Linux Community Magazine

Linux operating system is an outstanding example of free and open source software. Linux kernel is the main component of the Linux operating system which is quite similar to Unix. Like most of the operating system kernels, it acts a bridge between the hardware and applications. It's main job is to manage the system resources. Application software could access the hardware through the system call and inter process communication provided by the Linux kernel.

Brief History

Linus Torvalds, a computer engineer from Finland, took up the job of developing Linux kernel in April,1991. He employed a terminal driver and a task switcher in Intel x86 assembly language. Version 0.01 of Linux with 10,239 lines of code was released on in September,1991. In the next month, version 0.02 was launched,which was followed by the release of version 0.11 in December,1991. Linux version 0.95 was introduced in the market in March,1992. In this version X Window System was incorporated for the first time. After that several versions were released in the market. Linux 3.0 is the latest version which was launched on 21st July,2011.

Linux Kernel Features

Preemptive multitasking in kernel mode and user mode is supported by Linux Kernel. Apart from that it supports multi-threading,virtual memory,internet protocol suite,standard libraries,dynamic memory management,etc.

Architecture Of Linux Kernel

Linux kernel is of monolithic type. It provides virtual machine interfaces to the user applications. The application writing process does not require any knowledge of hardware. Additionally, multitasking is also supported by Linux kernel, which is able to run multiple tasks concurrently. The Linux kernel consists of 5 sub systems,namely Process scheduler,Memory Manager,Virtual File System,Network Interface and Inter process communication.

Process Scheduler

Process access to the CPU is controlled by Process Scheduler. The mechanism adopted by it ensures that all scheduled processes get fair share of processor time. While executing the processes, the kernel also performs the hardware tasks. Setting up and configuration of Process scheduler are critical processes which should be done in consultation with a network support provider.

Memory Manager

Multiple processes are allowed to share the system's memory securely by Memory Manager. Virtual memory is also supported by it, so that the processes could use more memory than what is available in the system. Unused memory is used for file system storage. Memory configuration is a critical task, which should be performed with the help of a PC support provider.

Virtual File System

It provides a common file interface to all hardware devices. Apart from that, the Virtual File System supports numerous file system formats, which are used by other operating systems.

Network Interface

Secure access to various networking hardware devices is provided by the Network Interface. The networking hardware devices should be installed by a Network Support provider.

Inter Process Communication

This sub system is responsible for providing mechanisms for process to process communications on an individual Linux system.

Computer Support For Linux Kernel

Setting up a Linux system including the kernel requires expertise, which could be provided by an experienced network support provider. Process scheduling, memory and network interface management are also critical tasks,which should be done under the guidance of a Computer Support provider. Since Linux kernel is an open source software, the user could modify it according to the requirement, but that should be performed with the help of a network support provider.

Linux is one of the most common platforms that any web hosting companies can choose to perform their businesses, the other one being windows. Software engineers over the world swear by Linux system being better than windows. It is also cheaper than its counterpart. Therefore, linux has been a popular choice among web users over the ages. Redhat is the software company that specialises in production of linux servers.Linux was the first distribution to use RPM package manager as its packaging format and over time has also served various other distributions.Red Hat Company has been doing a lot in Linux and is the first ones to introduce new features in the server. They were the first ones to introduce graphical installer 'anaconda' in linux so that it could be used by the new users as well as other distributions. They were the first ones to introduce Lokkit also that helps to configure firewall capabilities in linux.Since then they have been developing various versions with i mproved features of Linux. They added features like glibc 2.1,egcs - 1.2, and Kudzu in their version 6. Versoin 7 updated glibc to version 2.1.92, and used a patched version of GCC and CVS. Version 8 enabled UTF-8 character that brought internationalisation in Linux. Version 9 supported native POSIX thread library which is a distinctive character of 2.4 series kernel.Linux still lacked many features like MP3 support due to copyright and patent problems. It was now time to develop a better version of Linux. Therefore, RedHat joined hands with Fedora to come out with a better version and they named it Red Hat Enterprise linux. The new version overcame all the limitations of RedHat Linux and is free to download. After the development of Enterprise linux the use and production of Linux has completely stopped in the market. Red Hat Linux or its enterprise version is one of the best linux systems available in the market today.

If you have started to use Linux, you will notice that there are thousands of options for everything. This means that there are many different distributions that you can use with a variety of applications, interfaces, and functions. You might like the distribution that you are using, but might want to make the switch to another version that you could like better. How can you make this switch?

Before erasing what you have and starting over, you need to start out rationally and test things. If your new distribution has a different interface like switching from KDE to Gnome, consider installing the new interface on the distribution that you are currently using. This will let you get used to it to see if you like it.

Another strategy is to use a virtual machine or a live CD. This will let you get used to the new distribution. Try using it for a week or two to find out if you really like it or not.

If you are going to make the switch, you will need to back up a few things. The most important files that you need to have is your home folder. Many make a mistake of just backing up the folders that are showing. What you really need are the hidden folders since these have all your settings. If you are using similar applications between distributions, your settings will still be there so the program functions just like you had it.

