ESR: "These are people (mainly adolescent males) who get a kick out of breaking into computers and phreaking the phone system. Real hackers call these people ‘crackers’ and want nothing to do with them.

Securing your Linux server is important to protect your data, intellectual property, and time, from the hands of crackers and hackers. The system administrator is responsible for security Linux box. In this first part of a Linux server security series, I will provide 20 hardening tips for default installation of Linux system.

CentOS 5.3 now comes with disk encryption. When you install the operating system you have the option to encrypt block devices, partitions that you create. Block device encryption requires a passphrase or key as authentication in order to access the data on that partition.

"As I explained in my previous Emacs tutorial on killing a block of text, it is sometimes hard to find easy to understand documentation on how to use emacs. One of the first things I wanted to learn how to do in Emacs was block editing..."

Many organizations face a productivity problem with employees who abuse chat programs like MSN Messenger. Some IT departments are instructed to block this kind of traffic for users who either abuse or simply don't require the software.

Hospitals in the UK get shut down for choosing Windows and ceding control to crackers.

Any political discussion can turn dangerous in a heartbeat, and they usually do, with foaming and fireworks more usual than relaxed give-and-take.

Setting up a mlaware blacklist in Postix MTA is quite easy. The Malware Block List is a free, automated and user contributed system for checking URLs for the presence of Viruses, Trojans, Worms, or any other software considered Malware. The list is available in 25 formats.

Sony are removing the "Install Other OS" option from all PS3s citing "security concerns" for the change which will block Linux from running on the console