Linux has proved to be much more resistant to malware than Windows, especially when it comes to viral infections, but any remote exploit makes it just as susceptible to worms, trojans, and rootkits as any other platform. Given all the fuss in the news recently about compromised Linux/Apache servers being responsible for infecting Windows users with malware when they visit those compromised sites, we thought it would be a good time to take a look at three of the best rootkit/malware detection tools available for Linux desktop and SOHO users. Here's a brief comparison of three popular choices: Chkrootkit, Rootkit Hunter, and Ossec.

Gnuplot can generate sophisticated graphs and output them in vector or bitmap image formats. It can produce many graph types, and you can customize the way the output will look to a great extent. But the customizability of gnuplot can work against it when all you want a simple line graph comparing two series of data points. In those cases, gplot lets you use gnuplot to create simple graphs using more semantic options to customize the appearance of common graph objects.