Virtualization can save you time, money, and effort, but you’ll need to find the right tool for the task.

Better knowledge of the Linux hotplug system opens the door to to innovation and automation. We’ll show you a custom backup solution for laptop computers.

Hotplugging is invisible and automatic – if you want it to be. But a close look at the Linux hotplug system reveals interesting opportunities for customization.

Debian hotplug is designed for little more than loading drivers and configuring devices. The collection of scripts discussed in this article helps Linux to respond when a network cable is plugged in or when a cellphone is in the vicinity. Read on for more on how to define custom hotplug events.

Spammers charge real money for their dubious services, and hundreds of advertisers are willing to pay. We’ll show you some innovative techniques for controlling and containing spam, including strategies for slowing down spam bots, keeping spammers from getting your address, and separating spam from legitimate email.

If you think your systems are too obscure for an attacker to worry about, think again. Today’s intruders are happy for any victim.

Commercial surveillance systems are expensive and typically involve maintenance agreements. I thought there must be a low-budget alternative.

A genuine multitasking system like Linux runs many processes concurrently. Programs must compete for data access. Assigning locks to files ensures exclusive access and prevents the possibility of data.