Ext4 is the latest in a long line of Linux® file systems, and it's likely to be as important and popular as its predecessors. As a Linux system administrator, you should be aware of the advantages, disadvantages, and basic steps for migrating to ext4.
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The Progress Of X.Org 7.4
If all goes according to plan, X.Org 7.4 will finally be released this month. This release isn't quite as elaborate as X.Org 7.3, which introduced input hot-plugging, EXA enhancements, and RandR 1.2 to just name a few features, but X.Org 7.4 is another update better enhancing this X server.
Read more »Secure Calling Initiative Reaches Second Milestone
"...GNU Telephony Secure Calling is intended to make it both possible, and easy, for individuals, private organizations, and public institutions to deploy secure realtime voice and video communications (VoIP) both in closed and openly accessible networks, and to do so in a manner which helps make passive and warrantless communication intercept of private communication a thing of the past.
Read more »Scripting for the Desktop with Plasma in KDE 4
Three are three audiences: libplasma, ninjas and myspacers. Whole areas of Plasma library are designed around the eventual use cases for interpreted languages. The new widget programming interface for KDE 4.1 was designed 100% for the foundation of sane interpreted languages API exporting.
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Disabling the GMail spam filter and handling it yourself using SpamAssassin
I've been using GMail ever since they decided to allow users to download their mail using POP. I was happy reading my email as usual in mutt. The only problem was that I had to log onto the website once in a while to clear out my spam folder and fish out the false positives.
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Git from the bottom up
"In my pursuit to understand Git, it’s been helpful for me to understand it from the bottom up — rather than look at it only in terms of its high-level commands. And since Git is so beautifully simple when viewed this way, I thought others might be interested to read what I’ve found, and perhaps avoid the pain I went through finding it..."
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Diving into Git
"This week I decided to convert my Ledger repository over to Git. Previously I’d been using Subversion for about 4 years, and CVS for 1 year before that. There was a brief flirt with Darcs, and Mercurial, but neither ever attracted me enough to convert the repository officially..."
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Idioms for programming in Arc
"The code that implements Arc illustrates many useful programming techniques. Some of the techniques occur multiple times, and can be considered idioms of Arc programming; techniques that can be applied to many problems. This article describes some of the most common idioms, and how they can be used in Arc programming.
Read more »Protecting directory trees with gpgdir
gpgdir uses GNU Privacy Guard (GnuPG) to encrypt and decrypt files or a directory tree. You could accomplish the same objective by tarring the filesystem up and then encrypting the tar.gz file with GnuPG, but then you would still have to shred or wipe every file in the original directory tree. With gpgdir the whole tree is encrypted in one command.
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Introduction to Forensics
There are certain aspects to system administration that you can learn only from experience. Computer forensics (among other things the ability to piece together clues from a system to determine how an intruder broke in) can take years or even decades to master. If you have never conducted a forensics analysis on a computer, you might not even know exactly where to start.
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Checking Hard Disk Sanity With Smartmontools (Debian & Ubuntu)
This guide shows how to install and use the smartmontools package on Debian Etch and Ubuntu 7.10. The smartmontools package provides utilities to check hard disks for disk degradation and failure, using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA and SCSI hard disks.
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Green PCs: CPU frequency scaling in Linux
Electricity bills got higher again? Does your computer waste too many power cycles? Or perpahs you just don’t feel green enough? In any case, this article is for you! You’ll learn how to save energy and CPU cycles with your Linux box, no matter how old it is.
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Automatically compile and install the latest kernel using KernelCheck in Ubuntu
KernelCheck is a project that is designed to easily build the latest kernel for your distribution using the instructions provided in the Master Kernel Thread .
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Benchmarking Linux filesystems on software RAID 1
I have benchmarked various Linux filesystems using different blocksizes and workloads on an mdadm RAID 1 setup using two Western Digital 500 GB SATA 3.0 drives and a 3ware 9550XS 4-port hardware RAID card (which I had trouble getting to work initially). It's not as extensive as I would have liked, but I came across some interesting results.
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OpenMoko FreeRunner to be available for $399 - Open-source Linux handset set to launch
Fans of the OpenMoko Neo1973 open-source Linux handset will be glad to hear that they'll soon be able to get their hands on the Neo1973's successor in the near future. The OpenMoko FreeRunner sports a faster processor than its predecessor and adds three-axis motion sensors to the mix.
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