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Build a Web Spider on Linux
Web spiders are software agents that traverse the Internet gathering, filtering, and potentially aggregating information for a user. This article shows you how to build spiders and scrapers for Linux to crawl a Web site and gather information, stock data, in this case. Using common scripting languages and their collection of Web modules, you can easily develop Web spiders.

( Permalink: Build a Web Spider on Linux      Submitted by Anonymous Tue Dec 5, 2006 )

Greatly Improve Linux LAMP Security
The root of the PHP and Lamp security problem lies in the way most Apache servers are configured. In this article, you will improve the Linux security of a LAMP by using the capabilities of Apache's Proxy's directive mod_proxy module to isolate potential Linux security risks while maintaining the flexibility that tools like PHP provide.

( Permalink: Greatly Improve Linux LAMP Security      Submitted by Anonymous Tue Dec 5, 2006 )

Monitoring a Server with Munin

Munin is a simple to configure tool that make real nice graph about your server status. It can actually deal with almost any aspect of your server (load average, network cards status, CPU usage, memory usage, postfix, exim4, mysql ...) without spending much time in configuring it.

Munin produce MRTG likes graph so you can easily see how your server health is going.

Server health status with munin

( Permalink: Monitoring a Server with Munin      Submitted by chantra Mon Dec 4, 2006 )

How To Compile A Kernel - The SuSE Way
Each distribution has some specific tools to build a custom kernel from the sources. This article is about compiling a kernel on SuSE systems. It describes how to build a custom kernel using the latest unmodified kernel sources from www.kernel.org (vanilla kernel) so that you are independent from the kernels supplied by your distribution. It also shows how to patch the kernel sources if you need features that are not in there.

( Permalink: How To Compile A Kernel - The SuSE Way      Submitted by Falko Timme Mon Dec 4, 2006 )

SCALE 5x - Registration Now Open
SCALE 5X registration is now open! The Expo is now accepting early registrations. A full pass (expo floor and seminars is $60 until January 24, 2007, and $70 thereafter, a student pass is $30 until January 24, 2007, and $35 thereafter, and an expo-floor-only pass is $10. Join us for over 40 seminars and tutorials. Presentations from Chris Dibona, Ted Haeger, Don Marti, and more! Expo floor will include exhibits by Dell, Google, Krugle, Ingres, Trolltech, and others.

( Permalink: SCALE 5x - Registration Now Open      Submitted by Ilan Rabinovitch Mon Dec 4, 2006 )

How to set up an encrypted filesystem on Debian
Reading this guide I was surprised how easy it is to set up an encrypted partition on Debian. Whatever your reason for doing this might be, this guide will walk you through the creation of an encrypted filesystem using LUKS. LUKS is the Linux Unified Key Setup and is a standard format for linux hard disk encryption. Article on Debian Administration

( Permalink: How to set up an encrypted filesystem on Debian      Submitted by Jure Kodzoman Mon Dec 4, 2006 )

UNIX tools for exploring object files
Computers are difficult to program and many tools have been created to assist you in making the task easier. The programs that run on a UNIX system follow a careful design known as the object file format. Learn more about the object file format and the tools that you can use for exploring object files found on your system

( Permalink: UNIX tools for exploring object files      Submitted by BlueVoodoo Mon Dec 4, 2006 )

Recover Data From a dead hard drive using ddrescue
Like dd, dd_rescue does copy data from one file or block device to another.dd_rescue is a tool to help you to save data from crashed partition. It tries to read and if it fails, it will go on with the next sectors where tools like dd will fail. If the copying process is interrupted by the user it is possible to continue at any position later. It can copy backwards. Read Full article here

( Permalink: Recover Data From a dead hard drive using ddrescue      Submitted by david Tue Nov 28, 2006 )

Postfix and Postgrey: A proactive approach to spam

Greylisting is yet another way for preventing your mailbox getting full of spam. A famous spam fighter software is spamassassin which filter emails. Greylisting won't replace such softwares but it will behave as a powerful proactive barrier which will reduce the amount of spam getting through your mail server.

reducing spam with postfix and postgrey

( Permalink: Postfix and Postgrey: A proactive approach to spam      Submitted by chantra Tue Nov 28, 2006 )

Howto Monitor and Restart Webserver or services
When you cannot monitor your server for service availability, it is better to take help of automated monitor and restart utility. Last 4 days I was away from my server as I was enjoying my vacation. During this time due to load my lighttpd webserver died but it was restarted automatically within 2 minutes. I had utility configured for monitoring services on a Linux system called monit. It offers all features you ever needed for system monitoring and perform error recovery for UNIX like system.

( Permalink: Howto Monitor and Restart Webserver or services      Submitted by nixcraft Tue Nov 28, 2006 )

Linux Powers Nokia 770
The Linux-based Nokia 770 Internet tablet is an intriguing gadget for Linux enthusiasts and professional embedded developers. Though it lacks personal information manager (PIM) apps one would expect from a palmtop-sized device, it is instead pitched as an “Internet tablet”, providing applications such as Web browser and an e-mail client.

