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Monthly Archives: March 2012

Linux Training and Certification

With the proper knowledge of Linux you can get a bright future. Like all other languages (Java, C++, net and PHP) Linux is also very profitable. The founder of this language is Linus Torvalds. You can get the source code (Kernel) of this language free of cost at the Internet. Everyone has a freedom to develop it in a unique why, download and starts creative work on it. Many companies have showed their artistic work on it and have released their own version recently. With the participation of many developers, it is becoming the exceptional operating system.

Most of the corporate houses prefer the Linux operating system, because it has some incomparable features and user friendly. This is the preferable operating system for multitasking and has fast operating speed when performing more than one task. This gives the most stable operation in rebooting and crashing. Other OS has problems with giving the continuous performance and have to reboot in order to ensure the efficiency; Linux is free from all these problems.

Many people are involved in the development of Linux, if any new bug is introduced then they will get the solution of this in no time. They make its security system, rock solid, no virus or worm can sneak into this system. Linux has introduced many of versions; Red Hat Linux is the exceptional. In order to understand and operate this system you must have a proper knowledge about it. Red Hat Certification is the one that can give you the knowledge you want to perform the every kind of action in Linux. To insure the user’s expertise they have launched the Red Hat Training and Examinations. In this training you can learn the System Administration, Security and Networking Administration. Red Hat offering three different certifications, Red Hat Certified Technician, Red Hat Certified Engineer and Red Hat Certified Architect.

Red Hat Certified Technician certification is for the beginners, provides the complete understanding on the entire Linux operating system. At this level student will get the proper knowledge of file system administration, management, network configuration and basic system troubleshooting.

Red Hat Certified Engineer is the level where the student will get proper troubleshooting and management techniques. In this level one can get a proper insight into the kernel configuration, network configuration.

Red Hat Certified Architect is the most difficult level and because of that only 1000 RHCE certified people are their in the whole world.

For getting all this education you need to choose an authenticated institution. There are numbers of good institution which are providing their best in the field of Red Hat Linux. Many systems from the different parts of the countries have earned their name for providing good quality products.They are providing case study analysis, which is vital in understanding every aspect of this system.

Their practical approaches are making it distinguish from other systems. For a good institution it is essential to provide their student a support, consulting services and Linux based mail server. The Linux Based Mail Server services are the most important while handling Corporate Company.

How to Set Up a Linux Web Server

So you want to host your own website from your own home or maybe your office. This tutorial will show you how to set up a basic web server using Linux. For this tutorial I have used Linux Mint 9 but the steps work the same on any recent Linux distribution.

OK first thing to do is give your server a static IP address on your network. Once you have set the static IP address you need to download and install the software you will need. Open up a terminal and install the following packages:

apache2 php5-mysql libapache2-mod-php5 mysql-server

During the install process MySQL will ask you for a root password. Make this something complex but do not forget it!!! Once installed open up a web browser and type the server address into the address bar (e.g 192.168.1.3) and you will see the message IT WORKS! This means that you have a working web server. Now it is time to add some content to your server. All apache servers store their web data at /var/www but as default you can not write to this folder. Open up a terminal and type:

sudo nautilus

Enter your password when prompted. Navigate to /var and right click on www. Then go to properties. Add yourself as either the owner or group and give yourself “create and delete files folder access”.

Next thing to do is to download some ftp software. Personally I recommend Filezilla. Open up a terminal and type:

sudo apt-get install filezilla

Once installed connect to your existing web server and transfer your files into /var/www.

Congratulations!! Your website is now hosted on your new server but it will not yet be visible from the internet. Most networks sit behind a router which acts as a firewall, so to make your website visible you will need to forward http packets from your router to your server by opening up port 80 and redirecting it to your servers new IP address. Port Forward.com is a good starting point to understand port forwarding.

You will also need to speak to your ISP about getting a static IP address for your router. Without this you will not be able to access your site every time your IP address changes.

And that is it!! You now have a basic web server from which to host your own website.

How to Install a Ubuntu Linux Background Theme

Ubuntu is the most popular distribution of Linux with more than 12 million desktop users around the world. It is also the most popular free operating system for personal computers and is based on the Debian Linux distribution. The first release of the Ubuntu Operating System was on 20 October 2004 and since then new versions of Ubuntu have been released almost every six months. Ubuntu is sponsored by the UK based company Canonical Ltd. owned by South African billionaire Mark Shuttleworth. Ubuntu is distributed as a free and open source operating system and the latest Ubuntu release was Natty Narwhal which was released on 28th of April, 2010. The latest released focused on making the interface quite easy for users of the Windows Operating System too and it has gained mixed yet overwhelming reactions throughout the globe. One of the problems with Ubuntu Linux is that the backgrounds inbuilt into the Operating System are not that great and there are not many great backgrounds available either. So, in this tutorial we will provide details on how to install great background themes on your Ubuntu Linux operating system where the wallpapers change at regular intervals.

You can at first download the backgrounds from any Gnome Art background site. Ubuntu Themes are also regularly released at UbuntuTheme.net with high quality backgrounds and you can also download it from there. The themes work without any major modification to the Ubuntu Linux system and are safe to be installed. The themes would work on any Linux distribution which supports Gnome Art backgrounds in addition to Ubuntu OS.

At first download the Ubuntu Theme to your computer and decompress it in your Ubuntu OS. You would then need to move the theme to folder to the /usr/share/backgrounds in your Ubuntu/Linux system. But for that you also require root privileges and so open the terminal and type:

sudo cp -R /home/YOURUSERNAME/PathToYourThemeFolder /usr/share/backgrounds

Replace YOURUSERNAME and PathToYourThemeFolder with the ones that are relevant to Ubuntu installation on your system. If case you are not sure about the location of the folder then you can also right-click and check properties to get an idea about the same. When you transfer the theme you would be prompted for the administrative password and you can type it and press enter. Thereafter, you need to browse to the /usr/share/backgrounds folder where you should see the new theme folder present if you have transferred it correctly. If you see cross mark on the images or the folder and permission is denied then please type the following command on your terminal:

sudo chmod 777 -R /usr/share/backgrounds/ThemeFolder

Replace ThemeFolder with the name of the extracted theme folder name as you did previously.

Now go to System > Preferences > Appearance and click on Appearance to open the Appearance dialog box. You can also open Appearance Preference by right-clicking on the desktop screen of Ubuntu and selecting “Change Desktop Background” from the right-click menu. You would then require to select the Background tab in that box if it is not selected already. Now click on “Add” near the bottom right side of that tab to add the new theme. A new window named “Add Wallpaper” would pop up where you need to browse to the “/usr/share/backgrounds/ThemeFolder/” and select the themefile.xml inside the ThemeFolder. You might need to change the file type at the bottom right of the “Add Wallpaper” window from “images” to “all files” in order to view the xml file.Replace ThemeFolder and themefile.xml name with the actual theme folder name and theme file name. You should now see the new background and then on your computer and it will change every 15 minutes. The installation is complete and once you get the hang of it, you should be able to install new Ubuntu themes in less than a minute.

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