[2003-05-23] Working with Permissions in PHP, Part 2
In my last column, we took a step away from PHP to discuss the Unix permissions system. In today's column we return to PHP to show you how to apply what you learned last time; again, this column applies only to those who work with PHP in an environment that supports Unix-like permission.
[2003-05-22] Linux File Permission Confusion
File permissions, the most basic form of security control that exists on Unix-like systems, is still misunderstood by many.
[2003-05-19] Working with Permissions in PHP, Part 1
In the past few columns, I have been discussing using PHP's file I/O capabilities for manipulating both files and directories. This week, we'll take a slight detour from a strictly PHP-related subject and discuss file permissions in Unix systems. If you are using PHP in a Windows environment (or other environment without a permission system), this column may not apply to you.
[2003-05-09] Improve Linux performance
Performance breakthroughs seem to come in two varieties: easy and hard. That's no platitude; the boundary between the two is surprisingly clear.
When you hear about some -- the easy ones -- you clap your hands and say, "wow" or "of course" or "slick." Although in some cases it has taken considerable genius to realize their first application, they're easy to understand.
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