In a continued thread about how the recently merged Completely Fair Scheduler affects the nice command, Ingo Molnar offered a history of nice levels in the Linux kernel.
Read more »Virtual Hosting With PureFTPd And MySQL (Incl. Quota And Bandwidth Management) On Mandriva 2007 Spring
This document describes how to install a PureFTPd server that uses virtual users from a MySQL database instead of real system users. This is much more performant and allows to have thousands of ftp users on a single machine. In addition to that I will show the use of quota and upload/download bandwidth limits with this setup. Passwords will be stored encrypted as MD5 strings in the database.
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Howto Install Irssi...
Many Ubuntu users will find themselves needing help with their new OS. Many of them will turn to the Ubuntu forums, others will search the web, and then many will simply join the #ubuntu channel on irc.freenode.net. The #ubuntu channel is full of people, and you can get help for most of your...
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NVIDIA GeForce 8: Linux vs. Windows
With the GeForce 8 series we have come across some unusual issues that are limiting the performance of the GeForce 8 series under Linux and Solaris. In this article, we have additional information on these austere performance problems along with benchmarks showing the frame-rate differences between Windows XP and Linux.
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Xi Graphics, Inc. Releases Wall Display Graphics Support Software
Xi Graphics, Inc. announced that it has added a new Series of software products to its Summit Series product line for X Window System ("X") users.
Read more »Xandros bundles NoMachine thin-client server
Linux distributor Xandros along with NoMachine, maker of NX virtualization desktop, remote access and server management software, will announce on July 18 that NoMachine's NX Enterprise Server will start shipping immediately with Xandros Server 2.0.
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How to Easily Monitor your Website Uptime for Free
Currently, there are a bunch of website monitors available, some are free, but I couldn’t find any that was really simple and satisfy our requirements.
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HP and MIT form DSpace Foundation
HP and MIT have provided initial funding for the DSpace Foundation, an organization dedicating to supporting users of DSpace, a FOSS archiving tool.
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Tips and tricks: How do I specify my installation key from within a kickstart file?
The Anaconda installer in Red Hat Enterprise Linux 5 provides a way of specifying the installation key in a kickstart file in order to allow for a fully unattended system install. Please see the two examples given below.
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Ubuntu Linux: Using Mutt and Gmail
This page is a guide to using the email client Mutt to send, receive and read email on an Ubuntu computer using a Gmail account as a relay as well as a description of my own path to this goal.
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Open Source Filtering Solutions and the Spam Problem
Let us face it, modern e-mail communication relying on SMTP is fundamentally broken - there is no sender authentication. There are lot of countermeasures in form of filtering and add-on authentication, but neither of them are proved to be 100% successful (that is 100% hit ratio with 0% of false positives).
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The Best Game in Town
In October 2006, Terra Soft announced its plan to build the world's first supercomputing cluster using the Sony PlayStation 3 (PS3), which utilizes the IBM Cell Broadband Engine and the Linux operating system. The idea emerged when Sony Computer Entertainment came knocking on Terra Soft's door, interested in showing that the PS3 is more than merely a game box.
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Linux: Debugging With "git bisect"
Following up to a bug report against the 2.6.22 kernel, Andrew Morton and Linus Torvalds offered some tips on how to debug kernel problems. Andrew first pointed to netconsole.txt for instructions on setting up a netconsole, "when the machine has stalled, see if you can get a task trace with ALT-SYSRQ-t.
Read more »Industrial Linux PCs gain GSM/GPRS, WiFi
SSV has added optional WiFi and GSM/GPRS networking to a small industrial PC targeting M2M (machine-to-machine) applications. The Com/PC is available with a Pentium M or Geode processor, runs Linux or Windows, and targets remote maintenance, tank field monitoring, telemetry, and POS/vending machine applications.
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Parsing arguments for your shell script
Suppose you want to have some options on your bash shell script, some flags that you can use to alter its behavior. You could do the parsing directly, using ${#} to tell you how many arguments have been supplied, and testing ${1:0:1} to test the first character of the first argument to see if it is a minus sign.
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