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Miscellaneous related tutorials

Linux

Boot Linux Over HTTP With boot.kernel.org (BKO)

Post date: September 27, 2009, 09:09 Category: Miscellaneous Views: 3301 Comments
Tutorial quote: This tutorial shows how you can boot Linux over HTTP with boot.kernel.org (BKO). All that users need is Internet connectivity and a small program (gpxe) to boot the machine. This gpxe program provides network booting facility. BKO allows you to boot into the following distributions: Debian, Ubuntu, Damn Small Linux, Knoppix, Fedora. BKO provides gpxe images for USB sticks, CDs, and also for floppies, i.e., you can boot from a USB sticks, a CD, or a floppy.
Linux

Change Ctrl + Alt + Delete Behavior To Open System Monitor, in Linux

Post date: September 24, 2009, 12:09 Category: Miscellaneous Views: 2017 Comments
Tutorial quote: Actually, I've written this post before (quite a few months ago) but then deleted it because it didn't work. In the mean time, I found out why, so I decided to post it again. I find pressing Control + Alt + Delete to open up System Monitor to be very useful, especially for Windows users who are used to it and may actually press this quite a few times before realizing it doesn't do anything or what it does in Windows. Using System Monitor, you can preview all running processes, end or kill them, see how much CPU a process is using, CPU + memory + network history, available disk space and even change how much CPU a process should use.

There are 2 ways of changing Ctrl + Alt + Delete behavior to open System Monitor: one if you are running Compiz, and one for Metacity, only to use if you are not running Compiz.
Linux

Real-Time Earth Wallpaper For Linux

Post date: September 20, 2009, 08:09 Category: Miscellaneous Views: 2131 Comments
Tutorial quote: We already wrote about a wallpaper application for Linux which displays the current weather, moon phases and time of day based on your current location, in real time. This time, I'm going to tell you about a script created by Claudio Novais @ Ubuntued which displays a picture of the Earth, in real time, like so:
Debian

How To Limit CPU Usage Of A Process With cpulimit (Debian/Ubuntu)

Post date: September 14, 2009, 09:09 Category: Miscellaneous Views: 3326 Comments
Tutorial quote: This tutorial shows how you can limit the CPU usage of a process with the tool cpulimit on Debian/Ubuntu. cpulimit is a simple program that attempts to limit the CPU usage of a process (expressed in percentage, not in cpu time). This is useful to control batch jobs, when you don't want them to eat too much CPU. It does not act on the nice value or other scheduling priority stuff, but on the real CPU usage. Also, it is able to adapt itself to the overall system load, dynamically and quickly.
Ubuntu

How To Add A Splash Image To GRUB 2 On Ubuntu 9.04

Post date: September 3, 2009, 09:09 Category: Miscellaneous Views: 2140 Comments
Tutorial quote: This tutorial shows how you can add a splash image to your GRUB 2 boot loader on Ubuntu 9.04. Please note that you should use this tutorial only if you have upgraded your bootloader to GRUB 2 previously.
Debian

Boot On BTRFS With Debian

Post date: August 2, 2009, 11:08 Category: Miscellaneous Views: 2878 Comments
Tutorial quote: This tutorial will explain you how to boot from a BTRFS filesystem with kernel 2.6.31-RC4 and BTRFS 0.19. BTRFS is a new filesystem with some really interesting features like online defragmenting and snapshots. BTRFS is an experimental filesystem, use at your own risk. The kernel used is also experimental.
Fedora

Using iSCSI On Fedora 10 (Initiator And Target)

Post date: May 28, 2009, 10:05 Category: Miscellaneous Views: 3928 Comments
Tutorial quote: This guide explains how you can set up an iSCSI target and an iSCSI initiator (client), both running Fedora 10. The iSCSI protocol is a storage area network (SAN) protocol which allows iSCSI initiators to use storage devices on the (remote) iSCSI target using normal ethernet cabling. To the iSCSI initiator, the remote storage looks like a normal, locally-attached hard drive.
Debian

Setting Up A PXE Install Server For Multiple Linux Distributions On Debian Lenny

Post date: May 26, 2009, 10:05 Category: Miscellaneous Views: 7128 Comments
Tutorial quote: This tutorial shows how to set up a PXE (short for preboot execution environment) install server on Debian Lenny. A PXE install server allows your client computers to boot and install a Linux distribution over the network, without the need of burning Linux iso images onto a CD/DVD, boot floppy images, etc. This is handy if your client computers don't have CD or floppy drives, or if you want to set up multiple computers at the same time (e.g. in a large enterprise), or simply because you want to save the money for the CDs/DVDs. In this article I show how to configure a PXE server that allows you to boot multiple distributions (i386 and x86_64): Debian Lenny, Ubuntu 9.04, Fedora 10, CentOS 5.3, OpenSuSE 11.1, and Mandriva 2009.1.
Fedora

Installing MyDNS & MyDNSConfig 3 On Fedora 10

Post date: May 24, 2009, 11:05 Category: Miscellaneous Views: 3416 Comments
Tutorial quote: In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig 3 on Fedora 10. MyDNS is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. MyDNSConfig is an easy to use web-based interface to MyDNS. MyDNSConfig can create all types of DNS records that are available in MyDNS and adds features like user management and access privileges.
Ubuntu

Virtualization With KVM On Ubuntu 9.04

Post date: May 19, 2009, 12:05 Category: Miscellaneous Views: 5191 Comments
Tutorial quote: This guide explains how you can install and use KVM for creating and running virtual machines on an Ubuntu 9.04 server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM). KVM is short for Kernel-based Virtual Machine and makes use of hardware virtualization, i.e., you need a CPU that supports hardware virtualization, e.g. Intel VT or AMD-V.
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