What Is Linux?

To understand about Linux web hosting, you need to understand what is Linux? In simple words, Linux is an operating system just like Windows 98, Windows XP or Windows Vista. You can do your daily computer task by installing Linux on your system.

History

Linux is a Unix like operating system. Linux was developed by Linus Torvalds in 1991. Torvald wanted to make a non-commercial replacement of Minix. Eventually, he came up with Linux kernel. A kernel is a core part of Linux operating system.

Free Source Code

Linux source code is freely available to everyone. Those who have slight idea about Linux always misunderstand things. Linux itself may not be free. The source code is free if you purchase any Linux distribution like RedHat or Ubuntu. Linux might cost you but you will get a source code free with Linux distribution. You are free to edit that source code as long as you follow the guidelines under GNU’s General Public License.

What You Will Get With Linux Web Hosting?

Now you know what Linux is. You need to understand what you will get with Linux hosting and how Linux hosting works.

LAMP software bundle is used in any company providing Linux web hosting. LAMP stands for Linux-Apache-MySQL-PHP/Perl/Python

Linux, you know, is an operating system. Apache is a web server. Like Linux, Apache is also an open source project. Apache is widely used web server. It’s not that Apache only runs on Linux. For Windows also, Apache is available. For serving HTML pages, web server is needed. Most Linux shared hosting uses Apache to server pages.

MySQL is a database. MySQL provides multi users access to many databases. For implementing an advance application, you need database access.

PHP/Perl/Python are programming language used for making very advance web application. Most of Linux web hosting supports PHP. Perl and Python are not supported by all web hosting providers. Only few web hosting providers support Perl and Python language.

Windows Hosting Vs Linux Hosting

When you want to host your web site, you might be confused about whether to choose Windows hosting or Linux hosting. There is not a major difference between Windows hosting and Linux hosting.

Windows is a property of Microsoft. If you are going to use any Microsoft applications like ASP.Net, Visual C++ or Frontpage, then it’s advisable that you use Windows hosting.

From performance point of view there is not much difference between Windows and Linux hosting. Linux systems are more stable and less vulnerable to security breach. So with Linux hosting, you can expect more up time. Linux system runs for long time without rebooting. Windows need frequent rebooting after upgrade.

Major difference comes in price. Linux hosting is cheaper than Windows hosting. So if you are looking for cheap and reliable web hosting with no special usage of any Microsoft application then you should choose Linux web hosting.

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Why go for an adequate security solution?

By opting for an adequate security solution for your company you can neutralize the effects of these threats. Often it is seen that network administrators prefer installing only one software package and in the process invest a lot of their time defending the integrity of the network. But then, you on your part have to indulge in huge investments for this job of theirs. Besides this job of theirs, network administrators have other responsibilities to execute as well. A significant part of their task is to focus on the effectiveness of their business. Another threat that often goes unnoticed is the threat that occurs because of the internal perimeter or more commonly an employee. It is often seen that users steal proprietary details, but then, by opting for an adequate network security solution you can keep off from these issues. Now, network administrators also play a viable role in this domain by coming up with security policies and enforcing them stringently.

Smart Strategies to Implement

To ensure maximum protection to your network, you need to adopt smart strategies like a layered security approach. This is certainly a customized approach that considers the specific requirements of your network and considers both software and hardware solutions. Your software and hardware need to be updated from time to time so as to make sure that they are in proper working condition. If needed, you may have to configure security software several times in a day and consider upgrading your hardware devices as well.

How to keep off from threats?

Today’s corporate network is prone to threats; as a result, you need to take up adequate measures to combat these threats. You need to go in or anti-spam, anti-spyware, malware and firewalls protection so as to combat the potential threats.

For establishing a user identity, you need to first establish yourself with the authentication procedure. Now for establishing the same, you need to have something more than a password and username, like smart cards and security tokens. This authentication process also helps your system keep off from threats. To conclude, it can be rightly termed that ease of application and management will help your system maintain a safe distance from threats.

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Mastering C++ is a book written by K. R. Venugopal, T Ravishankar and Rajkumar. The book teaches the computer language C++ from the scratch to the professional level in a very friendly approach to the learning of the otherwise very difficult language.

First published in 1997, the book is recommended by most of the programmers. Basically written with C programmers in mind, this book caters to novices as well.

My brother advised me to read this book as I was desperately trying to learn the language but was unable to do so. At the first sight of the book, I thought,” This book can’t help anyone. This is just another book for engineers and is full of technical jargon.”

Almost two years later I learned ‘C’ language from the book “Let Us C” by Yashwant Kanetkar.
That book helped me clear the basic concepts of programming and get some technical jargon of computers, giving me the break I needed.

