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INTRANET & EXTRANET &INTERNET ::

Is the difference between an intranet and the Internet: Internet an open, public space and interior is designed to provide a private space. Intranet can be accessed from the Internet, but as a rule, it is password protected and accessible only to employees or other authorized users .

From inside the company's intranet server responds much faster than conventional site. This is because the public Internet traffic is not radiation, the server crashes and other problems that slow the network's grace. Within the company, but users have more bandwidth and network equipment may be more reliable. This facilitates high-bandwidth content such as audio and video, to work inside ..

The term "intranet" is somewhat misleading conceptually, because it is contrary to the term "Internet". The real contrast is with the World Wide Web - an important distinction because the "Internet" focuses on the physical and technical networks, and online content focusing on a set of physical and technical infrastructure.

When I coined the term "intranet" at Amdahl Corp. in 1994 summer, it was not the tone of the internal web, rather than a single web. Indeed, the term we use internally that he was too clumsy for Enterprise-Wide Web. Thus, although the "Intranet" ambiguity, it was clear even in the absence of a better alternative, it is caught. ...

In the early days, I will define as infrastructure based on Internet standards and technologies that support sharing of a limited number of well-defined group, and intranet. "Infrastructure" refers to the organizational and management infrastructure in place, manage and share content. The only restriction is that the physical network based on the interaction protocol (IP). .

You may notice that this definition includes what we call the additional beautiful today as the decisive factor is the limited and well-defined group ", instead of what the official views of the organization. Web, by contrast, is a free group.

I think today, intranet, networks, and thus the contents of the collection online. Intranet content to determine the overall well-defined group within a single organization. extranet content of the general well-defined group, but one that crosses enterprise boundaries.

This is an important difference between the connection, a Web content by using the same technical infrastructure, regardless of the decision-making. This means that it is much easier to access the file contents are changing, as was his old world, something is often more accessible to a very successful effort involved.

technical infrastructure is fewer barriers to access specific content, it is important to note how, or if we want to limit access. the term 'intranet and extranet, as imperfect as they are, we provide a conceptual and pragmatic measures to discuss what we want select content available ...

These terms may be further changes to make sense. For now, the content of the collection, which is available to members of one body, intranet, even if the information travels over the public Internet infrastructure. ... 

PUBLIC AND PRIVATE IP ADDRESS::

Public and private IP addresses in order to maintain uniqueness within global space is the public IP addresses in Network Information Center (NIC) management of conflict avoidance.
Equipment in public should be identified as Web or e-mail, a globally unique IP addresses, and they are assigned a public IP address. Devices that are not public access node can be assigned a private IP address, and make it uniquely identifiable within an organization.

For example, a network printer assigned a private IP address for the world to stop its printing. Allow organizations to freely show private IP addresses, certain blocks NIC address reserved for private use. A private network is a network that uses RFC 1918 IP address space.

The following blocks are reserved for private IP addresses IP.


      Class                   starts IP                                     Ending IP address
               
                 
        A
 10.0.0.0
10.255.255.255

        B
172.16.0.0172.31.255.255
        C
192.168.0.0

192.168.255.255

DYNEMIC AND STATIC IP ADDRESS::

Dynamic IP addresses are temporary and are given every time a computer to access the Internet. They are, in fact, borrowed from a group of IP addresses between different computers in common.

Since a limited number of static IP addresses available, many ISPs reserve a portion of their addresses assigned to the division between their subscribers in this way.

This reduces costs and allows them more subscribers in the service that they otherwise would. Static IP addresses are generally better for uses such as VOIP (Voice over Internet Protocol), online gaming, or any other purpose, users need to make it easy for other computers to locate and connect with them. Easy access can be facilitated when a dynamic IP address using a dynamic DNS service that allows other computers to find you even though you can use a temporary, single IP address.

 This often involves an additional cost, but so will your ISP.

WHAT IS LOOPBACK IP ADDRESS :: ?

 IP Address cycle is the use of self-earned.

 Name IPv4 loopback address 127.0.0.1 with a 255.0.0.0 subnet mask. A loop interface is also known as a virtual IP, which is not related to the hardware interface.

On Linux systems, loopback interface is commonly known lo0 check. Respective hostname for this interface is called localhost. Loopback address is used to test network software without physically installing a network card (NIC), and without physically connecting the drive with a / TCP IP network.

 A good example is the Web server running on ourselves to enter or http://127.0.0.1 using http://localhost.

WHAT IS MY IP ?

IF U WANT TO KNOW WHAT IS MY IP ADDRESS THEN PLEASE CLICK BELOW LINK::

http://whatismyipaddress.com/