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SuSe

gDesklets - Desklets for your Desktop in openSUSE

Post date: August 3, 2008, 13:08 Category: Desktop Views: 5974 Comments
Tutorial quote: gDesklets is another great tool like Google Gadgets for bringing mini programs called desklets such as weather forecasts, news tickers, system information displays, or music player controls, onto your desktop, where they are sitting there in a symbiotic relationship of eye candy and usefulness. The possibilities are really endless and they are always there to serve you whenever you need them, just one key-press away. The system is not restricted to one desktop environment, but currently works on most of the modern Unix desktops (including GNOME, KDE, Xfce).
OpenBSD

Hardening OpenBSD Internet Servers

Post date: April 11, 2006, 22:04 Category: Security Views: 9303 Comments
Tutorial quote: This tutorial on how-to harden or improve security on OpenBSD Internet servers includes sections that apply to any UNIX system. Hardening is making a computer more secure by removing unneeded functions, restricting access and tracking changes and processes. It was revised to cover OpenBSD 3.0 on Dec. 15, 2001 and includes an overview of the 2.9 to 3.0 changes. A new page on priorities ranks the value of the techniques presented here. Familiarity with UNIX system administration but not OpenBSD is assumed.
Fedora

Distributed Replicated Storage Across Four Nodes With GlusterFS On Fedora 12

Post date: March 9, 2010, 13:03 Category: Installing Views: 2342 Comments
Tutorial quote: This tutorial shows how to combine four single storage servers (running Fedora 12) to a distributed replicated storage with GlusterFS. Nodes 1 and 2 (replication1) as well as 3 and 4 (replication2) will mirror each other, and replication1 and replication2 will be combined to one larger storage server (distribution). Basically, this is RAID10 over network. If you lose one server from replication1 and one from replication2, the distributed volume continues to work. The client system (Fedora 12 as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86_64 servers with SATA-II RAID and Infiniband HBA.
CentOS

Distributed Replicated Storage Across Four Nodes With GlusterFS (CentOS 5.4)

Post date: March 23, 2010, 13:03 Category: Installing Views: 3420 Comments
Tutorial quote: This tutorial shows how to combine four single storage servers (running CentOS 5.4) to a distributed replicated storage with GlusterFS. Nodes 1 and 2 (replication1) as well as 3 and 4 (replication2) will mirror each other, and replication1 and replication2 will be combined to one larger storage server (distribution). Basically, this is RAID10 over network. If you lose one server from replication1 and one from replication2, the distributed volume continues to work. The client system (CentOS 5.4 as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86_64 servers with SATA-II RAID and Infiniband HBA.
Ubuntu

Distributed Replicated Storage Across Four Nodes With GlusterFS On Ubuntu 9.10

Post date: January 19, 2010, 12:01 Category: Installing Views: 2490 Comments
Tutorial quote: This tutorial shows how to combine four single storage servers (running Ubuntu 9.10) to a distributed replicated storage with GlusterFS. Nodes 1 and 2 (replication1) as well as 3 and 4 (replication2) will mirror each other, and replication1 and replication2 will be combined to one larger storage server (distribution). Basically, this is RAID10 over network. If you lose one server from replication1 and one from replication2, the distributed volume continues to work. The client system (Ubuntu 9.10 as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86_64 servers with SATA-II RAID and Infiniband HBA.
Debian

Installing Debian Etch From A Windows System With

Post date: September 27, 2007, 10:09 Category: Installing Views: 3135 Comments
Tutorial quote: Debian-Installer Loader is a Debian Etch installer for Windows which adds an entry to the boot menu that allows you to start the Debian installation. Unlike the Ubuntu installation with Wubi, real Debian partitions are created during the installation. In the end, you have a dual-boot system (Windows/Debian).
Debian

System encryption on Debian Etch

Post date: August 16, 2006, 16:08 Category: Security Views: 5041 Comments
Tutorial quote: In this article I will describe how to setup a nearly complete encrypted system using Debian Etch and cryptsetup with LUKS. The goal is: encrypt all partitions except /boot. The user should enter a password at boot time or provide a keyfile on an USB device to decrypt the root partition. Keyfiles for additional partitions are located on the root, so the user does not need to enter a password for every partition.
Debian

Disk Based Backups With Amanda On Debian Etch

Post date: September 23, 2007, 10:09 Category: Miscellaneous Views: 3786 Comments
Tutorial quote: This document describes how to set up Amanda (The Advanced Maryland Automatic Network Disk Archiver) on Debian Etch. For this tutorial I chose Ubuntu v7.04 as a backup-client. The resulting system provides a flexible backup system with many features. It will be able to back up multiple hosts via network to various devices. I chose the disk based backup for this howto.
Ubuntu

Insights for a quick and easy Ubuntu printer installation

Post date: June 4, 2006, 18:06 Category: Hardware Views: 7149 Comments
Tutorial quote: Ubuntu makes printing reasonably easy and straightforward. This brief article is for those who need a specific and encouraging step-by-step guide. I hope that this article will not only ensure that you print with ease, but that you have every reason to enjoy a productive GNU/Linux desktop.

Before you begin the installation steps below, connect your printer/s. You need to do this prior to turning your system on. This helps to ensure Ubuntu recognizes how the printer is connected to the system, and it allows Ubuntu to identify the specific printer port.

Please don’t be dismayed if you plug in your printer and it’s not immediately recognized. I assure you that Ubuntu recognizes the printer. However, you will first need to configure the printer as an available device so other programs can use it.

The Ubuntu Printing Configuration Tool is used to accomplish this. For my example I will use an HP Deskjet printer connected to the Ubuntu system via a USB cable. However, these steps will also apply to printers that connect via a direct or Parallel cable.
CentOS

Installing Xen On CentOS 5.0 (i386)

Post date: June 10, 2007, 22:06 Category: Installing Views: 4307 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install Xen on a CentOS 5.0 system (i386). Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called virtual machines or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other, but still use the same hardware.
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