Wednesday, July 2, 2008

LINUX TUTORIAL FOR YOU






Step-by-Step Guide & Tutorial Pages

Have an old system gathering dust? Convert it into a Linux server! It's easy to do. Just follow along with our guide pages and we'll walk you through installing the Debian Linux OS and setting up a network with the most common types of Internet and LAN servers. You'll learn some things about operating systems, networking, and the Internet in the process, and you may just have some fun along the way. Even if you have never worked with Linux before, you'll be able to use our guide pages to go from zero to "sysadmin" in no time, as well as get a solid start in the knowledge needed for the Linux+ certification.



Why Not Red Hat ?

Red Hat is in a tough spot. Most of their revenue streams are based on sales, support, and training while the open nature of Linux has resulted in thousands of freely-available Linux resources on the Web. Their survival depends on having a product that is proprietary enough to make you dependent upon them for upgrades and support. And now that they are a publically-held company they are under pressure to meet the expectations of Wall Street analysts for revenue growth and cash flows every quarter. (Did you think it was just a coincidence that they churned out new versions at an average of two a year?) In time, Red Hat's dominance will likely kill off smaller commercial distributions like Mandrake and TurboLinux and dealing with Red Hat will be no different than dealing with Microsoft.


Why Debian ?

Debian is the world's leading non-commercial totally free Linux distribution. Remaining loyal to the concept upon which Linux was created, it is produced by hundreds of volunteer developers around the world. Contrary to a common misconception, Debian is not for Linux gurus only. As a matter of fact, as you will see on the guide pages, its advanced package management system makes it one of the easier distributions for new Linux users to work with. Here are just a few of its


Advantages:

Non-Proprietary: Debian is a true GNU/Linux distribution using the standard UNIX style commands. This ensures that what you learn today won't be obsolete in two years and makes it easier to also learn how to work with UNIX systems.

Easy Maintenance: A seamless, totally-integrated package management system makes it easy to keep your system up to date and free of orphan files and incompatible products. Most dependent packages are handled automatically so you don't get the "Failed dependencies" error commonly encountered when trying to add software on RPM-based systems like Red Hat and Suse.

Automated Patching: The Debian package system also allows you to use a single command to update your entire system (operating system and installed packages) over the Internet. This allows you to use a scheduler to routinely run a shell script to automatically update your system with the latest program, OS, and security patches.

Extensive: Only free software packages (applications, utilities, etc.) are allowed to be included in the official Debian distributions, and the current binary distribution comes on 21 CDs or 3 DVDs because there are over 18,000 of them. With Debian, you don't have different "server" and "workstation" or "personal" editions. It's everything all in one.

Support Options: Peer support is available through a community of listservs (mailing lists) and chat rooms. Replies to messages may even be from those who helped develop the product. And since you're likely not the first person to encounter a given issue, there are also searchable archives of listserv messages. If your company requires commercial support contracts fear not. Numerous for-profit support operations offer a variety of technical support options. With Debian, you don't have to worry about forced upgrades due to vendors dropping support for older versions.

Minimal Investment: Debian's peformance is excellent even with the modest hardware requirements Linux is famous for. While most OSs require newer, faster, bigger hardware, Debian allows you to utilize those old Pentium systems instead of throwing them into a landfill. This, along with the fact that you can load a single copy of Debian on as many systems as you want, means you can set up a full-blown enterprise at very little cost.

Reliable: Debian's focus on stability and reliability results in servers that you may have to reboot once a year, rather than once a month.
User-centric: New versions of Debian are developed when major changes warrant one, not to generate revenues from upgrades. (You need only look at the version numbers of the various distributions to verify this.) Debian disc images are available for download from www.debian.org. If you download the images, be sure to download the current "stable" release (get the "i386" set for an Intel PC system). However, downloading and burning 23 CDs or 3 DVDs takes some time and effort. You can also purchase ready-made DVD sets from Web vendors for around $20 with CD sets costing a little more.

Why Not Debian ?

If you're the type who likes to base your operations on the bleeding edge, Debian isn't for you. Debian's focus on providing a stable, reliable operating system across all platforms means it will never be "first to market" with new bells and whistles. They are incorporated into new releases once the bugs have been discovered and worked out.

SOME FLAVOURS OF LINUX






What is Ubuntu?

