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Get an overview of the AIX page replacement
Go through detailed information on how the AIX virtual memory manager works and how to use tunable parameters to adjust the operation of the AIX VMM. The operation of the AIX VMM is critical to the performance of a system, and it also provides several tunable parameters that you can use to optimize its operation for different workloads.

( Permalink: Get an overview of the AIX page replacement      Submitted by BlueVoodoo Fri Jan 11, 2008 )

AIX NFS v4 configuration over Kerberos inter-realm
In this tutorial, learn how to configure an inter-realm setup between IBM Network Authentication Service (IBM NAS) and Microsoft Active Directory for AIX Network File System (NFS) Version 4.

( Permalink: AIX NFS v4 configuration over Kerberos inter-realm      Submitted by BlueVoodoo Fri Jan 11, 2008 )

Use Project Zero's APIs to build a simple wiki
Project Zero is a simplified development platform focused on the agile development of Web 2.0 applications following a Service-Oriented Architecture (SOA). Among Project Zero's arsenal of libraries is a simplified API for executing SQL queries. Learn how to leverage these APIs to build a simple wiki.

( Permalink: Use Project Zero's APIs to build a simple wiki      Submitted by Anonymous Fri Jan 11, 2008 )

Automatically Add A Disclaimer To Emails
This tutorial shows how to install and use alterMIME. alterMIME is a tool that can automatically add a disclaimer to emails. In this article I will explain how to install it as a Postfix filter on Debian Etch.

( Permalink: Automatically Add A Disclaimer To Emails      Submitted by Falko Timme Wed Jan 9, 2008 )

ssh on multiple servers Using cluster ssh
Cluster SSH opens terminal windows with connections to specified hosts and an administration console. Any text typed into the administration console is replicated to all other connected and active windows. This tool is intended for, but not limited to, cluster administration where the same configuration or commands must be run on each node within the cluster.Performing these commands all at once via this tool ensures all nodes are kept in sync. Full Story

( Permalink: ssh on multiple servers Using cluster ssh      Submitted by dave Wed Jan 9, 2008 )

Zabbix
"Zabbix provides a rich set of functions by which to create your triggers, such as average change over time, min and max, absolute difference, etc. This means that I could, for instance, create a trigger that alerted me if since the last polling interval more than 10 users logged in or if the average number of users over the course of an hour exceeded 50."
The Blog of Ben Rockwood: Zabbix

( Permalink: Zabbix      Submitted by Noel Wed Jan 9, 2008 )

Saving Power on Intel Hardware Using Powertop
PowerTOP is a Linux tool that finds the software component(s) that make your laptop use more power than necessary while it is idle. As of Linux kernel version 2.6.21, the kernel no longer has a fixed 1000Hz timer tick. This will (in theory) give a huge power savings because the CPU stays in low power mode for longer periods of time during system idle. Full Story

( Permalink: Saving Power on Intel Hardware Using Powertop      Submitted by dave Wed Jan 9, 2008 )

A Nickel's Worth: Effective .emacs
Bunch of nice tips for using emacs.
"Your .emacs file shouldn't contain any calls to LOAD or REQUIRE (which are slow and often cause errors on startup). The only possible exceptions are loading files that contain nothing but autoloads (or similar stuff). How do you avoid loads and requires? First try removing each call to LOAD or REQUIRE to see if it's needed at all. Often (e.g., if you follow Tip #0) Emacs already has autoloads in place for the library already (e.g., "cc-mode"). For other libraries, where that's not true, put your own autoloads in your .emacs file. For example, rather than load slime in my .emacs (so I can bind the F1 key to SLIME-SELECTOR), instead I have: "
A Nickel's Worth: Effective .emacs

( Permalink: A Nickel's Worth: Effective .emacs      Submitted by Noel Tue Jan 8, 2008 )

How to setup Apache Tomcat 5.5 on Debian Etch
Apache Tomcat is a web container, or application server developed at the Apache Software Foundation (ASF). Tomcat implements the servlet and the JavaServer Pages (JSP) specifications from Sun Microsystems, providing an environment for Java code to run in cooperation with a web server. It adds tools for configuration and management but can also be configured by editing configuration files that are normally XML-formatted. Tomcat includes its own internal HTTP server. Full Story

( Permalink: How to setup Apache Tomcat 5.5 on Debian Etch      Submitted by dave Tue Jan 8, 2008 )

Linux PDF editor for manipulating PDF documents
Adobe Acrobat is a commercial tool for manipulating PDF files. Earlier I was using CUPs - printing system, to export PDF files. Iíve also tried out gv for the same purpose. However, I needed complete editing of pdf documents. My search ended with PDFedit software, which is free and open source editor for manipulating PDF documents. The software available in both GUI and CLI (commandline) interface.

Linux PDF editor - PDFEdit

( Permalink: Linux PDF editor for manipulating PDF documents      Submitted by Anonymous Tue Jan 8, 2008 )

Keystroke security dynamics from custom Perl
Measure the total time of entry and verify the time between keystrokes to help authenticate a user regardless of the data being entered. Learn how to apply the open source tools xev and Perl in keystroke dynamics to measure the more-subtle characteristics of human-computer interaction. This article uses example code to demonstrate keystroke dynamics for enhancing the security of your applications in authentication and continuous data entry contexts.

