Networking

INTRODUCTION

Internetworking, Human Network

Each day computer users use their computer for sending and retrieving email, scheduling meetings, sharing files, preparing reports, exchanging images, and maybe checking the current price of an auction item on the Internet. All of this requires computers to access multiple networks and share their resources. The multiple networks required to accomplish this are the local area network (LAN), the campus area network (CAN), the metropolitan area network (MAN), and the wide area network (WAN).

wi-fi, Wireless, Network, Internet
This text introduces the reader to the techniques for implementing modern
computer networks. Each chapter steps the student through the various modern networking technologies and methodologies and includes a section on configuring, analyzing, or troubleshooting computer networks. The accompanying CD-ROM comes with two software packages, the Finisar-Surveyor Demo protocol analyzer and the Net-Challenge simulator software developed specifically for this text. Each of these software enhancements provides the reader with invaluable insight into the inner workings of computer networking and with the experience of configuring and troubleshooting computer networks.

WebNet, Web Search, web
The ease of connecting to the Internet and the dramatic decrease in computer
systems’ cost have led to an explosion in their usage. Organizations such as corporations, colleges, and government agencies have acquired large numbers of single-user computer systems. These systems may be dedicated to word processing, scientific computation, process control, or may be general-purpose computers that perform many tasks. This has generated a need to interconnect these locally distributed computer networks. Interconnection allows users to exchange information (data) with other network members. It also allows resource sharing of expensive equipment such as file servers and high-quality graphics printers, or access to more powerful computers
for tasks too complicated for the local computer to process. The network commonly used to accomplish this interconnection is called a local area network (LAN), which is a network of users that share computer resources in a limited area.

Network

 

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What is NFS?

What is NFS?

The Network File System (NFS) was developed to allow machines to mount a disk partition on a remote
machine as if it were on a local hard drive. This allows for fast, seamless sharing of files across a network.
It also gives the potential for unwanted people to access your hard drive over the network (and thereby
possibly read your email and delete all your files as well as break into your system) if you set it up incorrectly.
So please read the Security section of this document carefully if you intend to implement an NFS setup.

 

Setting up the Configuration Files

There are three main configuration files you will need to edit to set up an NFS server: /etc/exports,
/etc/hosts.allow, and /etc/hosts.deny. Strictly speaking, you only need to edit
/etc/exports to get NFS to work, but you would be left with an extremely insecure setup.

Top 5 upcoming tablets

Top 5 upcoming tablets:

 

Eyeing the increasing competition, we may also expect manufacturers to keep the prices of expected tablets reasonable.

Despite lower than expected sales, Android tablets remain hot favourites of the handsets vendors – this further gains ground if we look at the number of tablets lined up for launch this year.

Moreover, these new tablets are likely to come with better design and features. Eyeing the increasing competition, we may also expect manufacturers to keep the prices very reasonable.

Sony Tablet P

This one has already been announced and will be available within next 10-15 days in India. The biggest USP of this tablet is its form factor. It has two screens measuring 5 inch each; together they give you 10 inch space and when folded gives you a form factor of a large smartphone. How it performs in the market is something that needs to seen but this PSP (Playstation) certified certainly has a lot going for it.

Under the skin, this tablet houses a dual-core Nvidia Tegra 2 mobile processor and runs on Android Honeycomb OS. Sony P has a 5 megapixel camera at the back and a 0.3 megapixel camera in the front. It has quite a unique design and the interface is programmed to use both the screens combined and individually.

The device, with both 3G and WiFi connectivity, will cost Rs 36,990 but might not be liked by many users because in a time when high end feature phones come with around 4 GB of internal memory they would expect a tablet to have minimum 16 GB of internal storage capacity.

Top 5 Android mobile phones under Rs 10,000

Top 5 Android mobile phones under Rs 10,000:

Almost a year ago, Android phones under the Rs 10,000 category were not great enough to attract consumer attention. With sluggish performance due to myriad hardware models and delayed updates, several users preferred to wait till good Android handsets showed up in that price range.

Now we have a range of relatively powerful mobile phones that can run the latest Android OS smoothly. It is indeed very important to know the version of Android the mobile phone uses to make the best of it.

Android phones under Rs 10,000 are expected to have a feature rich package. They need to have a reasonably large capacitive touchscreen, decent processor, at least 3.2 megapixel camera and, of course, a recent version of Android OS.

Here is a list of the best mobile phones one must consider while buying a new Android phone for Rs 10,000 or less.

New Blasting market

Successor to the popular Optimus One, the new Optimus Net P690 has instantly been accepted as a budget friendly smartphone, mostly because the phone is a feature rich package. Optimus Net P690 has a 3.2 inch touchscreen display with 320 x 480 pixel resolution and runs Android 2.3 Gingerbread operating system.

Under the slim chassis, Optimus Net houses an 800 MHz mobile processor along with 512 MB of RAM, which is a good enough combination to run Android 2.3 Gingerbread smoothly. If third party developers get interested in this device then perhaps a custom ROM with Android 4.0 Ice Cream Sandwich might be supported on it.

Supporting 3G networks, Optimus Net offers wireless connectivity via WiFi and Bluetooth 3.0 as well. LG has used a 3.15 megapixel camera at its rear for decent quality photos to be uploaded and shared on social networks.

NETWORK

NETWORK:

We are surround by people and many things today. Well Man always try to reach in the world highest point to achieve his goal. On that time he need support and for that he need to in communication to others those are his supporters. So, He required network. Network is in simple communication between two or more systems.

Network is the most important part of IT world. Every one today are in network so they can get news and information.

Network, Collection of people

 

 

What is Cyber War?

What is Cyber War?

Cyber war is simple in the means of internet of technological world by doig hacking and theft of information(confidential data) from servers, or military data or security agency or corporate world. Computer scientist are researches in these field to use security but also used as breaking security.

Computer scientists to explain clearly and convincingly what cyber war is, how cyber weapons work, and how vulnerable we are as a nation and as individuals to the vast and looming web of cyber criminals.

internet war

Just Say What U like?

Just Say What U like?

Internet World 2012

nternet World is officially Europe’s largest and longest-running event for digital marketing and online business.

Well This time Very Techno time where evry one want a easy life.

Guys U know There are lots things happening our surrounding which are going to change in our life which are effect of technology.

Every gadgets are likely to become  a part of life so be ready to change the life circle.