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Cloud computing with Android Linux
The open source Android operating system has allowed for sophisticated Cloud Computing applications to run wherever you are. Designed to be highly efficient on battery-powered devices like the T-Mobile G1 smartphone, at heart, Android is Linux. Learn more about the several layers to the Android programming model that permit the creation of secure applications that are tailor-made for Cloud Computing.

( Permalink: Cloud computing with Android Linux      Submitted by Anonymous Tue Apr 14, 2009 )

GNU Radio: the open-source software defined Radio
Pretty cool stuff. Prices from Ettus don't look too bad. For Ham stuff that is.
"GNU Radio applications are mainly written in Python; however, the critical and low-level algorithms and signal processing modules are written using the C/C++ programming language, with wide usage of floating-point specific instructions for the relevant processor. Python is primarily used to setup the flow graph, after that most of the work is done in C/C++. GNU Radio is simple to use and a radio receiver can be created in a fast and straightforward manner; moreover, the development of a signal processing algorithm can be carried out using a pre-recorded or generated data set, thus allowing the development without the need for a real RF hardware. An example of minimal hardware required to work with GNU Radio is offered by the USRP, developed by Ettus Research LLC. "
GNU Radio: the open-source software defined Radio

( Permalink: GNU Radio: the open-source software defined Radio      Submitted by Noel Mon Apr 13, 2009 )

Get real-time system alearts with Ajax Chat
Wish you could have a dedicated, open source Web chat pop up in response to a system event that lets you know what's happening in real time. Your search is over with Ajax Chat, an application that's implemented in JavaScript, PHP and MySQL. You can get that function and much more with Ajax chat, a pop up chat perfect for system adminstrators. Learn how to change configurations, and add as many alert channels as you want. Put this in your Admin toolbox, and become aware of system problems faster.

( Permalink: Get real-time system alearts with Ajax Chat      Submitted by Anonymous Mon Apr 6, 2009 )

Add adanced Ajax to PHP apps with jQuerry
For some PHP developers, Ajax is still a mystery. It's something that the "cool kids" and "bad boys" of Web development do, and they've never had the time, patience, or skill to take it on. If you're one of these PHP developers, never fear: By the time you're done reading this article, you'll know enough to become a real Ajax pro. This article shows how to use jQuery to easily add Ajax functionality to any PHP Web application. When you're done, you should have a pretty good grounding in not only some jQuery basics but also in the fundamentals of Ajax.

( Permalink: Add adanced Ajax to PHP apps with jQuerry      Submitted by Anonymous Thu Apr 2, 2009 )

Powerful and flexable Python Multiprocessing
Learn to scale your UNIX Python applications to multiple cores by using the multiprocessing module which is built into Python 2.6. Multiprocessing mimics parts of the threading API in Python to give the developer a high level of control over flocks of processes, but also incorporates many additional features unique to processes.

( Permalink: Powerful and flexable Python Multiprocessing      Submitted by Anonymous Thu Apr 2, 2009 )

Linux High-performance computing off the shelf
The year 2008 will forever be remembered as the year of the off-the-shelf (OTS) supercomputer, thanks to the Los Alamos National Labs (LANL) and IBM team that constructed the world's first machine (Roadrunner) to break the peta-FLOP (1,000,000,000,000,000 floating-point operations per second) barrier. Get an overview of OTS strategies to architect high-performance computing (HPC) systems as well as the methods and concepts behind building HPC systems from OTS components and open source software.

( Permalink: Linux High-performance computing off the shelf      Submitted by Anonymous Thu Apr 2, 2009 )

Sync and Share Virtual Machine with DropBox
This is really clever. Even better that it is using the free option so you can give it a try without spending a bunch of money. And yet one more reason I should buy an Intel Mac.
"When you first create a virtual machine, it uploads the “virtual disk” to dropbox, which can take some time depending on your upload speed but once its created it gets synced with all your dropbox client computers."
Sync and Share Virtual Machine with DropBox

( Permalink: Sync and Share Virtual Machine with DropBox      Submitted by Noel Mon Mar 30, 2009 )

Compression on the Sun Storage 7000
Always interesting to read about zfs.
"With ZFS, compression is built directly into the I/O pipeline. When compression is enabled on a dataset (filesystem or LUN), data is compressed just before being sent to the spindles and decompressed as it's read back. Since this happens in the kernel, it's completely transparent to userland applications, which need not be modified at all. Besides the initial configuration (which we'll see in a moment is rather trivial), users need not do anything to take advantage of the space savings offered by compression. "
Compression on the Sun Storage 7000

( Permalink: Compression on the Sun Storage 7000      Submitted by Noel Fri Mar 27, 2009 )

Linux kernel advances
Life's certainties include death and taxes but also the advancement of the GNU/Linux operating system, and the last two kernel releases did not disappoint. The 2.6.28 and 2.6.29 releases contain an amazing amount of new functionality, such as a cutting-edge enterprise storage protocol, two new file systems, WiMAX broadband networking support, and storage integrity checking. Discover why it's time to upgrade.

