Doc Searls
  
• Linley on Linux One World, One Processor?  by Linley Gwennap
  
• Focus on Software  by David A. Bandel
  
• Focus on Embedded Systems  by Rick Lehrbaum
  
• The Last Word  by Stan Kelly-Bootle
  

Reviews

• PowerPlant  by Jim Gilbert
  
• Debian 2.2 Potato: Memorial to a Hacker  by Stephanie Black
  
• Linux in a Box for Dummies  by Ralph Krause
  
• Two Books on PHP  by Phil Hughes
  
• Programming Perl 3rd Edition  by Paul Barry
  
• Linux Music & Sound  by Deric Mendes
  
• Building Linux Clusters  by Glen Otero
  

Departments

• Letters  
  
• upFRONT  
  
• From the Editor   The Trouble with the Bastard Operator from Hell  by Don Marti
  
• Best of Technical Support  
  
• New Products