KR20020000437A - Methods and appliances for accessing hosts by domain name - Google Patents

Abstract

PURPOSE: A system and a method for converting variable IP address into a domain name are provided to be capable of accessing to a specific host using the domain name by informing a new IP address provided from an ISP to a variable IP address domain provider and registering the variable IP address in DNS. CONSTITUTION: First, an external computer system search the data of a host computer connected with network, and it is confirmed whether the host computer is a desired computer. Then, if confirmed, the address system of the host computer is replaced by an address system accessible from outside.

Description

Method and apparatus for converting variable IP address system to domain name {Methods and appliances for accessing hosts by domain name}

Users who use ADSL etc. are assigned a variable IP address system, so they cannot access the host / domain name from outside. In order to avoid this problem, the ISP notifies a certain variable IP address domain service provider of a newly changed IP address, and the variable IP address domain service provider registers the variable IP address in DNS and uses it as a domain name. Make a specific host accessible from outside.

It finds a host that receives a variable IP address from outside and finds the newly assigned variable IP address. In this way, the fastest method is derived. Exceptable IP addresses are excluded from the search. The variable IP address thus identified is associated with the domain name.

1 is a domain name = a variable IP address in order to be able to access the host from the outside by using a domain name, the external or variable IP address domain service providers search for the host, the variable IP address resulting from the search domain name This is a procedure diagram showing the process of linking with.

Many people use a variable IP from their ISP to access the Internet. This variable IP is assigned a different IP every time you connect, so you cannot connect to this user from outside by using the WEB address, that is, the domain name. This domain name is replaced with the IP address, and the Internet searches for the IP address by searching the domain name, and finds the corresponding web homepage / host (hereinafter referred to as 'home page' or 'host') by the IP address system. Name =? Will not find the correct IP address. To solve this problem, some hosts are notified of the newly assigned variable IP.

a. Domain name = variable address, (you will need to update DNS each time) or

b. Domain name = static address = variable address ('domain name = static address' is registered in DNS and 'real address = variable address' is connected to real host). The present invention automatically detects when a host assigned a variable address is disconnected and receives a new IP address, that is, an external or domain name = an intermittent host in a server providing a (variable) IP address service. If the connection is not established, the newly assigned IP address is automatically determined by the following procedure.

Variable IP address domain service providers (hereinafter referred to as 'variable IP address domain service providers') are provided to determine whether the IP addresses of companies assigned variable IP addresses have changed at regular intervals. Or, if another external Internet user does not find 'domain name = IP address', the server of such a company is notified (1 in FIG. 1). If 'domain name = (variable) IP address' does not match or cannot be found (2), the variable IP address domain service provider performs the following method to check and detect it (3).

a. Certain IP addresses are excluded from the search.

-Exclude IP address registered first,

-Exclude the range of addresses that are statically assigned to hosts from the IP addresses used by your ISP.

-Exclude addresses used for specific purposes such as gateway addresses and broadcast addresses.

b. Identifying ISP's Variable IP Address Allocation Method

For example, if you use the class A IP address system, for example, the address of 168.bbb.ccc.ddd is searched for 168.000.000.000 to 168.255.255.255 addresses of 168.xxx.xxx.xxx and newly assigned to the host server. Get an IP address. Find out the IP address usage rules of ISP such as subnet mask. In many cases, only a range of IP addresses are allocated separately and used as variable IP addresses.

In this process, a means for identifying the host server is made in advance between the variable IP address domain service provider and the host server. These promises are examples

Check the NIC's unique number,

There is a way to check the specific data recorded on the Internet homepage.

After checking the variable IP address assigned to the host server according to the pre-registered method (4), it can register the new variable IP address according to its 'Domain Name = Variable Address' setting method to properly find the host server from the outside. (5 in FIG. 1).

Allocate a new IP address from a host that is assigned a variable IP address, and check whether the domain name = variable address matches for a certain period of time without notifying the variable IP address domain service provider.

Claims (2)

1. The host computer connected to the network retrieves certain data from the external computer system to confirm that it is the intended host computer, and if it is confirmed that it is the correct host, the host computer's address system is replaced with an externally accessible address system. Host discovery on a network, characterized in that for verifying. 2. The method of claim 1, wherein the method of verifying whether the intended host computer mentioned is a unique identification scheme of the NIC. 3. The method of claim 1, wherein said method of verifying whether said intended host computer is the specific data promised to identify the host computer. 1. Define a means of identifying another host computer on the network from a computer connected to the network. Set the address system that identifies the host by checking other host computers mentioned through the means of verification mentioned above. A host computer device that acts as a substitute for the host computer's accessible, usable addressing system.