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.
Directory:
> IT > Operating Systems
Date: 2003-05-23
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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.
Directory:
> IT > Operating Systems
Date: 2003-05-19
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SonicWall Firewall Provides Content Filtering for Networks
Recently, I was asked to help a school install Internet access for the classroom Macs. They already had an Ethernet network installed. I recommended DirecTVDSL (formerly Telocity) as the provider and ordered their DSL service. One advantage of their service over some cable and DSL providers is the provision of a fixed IP address. So if the school wanted to host their own website, it would be possible. Service was connected in less than 2 weeks. [Update: In December 2002 DirecTV DSL announced they would cease operations, at this time Bellsouth looks like the preferred replacement vendor].
Directory:
> IT > Operating Systems
Date: 2003-05-19
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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.
Directory:
> IT > Operating Systems
Date: 2003-05-09
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