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So what is Server Virtualization anyway? That’s a good question. Virtualization is the act of using virtual servers or software, to reduce the amount of physical servers needed to power an organization’s IT infrastructure. With that said, virtualization cuts costs by reducing energy consumption and server room cooling expenses. This article, originally written by Matt Peterson, will explain Application Virtualization and Server Virtualization in full detail. More:
There is a lot of buzz going around about Virtualization. What is Virtualization, and what benefits does it provide? In this article we will take a look at the technology to see how it can provide a great deal of flexibility and cost effectiveness for IT professionals and software developers.
Virtualization technology allows multiple virtual machines to run on a single host computer. These virtual machines can run different operating systems, such as Windows, Linux and UNIX. Each virtual machine has its own set of virtual hardware resources (e.g., CPU, RAM, Hard Drive, etc) allowing the operating system to run as if it were installed on a physical machine.
The benefits of Virtualization technology are far reaching. Many organizations have moved to the virtual machine solution to consolidate multiple servers, running side by side on a single physical machine. Server consolidation allows IT professionals to fully utilize server resources, while isolating virtual machines and allowing them to run different operating systems and applications. Software developers utilize virtual machine technology to quickly test applications on different operating systems, without the hassle of setting up multiple physical machines for testing or taking the risk of causing problems by testing in a production environment.
You can run Virtualization software on pretty much any platform. Once the software is installed it is simple to create virtual machine instances. Virtual machines are just a set of files located on the host machine. You configure your virtual machine settings on the host computer, install the operating system and you are ready to go. It is a very common practice to use a master image of a virtual machine. This master image can be a fully configured machine, with the operating system and all required applications installed. You can then rapidly deploy virtual machines by copying the master image to multiple Virtualization hosts to provide zero downtime and 100% server availability.
There are a number of Virtualization products available. VMWare, which is probably the most popular, recently announced that it will be releasing a free version of its GSX Server product. This will allow any organization to host virtual machines on either Windows or Linux hosts. Other Virtualization products include Microsoft’s Virtual Server and SWsoft’s Virtuozzo, just to name a few.
Matt Peterson is a Senior Consultant for N2 Network Solutions, a leader in Arizona IT Support, providing IT Outsourcing and VMWare Consulting: n2networksolutions.com
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Tags: information technology
Posted in SQL Server · December 16th, 2009 · Comments (0)
Torrentflux-b4rt is great software program to turn a old server you have laying around into a torrent server. Torrentflux-b4rt is like other torrent programs you may have used in the past, but this program is meant for linux and can be accessed using a ip address.
Since torrentflux-b4rt runs as a web gui, the best thing about torrentflux-b4rt is that it can be accessed from other pc’s on your lan and while you are on the road away from home. The following directions will show you how to install torrentflux-b4rt on Ubuntu 9.04, but can be used for other linux distributions with minor changes. The first thing that you are going to want to do is log in under su.
su
After you log in under su, you now are going to have to install a basic lamp system on your linux pc. A lamp system consists of apache2 and mysql, which will allow you to access your torrentflux-b4rt from a web page.
apt-get install apache2 php5-mysql libapache2-mod-php5 mysql-server bzip2
After you have installed the lamp system, we can begin to download and extract the torrentflux-b4rt program.
cd /var/www
wget http://gunblade.fakap.net/doc/torrentflux-b4rt_1.0-beta2.tar.bz2
tar -xjvf torrentflux-b4rt_1.0-beta2.tar.bz2
This command will change the torrentflux-b4rt name into a more easier one to remember.
mv torrentflux-b4rt_1.0-beta2 torrentflux
We also need to install a few more software programs.
apt-get install zip unzip unrar php5-cli php5-gd phpmyadmin transmission-cli libdigest-sha1-perl libxml-dom-perl libxml-simple-perl libthreads-shared-perl libhtml-parser-perl
Next after you have installed the above software, point your web browser towards http://IP/torrentflux/html/setup.php to begin setting up torrentflux-b4rt.
Once the torrentflux-br4t install window opens, you will then need to select MySQL for your database type, then point another browser window towards http://IP/phpmyadmin and login under root using your mysql password you set earlier, so that you can create a new user for your torrentflux account. Once phpmyadmin opens up, you will need to click on priviledges. After you click on priviledges, you will then need to select add a new user.
All you have to do is fill in the boxes on the top of the screen and hit the check all button under global priviledges. Make sure you remember the username and password, since this will be your login information for torrentflux-b4rt. After yoou have filled in the above forms, click on the go button. You have now created yourself a user name and password for your torrentflux-b4rt account.
Once you have created yourself a username, go back to the http://IP/torrentflux/html/setup.php page and fill in the information for your MySQL database. All you have to do to is fill in the forms, with the user account information you created on the http://IP/phpmyadmin page.
After you have created the new database, you now need to set the privileges to 777. There are a few ways to chmod these files. One way is to use webmin, which is displayed below. Or you can also chmod the files under the command window.
chmod 777 /var/www/torrentflux/html/inc/config/
chmod-777-torrentflux
After you have completed the install you will notice there are a few packages that are not installed, but you torrentflux-b4rt torrent server will work alright without the other packages.
The last thing that you have to do in order to access your torrentflux-b4rt account is to delete /var/www/torrentflux/html/setup.php.
rm /var/www/torrentflux/html/setup.php
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Tags: torrent
Posted in SQL Server · December 16th, 2009 · Comments (0)