# RootPrompt.org   Nothing but Unix.[Home] [Features] [Programming] [Mac OS X] [Search]

SELinux and Smack modules for Linux containers
A common response when someone first hears about containers is "How do I create a secure container?" This article answers that question by showing you how to use Linux Security Modules (LSM) to improve the security of containers. In particular, it shows you how to specify a security goal and meet it with both the Smack and SELinux security modules.

( Permalink: SELinux and Smack modules for Linux containers      Submitted by Anonymous Tue Feb 17, 2009 )

Perform uniform mounting with generic NFS
This article discusses the architecture and the mechanism behind a generic NFS mounter, a utility that will undoubtedly help the NFS clients by providing easier, one-point access to the files on the NFS server and by offering a more consolidated view of the NFS space. See how to automatically consolidate many different NFS versions into a uniform mount.

( Permalink: Perform uniform mounting with generic NFS      Submitted by Anonymous Mon Feb 16, 2009 )

Five network tricks for Linux on S/390 systems
Linux brings the power of Open Source Unix tools to the S/390 mainframe. All the current versions of standard Unix services may run in a Linux partition gaining the advantages of mainframe hardware. This article shares five troubleshooting tips to counter the various problems that can arise when you bring up a Linux system on a System z series machine.

( Permalink: Five network tricks for Linux on S/390 systems      Submitted by Anonymous Mon Feb 16, 2009 )

Air and KDE 4.3.
Pretty pictures from KDE 4.3.
"KDE will very shortly become the desktop you need and not the desktop we think you need.

And I find that very very exciting."

Air and KDE 4.3.

( Permalink: Air and KDE 4.3.       Submitted by Noel Mon Feb 16, 2009 )

Book Review: A Practical Guide to Ubuntu Linux
Sounds like a good book if you want (or need) a book on Ubuntu.
"A casual viewing of the book's back cover tells the reader that they can expect to find out just about everything there is to know about anything they can do with Ubuntu. While most folks think of Ubuntu as the most "desktop user" friendly version of Linux, and the most likely contender to chip away at Microsoft Windows' death grip on the home desktop market, there's a lot more to consider. At least according to the blurb I read, the server aspects of Ubuntu are well covered here."
Review: A Practical Guide to Ubuntu Linux (Versions 8.10 and 8.04) 2nd Ed

( Permalink: Book Review: A Practical Guide to Ubuntu Linux      Submitted by Noel Fri Feb 13, 2009 )

OpenSolaris Bible sample chapters
Dave Miner points us at some sample chapters from the "OpenSolaris Bible" written by Dave, Nicholas Solter, and Jerry Jelinek.
"Chapter 3 should be especially valuable to those new to OpenSolaris, as it's a 54-page "crash course" introduction to using OpenSolaris, introducing you to the basics you'll need in the first day or two after installation. Chapter 8 covers ZFS, and is more representative of the bulk of the book: it's a 40-page tour of the capabilities of this key feature of OpenSolaris. "
OpenSolaris Bible sample chapters

( Permalink: OpenSolaris Bible sample chapters      Submitted by Noel Thu Feb 12, 2009 )

Multiple shell management with GNU Screen
If you've spent hours on a task, such as debugging an application, it can be maddening to lose your work in an instant. This article shows you how to keep your shell and your work alive, even across multiple sessions and dropped connections using GNU Screen. Screen is a remarkable tool that you will quickly find invaluable in any work you perform on the command line. In fact, use it once, and you will wonder how you ever lived without it.

( Permalink: Multiple shell management with GNU Screen      Submitted by Frank Thu Feb 12, 2009 )

KDE 4.2 officially released
Think about what the state of the art was just a few years ago. Amazing what we have today.
"There are major improvements throughout the entire stack. The Plasma desktop shell gained additional panel functionality, a new notification system, and support for building plasmoids with Ruby and Python; I took a look at some of these features in my coverage of the 4.2 beta release. KDE 4.2 also introduces improved support for visual effects and compositing-based window management features."
KDE 4.2 officially released

( Permalink: KDE 4.2 officially released      Submitted by Noel Thu Feb 12, 2009 )

Linux can rule cloud computing
You can't read a technical Web site these days without some mention of so-called cloud computing. This article discusses the anatomy of cloud computing and how Linux and the open source community contribute to the world of cloud computing. As you might have guessed, Linux and open source technologies play a huge role.

( Permalink: Linux can rule cloud computing      Submitted by Anonymous Wed Feb 11, 2009 )

Converting your Linksys router to Linux
I bought a Linksys WRT-54GL router five years ago specifically so I could install Linux on it. Well one thing left to another and I never got around to doing that... until a few weeks ago. This process was relatively simple once I figured it all out but some of the documentation was a little confusing. So, I wrote it all down here.

( Permalink: Converting your Linksys router to Linux      Submitted by Phil Hollenback Wed Feb 11, 2009 )

Five Questions With Michael Widenius
What has gotten him back in the news is that he just left his job for Sun. For those that have not payed attention some time back Sun bought MySQL. Not sure Sun looses in this as he says that he is going to continue working on MySQL and start a community branch.

Our local Sun people are absolutely fantastic, and sometimes when I read things like this, the problems that other people may have had with Sun or working for Sun, it does not even seem like it could be the same company. (Thank you Susan and Jeff)

I really like MySQL so let me say thank you to Monty for writing it, and a thank you to all those who have contributed over the years.

