Linux Gazette

Mailbag

LG Staff — Thu, 01 May 2008 22:06:11 -0500

By LG Staff

Our Mailbag
Delete the contents
Scalable TCP Tuning
Sendmail and capacity
Netcape to OpenLDAP Migration
WEP: a 1-minute wonder
how to create hard link
NT description
Shell scripting Help
sunversion on linux

Talkback

LG Staff — Thu, 01 May 2008 22:06:11 -0500

By LG Staff

Talkback:108/okopnik.html
Talkback:135/pfeiffer.html
Talkback:136/pfeiffer.html
Talkback:149/lg_tips.html
Talkback:149/melinte.html
Talkback:133/luana.html
Talkback:124/pfeiffer.html
Talkback:116/herrmann.html

2-Cent Tips

LG Staff — Thu, 01 May 2008 22:06:11 -0500

By LG Staff

2-cent tip: Convert a bunch of Images from one format to another
2-cent tip: Linux Magic System Request Keys
2-cent tips: KeyTouch, .sig generators, Corrupted ISOs, etc.
2-cent tip: Snapedit
2-cent tips: Using git

NewsBytes

Kat Tanaka Okopnik, Howard Dyckoff, and Deividson Luiz Okopnik — Thu, 01 May 2008 22:06:11 -0500

By Kat Tanaka Okopnik, Howard Dyckoff, and Deividson Luiz Okopnik

News in General
MySQL announces 5.1 GA, future 6.0 dual version
Events
Distro News
openSUSE 11.0 Beta 1 Announced
Ubuntu 8.04 (Hardy Heron) LTS Desktop and Server Editions Released
Products
Open Office 2.4 released, 3.0 on the way
Kickfire Appliance Accelerates MySQL
Defensics Test Platform Fuzzes Network Equipment
InnoDB Plugin 1.0 for MySQL 5.1 Announced
Avnet announces launch of Complete MicroBlaze Processor Linux DesignSolution
Macraigor Systems, Eclipse Foundation Member, Provides Eclipse Integrationfor GNU Embedded Development and Debugging Toolset on Linux Hosts
Truviso Contributes PostgreSQL Enhancements to Open Source Community
Vyatta Community Edition 4 Scales from Branch Office to Data Center
VIA Announces Strategic Open Source Driver Development Initiative

Deividson on Databases: Stored Procedures

Deividson Luiz Okopnik — Thu, 01 May 2008 22:06:11 -0500

By Deividson Luiz Okopnik

Stored Procedures are pre-compiled subroutines that are stored inside the database. They allow you to select and manipulate data, and, with the use of control structures and loops, perform complex computations and return the calculated result to the client. This saves considerable amounts of client/server communication.

Knoppix 5.3.1

Edgar Howell — Thu, 01 May 2008 22:06:11 -0500

By Edgar Howell

At the recent CeBIT computer fair, Klaus Knopper finally released a new version of his popular Knoppix live-CD/DVD variety of GNU/Linux. The initial version was fine for the CeBIT crowd but had some problems, the most obvious of which was a mixture of languages in menus if you booted with the parameter "lang=" (by the way, it is now "lang=us" rather than "lang=en"; this will take getting used to after many years of using "lang=en".)

Virtualizing without Virtualizing

Kapil Hari Paranjape — Thu, 01 May 2008 22:06:11 -0500

By Kapil Hari Paranjape

Nowadays one reads a lot about virtualization. The Gazette even ran an article on it. Most of these reports talk about Xen, Vserver, OpenVZ, Qemu, User Mode Linux or co-Linux. Each of those modern technologies has its place no doubt, but this article will concentrate on the humble chroot way of running programs in a virtual environment.

Lockpicking

Aurelian Melinte — Thu, 01 May 2008 22:06:11 -0500

By Aurelian Melinte

The dynamic linker allows us to override functions exported by the shared objects that are used by programs. In this article, we will use this interposition functionality and build a library that wraps around the 'pthreads' library to diagnose mutex-related problems, including the well-known deadlock.

Searching for Text (Part II)

René Pfeiffer — Thu, 01 May 2008 22:06:11 -0500

By René Pfeiffer

In the first part of this series, we took a look at various methods that help us to index text and to facilitate text searches. The approaches were focused on SQL databases. Provided you don't get nervous about abandoning SQL queries, I can show you another way to build an index and to query it for your favourite phrase. Prepare to meet Lucene!

Joey's Notes: Guide to adding a new partition or drive to an existing system

Joey Prestia — Thu, 01 May 2008 22:06:11 -0500

By Joey Prestia

The basic steps involved in this process are:

Hands-on Linux Software RAID

Amit Kumar Saha — Thu, 01 May 2008 22:06:11 -0500

By Amit Kumar Saha

Software RAID is RAID implemented with software - no additional hardware such as a RAID controller is needed. Thus, software RAID is a good starting point to start getting some hands-on RAID experience. Also, software RAID is independent of proprietary management software - maintaining a software RAID works the same way on all machines that run Linux. However, there is something to think about too: when considering software RAID, think about performance. All RAID algorithms are done by the system CPU and every block has to be copied over the system's data bus (i.e. sda1 <-> IO controller <-> RAM, possibly CPU <-> IO controller <-> sdb1). (Thanks to René Pfeiffer of the Answer Gang for pointing that out.)

XKCD

Randall Munroe — Thu, 01 May 2008 22:06:11 -0500

By Randall Munroe

Click here to see the full-sized image

More XKCD cartoons can be found here.

HelpDex

Shane Collinge — Thu, 01 May 2008 22:06:11 -0500

By Shane Collinge

These images are scaled down to minimize horizontal scrolling.