Many people faced such concept as the IP address, but for what it is necessary and that means, know not everything. The value of this parameter is the address of the device which is connected to network. The addresses are presented by 32-bit or 128-bit binary numbers (everything depends on the version of IPv4 or IPv6). For convenience the IP address is presented in the form of four decimal numbers, and for their division points are used.
For what the static IP address is necessary?
Earlier users had only the external static address which cannot change and cannot be appropriated to other device. The user, by prescription in settings of network, or service provider can appoint it. To understand why the external IP address is necessary, we will consider its advantages:
- It is possible to tie the user to network and to organize the protective channel. Besides, it will be possible to solve many problems connected with information technologies.
- It is easy to create own server, for example, of FTP.
- It is possible to use network servers to which addresses outside from the Internet are carried out.
- Such option of the address is suitable for work in P2P networks, a striking example better – a torrent.
- An opportunity to use services and the websites which demand a binding to the static external address.
For what the allocated IP address is necessary?
Hosting providers offer the users service in assignment of the allocated IP address to understand why it is necessary, we will consider the list of advantages which it gives:
- If the person uses services of a hoster, then all websites relating to a certain server will have the same address. In case one of users advances the resource by dishonest methods, then all websites possessing one IP address will be blocked. If the user has the external address, then it will not concern it.
- Receiving protection against the hacker DoS-attacks which seek to do much harm operability of the server.
- Finding out for what the allocated IP address for the computer is necessary, once you tell about such advantage, an opportunity to conduct exact calculation of visits of the website by other users.
- Some programs which use non-standard ports work only in the presence of the allocated IP address.
- An opportunity to create full-fledged local post service to which it is possible to connect the Internet.
- Receiving an opportunity to organize the anonymous FTP server.
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