"My friends call me Monty. I have some talents in writing working C code and know a little bit about databases. Some years ago (1994) I put these talents to some use and wrote the MySQL database on top of my old database project that I started in 1982. David Axmark (the second founder of MySQL) and I released it 'open source like' (this was before open source) in 1995 because we wanted do some good and we thought that 'at least we wouldn't get less business by doing this'. The end result did way exceed our expectations."
Five Questions With Michael Widenius

( Permalink: Five Questions With Michael Widenius      Submitted by Noel Wed Feb 11, 2009 )

Optimizing iSCSI and VMware
Great article that tells us some of the details about using iSCSI to provide disk to VMware. I especially like the approach of designing the IP infrastructure just like you would design a fibre channel infrastructure. As they say, "IP storage needs the same sort of design thinking (as) applied to FC infrastructure."
"Can you get high throughput with iSCSI with GbE on ESX? The answer is YES. But there are some complications, and some configuration steps that are not immediately apparent. You need to understanding some iSCSI fundamentals, some Link Aggregation fundamentals, and know some ESX internals none of which are immediately obvious"
Optimizing iSCSI and VMware

( Permalink: Optimizing iSCSI and VMware      Submitted by Noel Tue Feb 10, 2009 )

Creating and using the new Phar archives in PHP V5
This article takes a close look at the new PHP5.3 feature called Phar, which is an archive format that can be used within PHP. Phar can be used to not only archive files but also to deliver and run an entire PHP application from a single file. Unlike JAR archives, Phar archives can be processed by PHP itself and don't require an external tool to create or use them.

( Permalink: Creating and using the new Phar archives in PHP V5      Submitted by Frank Mon Feb 9, 2009 )

How to use LVM to migrate filesystems to a RAID
I recently had to migrate a single disk CentOS 4 system to a mirrored raid. Since I had used LVM in the original setup I was able to accomplish most of this seamlessly while the machine was in production. Here's how I did it.

( Permalink: How to use LVM to migrate filesystems to a RAID      Submitted by Phil Hollenback Mon Feb 9, 2009 )

ZFS: Transaction Groups & Disk Performance
"So, first things first. On a ZFS system never look at iostat alone. Always open 2 terminals side-by-side and in one terminal watch fsstat zfs 1 and in another watch iostat -xn 1 (or 10 seconds, whatever your happy with). By watching both of these you'll get a better idea of whats really going on, and I expect that you'll be impressed by what you see."

ZFS is really very cool. Lots of good stuff in there. In our environment it may not be that useful as most of the disk is already RAIDed on the SAN. But I will stick to my cool statement anyway.

Ben Rockwood has some great information on evaluating disk io for a zfs filesystem.

Paste the link into your browser to avoid some sort of anti-spam idea he has: http://www.cuddletech.com/blog/archives/archive_2009-m01.php

( Permalink: ZFS: Transaction Groups & Disk Performance      Submitted by Noel Mon Feb 9, 2009 )

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

Status of RootPrompt.org
(Fri Feb 6, 2009)

Sun xVM VirtualBox
(Fri Feb 6, 2009)

Using GPG with GMail
(Thu Feb 5, 2009)

Information about MySQL on Clusters
(Wed Feb 4, 2009)

Open HA Cluster: MySQL highly available on Solaris
(Tue Feb 3, 2009)

Stop VIM Autocommenting
(Thu May 29, 2008)

Redundant Array Of Inexpensive Disks (RAID)
(Thu May 29, 2008)

Picking the right Eclipse distribution for you
(Thu May 29, 2008)

Watching Live-TV On Your Ubuntu Desktop With Zatto
(Wed May 28, 2008)

Manage Widget Geometry in PyGTK
(Wed May 28, 2008)

How To Install A TeamSpeak Server
(Wed May 28, 2008)

Changing The Language & Keyboard Layout
(Tue May 13, 2008)

How to: Asus Eee PC protection with privacy filter
(Tue May 13, 2008)

Unison - file synchronization tool
(Tue May 13, 2008)

Debug and tune apps on the fly with Firebug
(Tue May 13, 2008)

The Perfect Desktop - Mandriva One 2008 Spring
(Wed Apr 23, 2008)

Managing The GRUB Bootloader With QGRUBEditor
(Wed Apr 23, 2008)

Identify speakers with sndpeek
(Wed Apr 23, 2008)

Workload Partitioning (WPAR) in AIX 6.1
(Wed Apr 23, 2008)

Scheduled Backups With Rsyncbackup On Debian Etch
(Mon Apr 21, 2008)

Introducing Linux Client Pilot
(Mon Apr 21, 2008)

Tools to access Linux Partitions from Windows
(Mon Apr 21, 2008)

Visually Impaired Flash Usability Tool
(Mon Apr 21, 2008)

Unattended Fedora 8 Installation
(Tue Apr 8, 2008)

Running Linux on PS3: Working with Memory
(Tue Apr 8, 2008)

Upgrade Ubuntu 7.10 (Gutsy Gibbon) to Ubuntu 8.04
(Thu Mar 27, 2008)

How To Set Up Software RAID1 On A Running LVM
(Thu Mar 27, 2008)

Linux Directory Structure Overview
(Thu Mar 27, 2008)

Terminal functions for shell scripting with Shell
(Thu Mar 27, 2008)

Name from PID with DTrace
(Tue Mar 25, 2008)

[Latest News] [Newer News] [Older News]

Our content can be syndicated: Main Page Mac Page
(Validate RSS code)

Copyright 1999-2005 Noel Davis. Noel also runs web sites about sailing and kayaking.
All trademarks are the property of their owners.
All articles are owned by their author