In this article, learn how to apply the open source tools cnee and Perl in mouse-click dynamics to measure the more subtle characteristics of human-computer interaction. Also, learn how to use the number and hold time of mouse-click events to help authenticate users.

Recent pushes for "green" technology focus mostly on talk, with little action for the typical home- or small-office environment. Many users leave their systems online continuously, resulting in a significant source of power consumption. Learn how to use Argus and client/server Perl code to monitor your network connections and shut down machines no longer in use.

Measure the total time of entry and verify the time between keystrokes to help authenticate a user regardless of the data being entered. Learn how to apply the open source tools xev and Perl in keystroke dynamics to measure the more-subtle characteristics of human-computer interaction. This article uses example code to demonstrate keystroke dynamics for enhancing the security of your applications in authentication and continuous data entry contexts.

The code as presented in the article will enable you to efficiently query structured LDAP data quickly by using Perl and a vector-space search engine to search and display records from your Lightweight Directory Access Protocol (LDAP) database, while compensating for typographical and spelling errors automatically.

This tutorial shows how to install and use SpeedyCGI (also known as PersistentPerl) on a Debian Etch system. SpeedyCGI is a way to run Perl scripts persistently, which can make them run much more quickly. It keeps the Perl interpreter running, and during subsequent runs, this interpreter is used to handle new executions instead of starting a new Perl interpreter each time.

http://www.howtoforge.com/speedycgi_debian_etch