Linux

IBM e-business architect Chris Walden is your guide through a nine-part developerWorks series on moving your operational skills from a Windows to a Linux environment. In this part, we explore Linux's hierarchical directory structure, and investigate mounting and devices.
Working with files and storage devices in Linux is different from Windows. There are files and a hierarchical directory structure, but beyond that you will need to develop a different way of thinking.

A handful of recent online attacks on free and open-source software servers has open-source developers looking over their shoulders.
During the last four months, unknown intruders have breached the security around servers hosting programs and code published by the Linux kernel development team, the Debian Project, the Gentoo Linux Project and the GNU Project, which manages the development of many important programs used by Linux and other Unix-like systems. The attacks have convinced open-source project leaders to take another look at their security.

IBM e-business architect Chris Walden is your guide through a nine-part developerWorks series on moving your operational skills from a Windows to a Linux environment. In this part, we track, manipulate, and rotate logs for security and informational purposes.
One of the keys to success in managing any system is to know what is happening on the system. Linux offers exceptional logging, and the detail in the logs is configurable.

IBM e-business architect Chris Walden is your guide through a nine-part developerWorks series on moving your operational skills from a Windows to a Linux environment. In this part, we add and delete users and groups, both via the Webmin interface and at the command line. Shadow password and group files are also covered.

IBM e-business architect Chris Walden is your guide through a nine-part developerWorks series on moving your operational skills from a Windows to a Linux environment. In this part, we install and take a tour of Webmin, a browser-based administration tool for Linux and other platforms that provides a graphical interface to many administrative and operational tasks.

Linux users have been advised to upgrade to the latest stable kernel, after the discovery of a critical vulnerability in the core code.
System administrators will have to oversee kernel upgrades to remove the flaw, provisionally called CAN-2003-0961, which enables attackers to gain root access to vulnerable machines, yielding complete control, according to security analysts.

But worm attacks are unlikely, as the exploit requires a local user account.

Boxall's CC, the South African distributor of Norway's Norman data security products, says Norman Virus Control (NVC) is the only locally supported anti-virus solution specifically for Linux.

The company has just launched a strong marketing drive to target the local market.

Consultant Peter Boxall says Norman has developed a new command-line scanner for Linux that is compatible with all major distributions. “NVC for Linux is a powerful tool for a Linux administrator, enabling full control deployment of scans within the native Linux management”.

IBM e-business architect Chris Walden is your guide through a nine-part developerWorks series on moving your operational skills from a Windows to a Linux environment. In this part, we cover the different shells, as well as some of the most essential Linux commands.

IBM e-business architect Chris Walden is your guide through a nine-part developerWorks series on moving your operational skills from a Windows to a Linux environment. We begin our transition by examining some of the differences and similarities between Linux and Windows, and learn to stop rebooting all the time.

2.4 stable kernel maintainer Marcelo Tosatti recently announced his future plans for the stable 2.4 kernel. Acknowledging the pending release of the new stable 2.6 kernel, Marcelo explains that we will see only one final round of major fixes in 2.4, after which this kernel will go into maintenance mode. Following the future release of the 2.4.24 kernel, only critical patches and security fixes will be merged.