( Permalink: Linux Powers Nokia 770      Submitted by IdaAshley Tue Nov 28, 2006 )

Command-line calculations using bc

If like me, you do most of your work from the command-line, using vim to edit files, mutt for e-mails, cd/ls/mv/find/etc instead of a file manager, then you may get annoyed by having to fire up a GUI calculator to make (what may sometimes be) a single calculation.

This article shows how to quickly perform standard calculations on the command line including addition, subtraction, multiplication, division, square root, powers, conversion from decimal to hex, decimal to binary, hex to decimal, and binary to decimal. It also briefly introduces using bc in interactive mode and how to write files for use with bc for frequently repeated operations. There is a mention of using Google for performing calulations. It finishes with a little challenge to test the power of your CPU.

( Permalink: Command-line calculations using bc      Submitted by Rob Newcater Mon Nov 27, 2006 )

Set Up Ubuntu-Server 6.10 As A Firewall/Gateway
This tutorial shows how to set up a Ubuntu 6.10 server (Edgy Eft) as a firewall and gateway for small/medium networks. The article covers the installation/configuration of services such as Shorewall, NAT, caching nameserver, DHCP server, VPN server, Webmin, Munin, Apache, Squirrelmail, Postfix, Courier IMAP and POP3, SpamAssassin, ClamAV, and many more.

( Permalink: Set Up Ubuntu-Server 6.10 As A Firewall/Gateway      Submitted by Falko Timme Mon Nov 27, 2006 )

Five things to know when you switch to Linux
If you have just installed GNU/Linux on your computer, and have only ever used Windows before, here are five things you need to know to get going rapidly. The article covers: software installation, using root account and system console, desktop environments, file permissions and a few miscellaneous tips for the newcomers.

( Permalink: Five things to know when you switch to Linux      Submitted by Borys Musielak Mon Nov 27, 2006 )

Cookbook for Apache Geronimo install in minutes
Get a cookbook-style guide for downloading, installing, and configuring Apache Geronimo. Not a chef? No worries. There are two basic methods for setting up Geronimo, each with its own advantages and disadvantages. This article covers both methods and presents some of the arguments for and against them. It gives you step-by-step instructions on getting Geronimo up and running in minutes. And the nice thing is there won't be any dishes to clean up after you're done. This meal will be well worth it when it's properly prepared.

( Permalink: Cookbook for Apache Geronimo install in minutes      Submitted by Anonymous Mon Nov 27, 2006 )

Featured Articles:
Unix and Linux Podcasting Guide

Expect and SSH

The Linux Enterprise Cluster

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Remote Backups With Rsync

Weakness and Security

Essential CVS

Spring Into Technical Writing

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Biodiesel Resources

Older News

Build a Basketball Team with GLPK
(Wed Nov 22, 2006)

How To Compile A Kernel - The Fedora Way
(Tue Nov 14, 2006)

How to keep a detailed audit trail
(Tue Nov 14, 2006)

New version of the standard text editor released
(Tue Nov 14, 2006)

Top six questions about running WebSphere on Linux
(Tue Nov 14, 2006)

Shake Some Sense into Your Linux ThinkPad
(Thu Nov 9, 2006)

How To Set up a repository cache with apt-cacher
(Thu Nov 9, 2006)

MySQL Internationalisation Gotcha
(Thu Nov 9, 2006)

Pointers and memory leaks in C
(Thu Nov 9, 2006)

Slash'EM on Linux
(Wed Nov 8, 2006)

How To Compile A Kernel - The Ubuntu Way
(Wed Nov 8, 2006)

Lintrack: Linux for Internet Service Providers
(Wed Nov 8, 2006)

System Administration Toolkit: Swap space
(Wed Nov 8, 2006)

Managing Xen With Xen-Tools, Xen-Shell, And Argo
(Tue Nov 7, 2006)

Use Oracle skills to quickly learn DB2 for Linux
(Tue Nov 7, 2006)

Avoiding greedy webclients with mod_bwshare
(Tue Nov 7, 2006)

Drupal 5.0 beta scaling new heights in the Content
(Tue Nov 7, 2006)

Mathematics on a UNIX workstation
(Tue Nov 7, 2006)

Spying Apache server activity and performance
(Thu Nov 2, 2006)

Remotely Manage Machines Using VNC
(Thu Nov 2, 2006)

Linux boot loader GRUB or LILO?
(Thu Nov 2, 2006)

Build a 2006 Space Odyssey HAL 9000
(Thu Nov 2, 2006)

How To Install VMware Server On Debian Sarge
(Wed Nov 1, 2006)

Data Visualization Tools for Linux
(Wed Nov 1, 2006)

PHP Accelerators
(Wed Nov 1, 2006)

Brief look at a couple of new features in Firefox
(Wed Nov 1, 2006)

How-to: Setup MySQL Backup in 15 minutes
(Mon Oct 30, 2006)

CLI tricks: Creating image thumbnails
(Mon Oct 30, 2006)

The Perfect Setup - Ubuntu 6.10 Server (Edgy Eft)
(Mon Oct 30, 2006)

Using and Customizing Templates in OpenOffice.org
(Mon Oct 30, 2006)

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Copyright 1999-2005 Noel Davis. Noel also runs web sites about sailing and kayaking.
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