I learned the concepts of OOPs from the reference books of NIIT. After that, I was ready to learn C++ in detail. I started from chapter-one which helped me get acquainted with thinking in terms of OOPs. And the following chapters till chapter nine taught me the basics of C++ (non-OOPs) and from 10 to 19 the OOPs side of the language. Chapter 20 was based on the management of software projects.

So after learning it, I decided to write some programs and got disappointed because I could write only console based programs, as standard C++ does not specify the platform independent GUI programming.

Though Mastering C++ is good for learning, to gain expertise in language one must not rely on this book alone. Specialized books in the field of data structures, network programming, games development etc should also be read and kept as reference.

But as far as the question of the language is concerned, this book can be trusted as it teaches the language and its constructs in details. To become expert in any field the base should be firm. And this book does the job.

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But for those unfamiliar with computer security, they are completely unaware of the risks they may be exposing their computer to.

Without implementing a proper computer security solution, your computer may become infected with viruses, spyware, and/or ad ware. These are all forms of mail ware than can play a part in rendering a computer unusable, destroy valuable information your storing, provide complete control of a computer to another person, allow someone to steal the information on your computer, record your keystrokes and give a 3rd party access to your online bank account, allow someone to use your computer to attack a computer belonging to somebody else, etc.

And if you opted for a wireless network, you could be sharing out your Internet connection to your neighbors or that person who has been sitting outside your house in the car for the last few hours. What is more, you are increasing the risk of exposing your own computer to hackers as a result.

So What Are The Basics of Computer Security:

Make sure that the link between you and the Internet is safe.You need to have a hardware firewall installed between you and the Internet. Most recent devices that connect you to the Internet have one built in, but in any case you need to make sure that what you have is a state full firewall.It should give your computer full access to the Internet, but block all traffic trying to access your network when originated from the Internet side.

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Development methods for traditional programming languages, such as C emerged in the 1980s. The results were not always as good as hoped for-many Computer-Aided Software Engineering(CASE) systems were little more than report generators that extracted designs after the implementation was complete-but the methods included good ideas that were occasionally used effectively in the construction of large systems.

The first object-oriented language is generally acknowledged to be Simula-67 developed in 1967. This language never had significant following, although it greatly influenced the developers of several of the later object-oriented languages. This movement became active with the widespread availability of Smalltalk in the early 1980s, followed by other object-oriented languages, such as Objective C, C++, and Eiffel. The actual usage of object-oriented languages was limited at first, but object orientation attracted a lot of attention.

There were some early attempts to unify concepts among methods. In 1996, the Object Management Group (OMG) issued a request for proposals for a standard approach to object-oriented modeling. The emergence of UML appears to be attractive to the general computing public because it consolidates the experiences of many authors.

UML was developed in an effort to simplify and consolidate the large number of object-oriented development methods that had emerged. The UML combines the commonly accepted concepts from many object-oriented methods, selecting a clear definition for each concept, as well as a notation and terminology. The UML is seamless from requirements to deployment. The same set of concepts and notation can be used in different stages of development. It is not necessary to translate from one stage to another. This seamlessness is critical for iterative, incremental development.

The UML is intended to model most application domains, including those involving systems that are large, complex, real-time or computation intensive. There may be specialized areas in which a special-purpose language is more useful, but UML is intended to be as good as or better than any other general-purpose modeling language for most application areas.

The UML is intended to be usable for systems implemented in various implementation languages and platforms, including programming languages, databases, 4GLs, and so on. The UML is a modeling language, not a description of a detailed development process. It is intended to be usable as the modeling language underlying most existing or new development processes, just as a general-purpose programming language can be used in many styles of programming. It is particularly intended to support the iterative, incremental style of development

1 Value in Brand: When you depend on the computer to do lot of your personal as well as business communications, it is of paramount importance that you invest in a good computer to do that. There are assembled sets available at a price lower than the quality branded computers. But in the long run they will make you incur more money on servicing and repairs due to the low quality parts used in them. Invest on a Good Brand for reliability and even if something goes wrong, the warranty will protect you from added expenditure.

2 Software: There is a tendency to rely upon counterfeit operating systems to save some money. This will prove as a wrong decision on the long run. Information technology being on a fast track, there are newer versions and updates to the existing versions released on a regular basis. Only genuine software is capable of updating them online. Further, there is no guarantee that the counterfeit will work without trouble. Imagine a situation when you have to reach an important client to close a deal but your computer crashes. Insist on OEM software.

3 Antivirus: Computer and Internet is regularly targeted by hackers to steal important data and details like username and password to use them for anti social activities. You can lose your money and credibility in that computer if your online bank account is compromised. Install the latest antivirus program on your computer and update them on a regular basis to stay ahead of the hackers and have peace of mind.

4 Power supply: As it is food for man, a computer to function at its best, require a continuous and steady supply of power. In case you area is prone for black-outs or power cuts valuable data can be lost when the power is lost abruptly while you are working on an important work. Therefore it is advisable to ensure a steady supply of power through a UPS (Uninterrupted Power Supply).