Ubuntu is a community developed operating system that is perfect for laptops,desktops and servers. Whether you use it at home, at school or at work Ubuntu contains all the applications you'll ever need, from word processing and email applications, to web server software and programming tools.
Ubuntu is and always will be free of charge. You do not pay any licensing fees. You can download, use and share Ubuntu with your friends, family, school or business for absolutely nothing.
We issue a new desktop and server release every six months. That means you'll always have the the latest and greatest applications that the open source world has to offer.
Ubuntu is designed with security in mind. You get free security updates for at least 18 months on the desktop and server. With the Long Term Support (LTS) version you get three years support on the desktop, and five years on the server. There is no extra fee for the LTS version, we make our very best work available to everyone on the same free terms. Upgrades to new versions of Ubuntu are and always will be free of charge.
Everything you need on one CD, which provides a complete working environment. Additional software is available online.
The graphical installer enables you to get up and running quickly and easily. A standard installation should take less than 25 minutes.
Once installed your system is immediately ready-to-use. On the desktops you have a full set of productivity, internet, drawing and graphics applications, and games.

What does Ubuntu mean?
Ubuntu is an African word meaning 'Humanity to others', or 'I am what I am because of who we all are'. The Ubuntu distribution brings the spirit of Ubuntu to the software world

Ubuntu Server Edition

The Server Edition - built on the solid foundation of Debian which is known for its robust server installations — has a strong heritage for reliable performance and predictable evolution.
Integrated and secure platform
As your business grows, so does your network. More applications need to be deployed and more servers are required. Ubuntu Server Edition offers support for several common configurations, and simplifies common Linux server deployment processes. It provides a well-integrated platform enabling you to quickly and easily deploy a new server with any of the standard internet services: mail, web, DNS, file serving or database management.
A key lesson from its Debian heritage is that of security by default. The Ubuntu Server has no open ports after the installation and contains only the essential software needed to build a secure server.
Lower Total cost of ownership with automatic LAMP installation
In around 15 minutes, the time it takes to install Ubuntu Server Edition, you can have a LAMP (Linux, Apache, MySQL and PHP) server up and ready to go. This feature, exclusive to Ubuntu Server Edition, is available at the time of installation.
The LAMP option means you don't have to install and integrate each of the four separate LAMP components, a process which can take hours and requires someone who is skilled in the installation and configuration of the individual applications. Instead, you get increased security, reduced time-to-install, and reduced risk of misconfiguration, all of which results in a lower cost of ownership.
Eliminate the cost of updating individual workstations
Ubuntu Server edition includes thin client support using LTSP (Linux Terminal Server Project). LTSP-5, the latest release, offers a simple installation and easy maintenance. All the data is stored on the server, which will substantially diminish the cost of updating individual workstations and help to ensure their security. Notable benefits of Ubuntu's thin client support are:
Simplified management: manage all clients from one system. Install new software, change their configuration, or even upgrade to a new version on the server, and all clients are instantly up to date. There is only one backup to take for all clients.
Fully automatic installation and setup: installing a thin client server is as easy as installing a single desktop system, and once it's finished, new clients can be added with no additional administration on the server
Lower TCO through shared resources: Common high-powered desktop workstations sit idle most of the day consuming power and costing your organization money. With a high-powered server and low-cost thin clients, you can get great performance and save money. Need higher performance? Just upgrade the server, and all clients instantly benefit.
Quick failure recovery: If a client system fails, simply swap in a new one and continue working. No configuration is required, and all of the user's data and settings are intact.
Locally attached devices: Users can access printers, cameras, iPods, USB sticks and other devices connected directly to the thin client.


KUBUNTU

KUBUNTU is an official derivative of Ubuntu using the KDE environment instead of GNOME. It is part of the Ubuntu project and uses the same underlying system. It is an exciting distribution that showcases the full potential of the KDE desktop. Kubuntu shares the same repositories as Ubuntu, and relies on the same underlying architecture.

The K Desktop Environment

A powerful graphical desktop environment, combines the ease of use, contemporary functionality, and outstanding graphical design with the technological superiority of the Kubuntu operating system. KDE version 3.5.5 is the current stable release and Kubuntu 6.10 is the first distribution to include it.


Photo Management

Digikam is now included by default. This advanced digital photo management application provides you with the tools necessary to view, manage, edit, enhance, organise, tag and share photographs. Organising both photos and photo albums is a snap with Digikam as it allows you to sort chronologically, by directory layout, or by custom collections.
Power Management
Kubuntu received a new power management overhaul with the latest release. Guidance, the power management system, allows users to select various functions to control the power of their portable computing system, whether it is controlling the brightness of the display during low battery, locking the system upon closing the lid or controlling access to multiple batteries.

Easy Networking and Printer Sharing
Zeroconf and print sharing let you browse the local network for available services. Both are now simple to setup and maintain requiring nothing more than ticking a box to enable the feature.
Accessibility Profiles
Kubuntu now offers users the ability to use a preconfigured accessibility profile depending on the type of disability right from the initial point of setup. This provides users the accessibility features they need in order to not only install the Kubuntu 6.10 operating system but to use the system on a daily basis for all of their computing needs. Press F5 at the CD boot screen to choose a profile.