|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
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 )