5 Qualified Personnel: The computer being a sensitive gadget, operations of them should be done by qualified personnel. The computer should be operated only by those who are aware of the basic functioning of the machine. Further, when there is a malfunction rather than fidgeting with the machine, it should be referred to the service personnel.

6 Regular Service: It is advisable to enter into an AMC (annual maintenance contract) with the supplier of the computer to ensure timely service and to avoid extra expenditure in way of repairing charges. Regular service will keep your computer in tip-top condition.

7 Beware of spam: One should be careful not to open spam emails which may contain viruses that will infect the computer. With the hackers also getting wiser day by day, any such email with “smart virus” in them can surpass the antivirus program installed. It will infect the system and important data will be lost.

A coaxial cable has two conductors, which allotment a individual accepted axis. A coaxial cable has a solid chestnut or chestnut argent aqueduct amidst by dielectric careful material. This dielectric is amidst by antithesis and/or complect careful which forms the alien conductor. This alien aqueduct aswell bouncer adjoin electromagnetic arrest (EMI) from alien babble sources. Some coaxial cables are articular with an “RG” designation. RG stands for “Radio Government”. The amount afterward is a blueprint identification. The amount amount is arbitrary.

High superior allure cable is acclimated for Top analogue TV (HDTV), Digital TV (SATV), Broadband, Cable TV (CATV), VSAT (very baby breach terminal, digital communications including broadband), TV Antenna, and Digital Master Antenna Television (SMATV). The three a lot of accepted allure cable types acclimated for these applications are RG59 (low grade), RG6 (medium grade), and RG11 (high grade). Coaxial cable for these applications has an impedance of 75 ohms.

]]> http://www.linuxabout.info/coaxial-cable-for-non-geeks-2/feed/ 0 http://www.linuxabout.info/using-external-hard-drives/ http://www.linuxabout.info/using-external-hard-drives/#comments Mon, 31 Oct 2011 05:28:14 +0000 Carol Teet http://www.linuxabout.info/?p=975 This drive is usually internal; however, altered requirements arising out of change of computer systems, new threats and alteration ambiance accept advance to the apparatus of alien harder drives. They are bargain acclimated as an added anamnesis in accession to the centralized harder drives. The alien harder drive is affiliated to the computer through a accelerated interface cable, usually with a bung and play interface. The interface cable allows the alien harder drive to acquaint with the computer to alteration the abstracts aback and forth. The a lot of accepted types of interfaces are USB and Fire Wire.

A carriageable or alien harder drive is absolutely a advantageous and has assorted advantages:

1. Safety from Internet Threats: It allows the user to aback up or abundance important advice which can be compromised by online or offline activities abroad from the capital centralized harder drive. Acute documents, ample music files, DVD images, movies, and even advancement of the capacity on capital centralized harder drive, can be kept cautiously on an alien harder drive.

2. Portability: It is carriageable and operates on a bung and play basis. Any computer with USB or Fire Wire adequacy can admit the alien harder drive as a accumulator device. The drive can be accessed like a accustomed centralized harder drive. It is simple to alteration huge files from one area to added or amid your desktop and laptop. All it needs is to bung in the interface cable to bound reconstruct a alive environment.

3. Security: If there are assorted users of your computer system, alien harder drive can accumulate all your important and acute abstracts safe. You alone charge to can bung in the alien drive and accomplish all your abstracts and programs available. If finished, artlessly unplug the drive and yield it with you or accumulate it in addition defended location.

In old drives, the alternating acceleration was low, so the overheating botheration did not exist. However, a lot of contempo harder disks, with a acceleration of 7200-10000 RPM, calefaction up during their work, and the temperature central rises up to 70 C and above. Of course, harder drives are now bogus with centralized temperature sensors, computers accept fans, coolers, and added accessories to anticipate overheating, and software utilities announce the temperature of your harder drive. Contemporary harder drive models are able to accomplish at 50-55 C, but we should point out that the harder drives are added acute to top temperatures than any added computer parts. The actuality that the harder drives backpack your adored abstracts is absolutely important, as able-bodied as its ultimate accident would be a adversity to you. There are abstracts accident situations if even the a lot of avant-garde abstracts accretion companies can’t agreement that you will accept you abstracts back.

Why is overheating analytical for a harder drive? The best way to accept how a harder deejay works is to yield a attending central the drive to see the centralized plan of anniversary allotment in affiliation to overheating.The platters backpack the data. They are fabricated from ablaze aluminum or optical bottle and ceramic, and are coated with a alluring layer. If the drive heats up, the platters expand, alteration their admeasurement and geometry. This destroys the alluring band on the apparent area the abstracts is stored, and creates defects and micro cracks.Physical accident of the apparent leads to the actualization of “bad” or cacographic sectors.