( Permalink: Keystroke security dynamics from custom Perl      Submitted by Anonymous Tue Jan 8, 2008 )

Steps to install gOS on Ubuntu Gutsy Gibbon
I am sure by now you have heard of the gPC loaded with gOS via various news sources. For those in the dark, gPC stands for green PC which is a sub $200 PC which comes loaded with a customized version of Ubuntu known as gOS or in popular parlance called Google OS. This article explains how to install all the files related to gPC on a working Ubuntu Linux distribution.
Read the full article

( Permalink: Steps to install gOS on Ubuntu Gutsy Gibbon      Submitted by lh Mon Jan 7, 2008 )

IPBlock - Graphical IP Blocker
iplist allows users with no or basic knowledge of iptables to filter (e.g. to block) network traffic based on (automatically updated) lists. These lists have various formats and are sorted by different categories (e.g. countries, adware, corporations). Full Story

( Permalink: IPBlock - Graphical IP Blocker      Submitted by dave Mon Jan 7, 2008 )

OpenLDAP + Samba Domain Controller
This document is a step by step guide for configuring Ubuntu 7.10 as a Samba Domain Controller with an LDAP backend (OpenLDAP). The point is to configure a server that can be comparable, from a central authentication point of view, to a Windows Server 2003 Domain Controller. The end result will be a server with an LDAP directory for storing user, group, and computer accounts. A Windows XP Professional SP2 workstation will be able to join the domain once properly configured.

( Permalink: OpenLDAP + Samba Domain Controller      Submitted by Falko Timme Mon Jan 7, 2008 )

PHP can slice and dice input quickly
Pattern matching is such a common chore for software that a special shorthand ó regular expressions ó has evolved to make light work of the task. PHP applications manage increasingly large amounts of data. Whether you need to validate form input or decompose content, this article will show you how PHP regular expressions can do the trick easily.

( Permalink: PHP can slice and dice input quickly      Submitted by Anonymous Mon Jan 7, 2008 )

Featured Articles:
Unix and Linux Podcasting Guide

Expect and SSH

The Linux Enterprise Cluster

Book Review: Podcasting: Do-It-Yourself Guide

Remote Backups With Rsync

Weakness and Security

Essential CVS

Spring Into Technical Writing

Other News:
Biodiesel Resources

Older News

Snapshot Backups Of Your Desktop With TimeVault
(Fri Dec 21, 2007)

Book Review: Linux Networking Cookbook
(Fri Dec 21, 2007)

Kerberos policy management for AIX v. 5.3
(Fri Dec 21, 2007)

How to: Linux configure pound reverse proxy
(Tue Dec 18, 2007)

SAMBA (Domaincontroller) Server
(Tue Dec 18, 2007)

Container Virtualization for Cell/B.E. and Linux P
(Tue Dec 18, 2007)

Why (almost) every Web site needs an RDBMS
(Tue Dec 18, 2007)

How to: Linux Demilitarized Zone (DMZ) Firewall
(Mon Dec 17, 2007)

Installation Guide: CentOS 5.1 Desktop
(Mon Dec 17, 2007)

Virtual Users And Domains
(Mon Dec 17, 2007)

Parse RDDL Documents with PHP
(Mon Dec 17, 2007)

Managing with Net-SNMP and IPython
(Mon Dec 17, 2007)

Identifying slow MySQL queries
(Fri Dec 14, 2007)

Time Machine HD Swap: Secret of the Time Machine
(Fri Dec 14, 2007)

Ubuntu / Debian Linux: Services Configuration Tool
(Fri Dec 14, 2007)

Intermediate widgets with Perl/Tk module, Part 2
(Fri Dec 14, 2007)

How To Set Up Software RAID1 On A Running System
(Fri Dec 14, 2007)

Exploring Leopard with DTrace
(Thu Dec 13, 2007)

Setting up a BIND DLZ Nameserver with MySQL
(Thu Dec 13, 2007)

CentOS 5.1 Server Setup: LAMP, Email, DNS, FTP
(Thu Dec 13, 2007)

Exploring MVC-style in Zend PHP, symfony, and Cake
(Thu Dec 13, 2007)

Lazy Programming
(Thu Dec 13, 2007)

Securing your VNC connection using SSH
(Wed Dec 12, 2007)

Working with vast raster images: NIP2
(Wed Dec 12, 2007)

Virtual Users And Domains With Postfix & Courier
(Wed Dec 12, 2007)

Robots, mazes, and subsumption architecture
(Wed Dec 12, 2007)

Howto Setup a Remote Calendar using WebDAV
(Tue Dec 11, 2007)

We're only Human after all: a review of Ubuntu 7.1
(Tue Dec 11, 2007)

Adding And Updating SpamAssassin Rulesets
(Tue Dec 11, 2007)

Accessing DFS and NFS V4 Simultaneously
(Tue Dec 11, 2007)

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