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Debian

Create an Encrypted Loopback Device

Post date: April 12, 2005, 18:04 Category: Security Views: 4097 Comments
Tutorial quote: A loopback device is a very special device that allows you to mount a normal file as it was a physical device. loopbacks can be encrypted: this becomes very useful sometimes.

Consider, as na example, that you need to encrypt a few files, nothing big, let's say 100 MB or so. Encrypting an entire partition could be too much. Then a cryptoloop could be the right solution to your problem.
Linux

How To Make Desktop Applications Start Automatically After Login (GNOME)

Post date: November 9, 2007, 11:11 Category: Desktop Views: 4086 Comments
Tutorial quote: How To Make Desktop Applications Start Automatically After Login (GNOME)

You probably know this: you power on your machine, and immediately after you have logged in you manually start your two or three favourite applications. Why not have the system start these applications for you automatically? This short guide shows how to accomplish this under GNOME.
Solaris

Configuring Sendmail

Post date: April 13, 2005, 03:04 Category: Network Views: 4875 Comments
Tutorial quote: Sendmail has the reputation of having the most hideous configuration file in the history of mankind. It's extremely long and incredibly cryptic. However, it is this very complexity that has made it the most popular MTA (Mail Transport Agent) on the Internet. Its' flexibility allows sendmail to handle the most demanding, disjointed mail routing and serving configurations you can dream up.
Linux

Linux 2.6: Compiling and Installing

Post date: April 15, 2005, 22:04 Category: System Views: 3558 Comments
Tutorial quote: We'll look at the process of compiling and installing a new kernel safely, without overwriting the existing kernel.

You can install as many kernels as you like on a Linux system, and select the one you want to run at boot time. This makes it easy to test different kernels, and different kernel configurations, with particular sets of hardware or applications. The wise network admin always tests new kernels before running them on production machines.
OpenSUSE

Protection from malware using Squid proxy server

Post date: September 28, 2008, 09:09 Category: Security Views: 5222 Comments
Tutorial quote: Malware (for "malicious software") is any program or file that is harmful to a computer user. Thus, malware includes computer viruses, worms, Trojan horses, and also spyware, programming that gathers information about a computer user without permission.
Ubuntu

How To Install VMware Server On A Ubuntu 6.06 LTS (Dapper Drake) System

Post date: July 16, 2006, 16:07 Category: Software Views: 4067 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install the free VMware Server (version 1.0.0) on a Ubuntu 6.06 LTS (Dapper Drake) system.

VMware has just released version 1.0.0 of its free VMware Server. With VMware Server you can create and run guest operating systems ("virtual machines") such as Linux, Windows, FreeBSD, etc. under a host operating system. This has the benefit that you can run multiple operating systems on the same hardware which saves a lot of money, and you can move virtual machines from one VMware Server to the next one (or to a system that has the VMware Player which is also free). In this article we use Ubuntu 6.06 LTS (Dapper Drake) as the host operating system.

I want to say first that this is not the only way of setting up such a system. There are many ways of achieving this goal but this is the way I take. I do not issue any guarantee that this will work for you!
RedHat

My First Linux Server, Part 1

Post date: April 14, 2005, 22:04 Category: Miscellaneous Views: 5315 Comments
Tutorial quote: Many small businesses are turning to Linux as way to swim against the tide of rising software costs. Are you thinking about diving into Linux for your small business? From the outside, Linux can appear to be a deep ocean of strange jargon in unchartered waters. Who has the time to wade through all that to save a few clams? With Linux, it's not a sink or swim proposition.

Linux is now a lot simpler than you may think. We can provide you with the easiest, simplest, no-problem process for installing Linux on a PC. After going through this simple installation process, you will have a basic machine that you can configure into any kind of server, workstation, or office desktop. Future articles in this My First Linux Server series will help you build productive, Linux-based servers and small office workstations.

The best choices for your first Linux machine are probably the popular Red Hat Linux or SUSE Linux, primarily because both are easy to install and configure. Additionally, these companies are sound choices for the home office or small business. Both vendors have specialized in Linux for many years and offer full corporate product lines supporting your expansion.
Debian

How To Install VMware Server On Debian Sarge

Post date: November 1, 2006, 18:11 Category: Installing Views: 3693 Comments
Tutorial quote: This tutorial provides step-by-step instructions on how to install the free VMware Server (version 1.0.1) on a Debian Sarge system. With VMware Server you can create and run guest operating systems (virtual machines) such as Linux, Windows, FreeBSD, etc. under a host operating system. In this article we use Debian Sarge (3.1) as the host operating system.
Linux

Monitoring and Managing Linux Software RAID

Post date: April 15, 2005, 23:04 Category: System Views: 3515 Comments
Tutorial quote: Systems administrators managing a data center face numerous challenges to achieve required availability and uptime. Two of the main challenges are shrinking budgets (for hardware, software, and staffing) and short deadlines in which to deliver solutions. The Linux community has developed kernel support for software RAID (Redundant Array of Inexpensive Disks) to help meet those challenges. Software RAID, properly implemented, can eliminate system downtime caused by disk drive errors. The source code to the Linux kernel, the RAID modules, and the raidtools package are available at minimal cost under the GNU Public License. The interface is well documented and comprehensible to a moderately experienced Linux systems administrator.

In this article, I'll provide an overview of the software RAID implementation in the Linux 2.4.X kernel. I will describe the creation and activation of software RAID devices as well as the management of active RAID devices. Finally, I will discuss some procedures for recovering from a failed disk unit.
Linux

Using XenExpress To Virtualize Your Server

Post date: January 18, 2007, 19:01 Category: System Views: 4612 Comments
Tutorial quote: This guide covers the installation of XenExpress and the creation of virtual machines with the XenServer Administrator Console. XenExpress is the free virtualization platform from XenSource, the company behind the well known Xen virtualization engine. XenExpress makes it easy to create, run and manage Xen virtual machines with the XenServer Administrator Console. XenExpress can run up to 4 virtual machines at the same time with a max. total amount of 4GB RAM. The XenExpress installation CD contains a full Linux distribution which is customized to run XenExpress.
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