Charly's Column The Sysadmin’s Daily Grind: FuzzyOCR

Jul 11, 2008

The latest trend is to hide spam in images. The admin’s response: an OCR tool that extracts the texts and feeds them to the spam filter.

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Tarpits Using tarpits to trap spammers

Jul 11, 2008

A tarpit slows down spam by reducing the effectiveness of the spammer’s weapons.

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Spam Test Comparing antispam appliances and services

Jul 11, 2008

Spam filters can help smooth the waves in your inbox, as long as they are reliable and don’t have too many side effects. We’ll show you what we found when we tested five antispam appliances and two service providers.

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Apache Suexec Secure scripts with Apache Suexec

Jun 20, 2008

For many admins, the security of a web application is more important than its performance. If you have a web server with multiple users, the Suexec module can help you avoid problems associated with globally writable directories.

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FoxFilter and Public Fox Firefox content filters

Feb 25, 2008

Firefox has a reputation of being the most innovative Web browser. We show you how to apply Firefox’s distribution-specific tools to make browsing the web safer for your children.

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HTML Purifier 3.0: For PHP5 Only, More CSS

Jan 15, 2008

Version 3.0.0 of HTML Purifier, a PHP library for purifying HTML has just been released with numerous new features.

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Firefox 2.0.0.8 Removes Vulnerabilities

Oct 22, 2007

Several vulnerabilities in Firefox allow remote attacks on 2.x versions: updating to 2.0.0.8 closes the gaps.

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Web Wizardry Intro Techniques for more powerful websites

Sep 26, 2007

New tools for the web appear every day. In this issue, we round up some promising technologies, including Apache's Suexec module, the new WS-Addressing standard, the Helma application server, the Perlbal web server, and microformats.

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