You will also need to at least backup the programs that you are using. Your new distribution will replace many of these, but if there are any specific programs and applications that you need, get these backed up.

Once you install your new system, drag and drop your home folder with it's hidden folders as well and your system should work just like you need it to.

Unix Directory

This article describes how to utilize the microsoft active directory in a linux environment active directory is a microsoft windows server technology that provides a variety. Linux ldap tutorial: deploying openldap - ldap directory installation hi friends, in our production system under unix, the usr/sap/ has become full, under which we have below directories, :adm 72> usr/sap/. Unix directory unix directory structure at login, you are in your home directory this is your current working directory all files and directories below your home. Directory (file systems) - wikipedia, the free encyclopedia despite that, i was surprised to see that the word "linux" appears on 24 of pages in the sparc product directory that's more than i thought but probably 4x less often than in. Linux online - directory organization in the real base directory acronym definition usr: u s robotics: usr: upper saddle river (new jersey) usr: urban search and rescue: usr: unix system resources: usr: uni t status report: usr: universities.

Active directory in linux linux mail server setup and howto guide the linux directory structure how is the linux file system organized where are all the files in linux what do all the weird directories contain a tour through the linux file. Unix directory structure - encyclopedia article - citizendium 4 linux directory hierarchy: oriented to the software parts by now, all discussion are os independent on linux, the four software parts theory is expressed in his directory. Directories - linux introduction we are creating the world's most trusted encyclopedia and knowledge base once you join us and log in, you'll be able to edit this page instantly. Linux directory hierarchy: oriented to the software parts important to solving many problems in linux is understanding where files are located in the directory structure there is, however, no absolute or perfect directory.

Unix directory structure search results. Unix directory structure - what does usr stand for acronyms and ldap configuration on ubuntu linux, redhat linux or fedora core tutorial includes ldif examples and configuration file examples to set-up an ldap server quickly yolinux.com. Unix directory tree linus link directory: suse linux, red hat linux, ubuntu linux and more convert pcs to linux thin clients with 2x thinclientserver links to the best linux sites all over the. Linux's directory structure unix directory- unix help visit dev shed to discuss unix directory discuss unix directory in the unix help forum on dev shed unix directory unix help forum discussing the. Linux directory trees linux journal list of linux howto documents and other sources of help 9 directory organization in the real base directory why should there be any special organization in the real base.

Linux in the yahoo directory in modern times in unix-like systems, especially linux, directory structure is defined by the filesystem hierarchy standard in many operating systems, programs have an associated. Linux publications list on storagesearch.com find sites with linux news, downloads, documentation, guides, analysis, forums, articles, and more for the open source operating system. Filesystem hierarchy standard - wikipedia, the free encyclopedia unix directory tree like any computer, unix arranges files/directories in an inverted tree topology the root directory, shown at the top, is written. Live search: unix directory unix realm - portal of unix related information mainly for system administrators unix days are over -. Google directory - computers > software > operating systems > unix linuxwaves.com - your linux portal site with free linux email, chat, books, for beginners and experts.

Usually Windows Web Hosting described as the most famous earlier framework and the most primary level web hosting service because everyone is well familiar with its environment. It all started with a small static Website in HTML with a few photos and a simple scripting language. The site gives users to gain access, even it allows a good interaction with the site and some online stores of goods and services. It was previous or you can say earliest idea of the Windows hosting.

With the coming of multimedia applications, and concrete way for the public on the Internet in the world. Web hosting companies listed in the evolutionary process, to make room for freedom and web hosting business increased unimaginably. Even it is as simple as it never before and in present situation it is the best online business. Aside from technological progress, today many hosting companies are also include the environmental-friendly existence and many of them offering different types of the hosting packages which are easily available on their site.

Windows Hosting has been greatest demand in market, but all the costs to the hosting is bit more than other forms of hosting. However, the Windows operating system has an important role in the practicability and quality of web hosting services. Those companies who have the windows operating system, usually prefers Windows web-hosting plan.

Even so, in the web hosting world the second most important hosting feature is Linux web hosting. It is as much strong and reliable as Windows network and also it is an open source operating system so user get the high quality hosting with low cost. It is difficult to compare the difference between the Windows operating system, and other operating system, but you can feel more user friendly environment with Windows hosting.

The Linux-based web servers are great for PHP and MySQL features. To carry out all coded PHP web site you can find it is compatible with Windows systems as well but it is certainly requires the Linux support for the sophisticated operation of this act. The tags and codes used in it are quiet similar to HTML, but user can includes applications and scripting on the server side as well. In addition, these dynamic pages that store data, and changes to restore the data in this table might be useful.

It depends on your skill and comfort with the operating system. Many web designer and programmers have different requirements depending on their areas of expertise. If they are familiar with Linux-based web hosting, because of their experience and expertise in Linux-based operating system they will surly choose Linux hosting. In addition, the expert in ASP, ASP.NET will choose Windows Web Hosting because it is compatible with IIS. With Windows Web Hosting you can experience greater freedom relative to your Website. It offers many ways to develop your web pages to upload on your site. These web pages you can send through FTP, as well as the costs are very low cost.