( Permalink: Linux kernel advances      Submitted by Anonymous Fri Mar 27, 2009 )

Configuring true Ubuntu shared disks
This article describes how you can setup and configuration of iSCSI shared disks, and build a sample configuration of true shared disks and SD secondary servers on Ubuntu Linux. By following this procedure, you should be able to customize your own shared disks and SD secondary servers on Ubuntu Linux. You can also easily adapt the instructions for other Linux distributions.

( Permalink: Configuring true Ubuntu shared disks      Submitted by Anonymous Wed Mar 25, 2009 )

Chrooted SSH/SFTP Tutorial
"Since version 4.8, OpenSSH supports chrooting, so no patches are needed anymore. This tutorial describes how to give users chrooted SSH access. With this setup, you can give your users shell access without having to fear that they can see your whole system. Your users will be jailed in a specific directory which they will not be able to break out of. I will also show how to use chrooted SFTP."
Chrooted SSH/SFTP Tutorial

( Permalink: Chrooted SSH/SFTP Tutorial      Submitted by Noel Tue Mar 24, 2009 )

Cloud computing versus Grid computing
Learn how you can use Infrastructure as a Service to get a full computer infrastructure using Amazon's Elastic Compute Cloud (EC2). This article helps you plan ahead for working with cloud by knowing how cloud computing compares to grid computing,, how you can resolve issues in cloud and grid computing, and what security issues exist with data recovery and managing private keys in a pay-on-demand environment.

( Permalink: Cloud computing versus Grid computing      Submitted by Anonymous Mon Mar 23, 2009 )

Tiny Core Linux
Interesting little distribution.
"Tiny Core offers four basic modes of operation with varying degrees of persistence. The default mode is to boot into RAM and download applications over the Internet when you need to run them. Everything runs from RAM so nothing is left behind, including any settings or configuration information. Minimal hardware requirements include an i486DX processor (486 with math processor) and 32MB of RAM. A Pentium 2 or better processor with 128 MB of RAM is recommended."
Tiny Core Linux

( Permalink: Tiny Core Linux      Submitted by Noel Mon Mar 23, 2009 )

Designing a Linux PAM login security application
The Pluggable Authentication Module (PAM) API exposes a set of functions that application programmers use for security-related functions like user authentication, data encryption, LDAP, and more. In this article, get a basic guide to the PAM model on Linux, see how to configure PAM, and learn how to design a sample PAM login application in 10 easy steps.

( Permalink: Designing a Linux PAM login security application      Submitted by Anonymous Thu Mar 19, 2009 )

The Squirrel portable shell and scripting language
If you don't want to commit to the idiosyncrasies of a specific shell running on a particular platform, try the Squirrel Shell. The Squirrel Shell provides an advanced, object-oriented scripting language that works equally well on UNIX, Linux, Mac OS X, and Windows systems. Write a script once, and run it anywhere.

( Permalink: The Squirrel portable shell and scripting language      Submitted by Frank Thu Mar 19, 2009 )

Featured Articles:
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Older News

500Mbps over copper wiring
(Wed Mar 18, 2009)

Backing up MySQL
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Finding rootfs during boot
(Tue Mar 17, 2009)

Lithium battery breakthrough
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Vim Cheatsheet Revisited
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10 tips from Benjamin Franklin for System Admins
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Networking Analytics Example
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Launch batches of self-configuring virtual machine
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Inside the Mac Mini
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Linux cluster monitoring with Gangia
(Fri Mar 6, 2009)

Hands-on: fat-free Xfce 4.6
(Fri Mar 6, 2009)

Add Twitter-like functions to any application
(Thu Mar 5, 2009)

(Thu Mar 5, 2009)

10 steps to UNIX nirvana
(Wed Mar 4, 2009)

Dealing with the dovecot X-UID bug
(Wed Mar 4, 2009)

Overview of the Debian package system
(Tue Mar 3, 2009)

Best Home Server Software
(Mon Mar 2, 2009)

Tour the Linux generic SCSI driver
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Marvell's Plug Computer
(Mon Mar 2, 2009)

Encrypted USB Drives
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Manage blogs on AIX with open source CMS tools
(Thu Feb 26, 2009)

Build a faster and more secure UNIX file system
(Thu Feb 26, 2009)

Upgrading MySQL with Replication
(Thu Feb 26, 2009)

Serious considerations before upgrading to PHP 5.3
(Wed Feb 25, 2009)

Moving data from MS SQL to MySQL
(Wed Feb 25, 2009)

Anatomy of ext4
(Tue Feb 24, 2009)

(Tue Feb 24, 2009)

The power of 3's
(Mon Feb 23, 2009)

pkgwatch -- A Package Management Wrapper
(Fri Feb 20, 2009)

Need Inodes?
(Wed Feb 18, 2009)

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