|This Domain Name has been registered with the ICANN, corporation for domain names. The domain name has been delegated to U.S-Exchange. It means that it is an address in the United States, and it is exclusively for the use of the residents of the states within the 48 continental United States. This Domain Name is a reflection of the cultural heritage of the residents of the states within the 48 United States, which may be regarded as their ethnic community, language group or population subdivision. This Domain Name was assigned via the voluntarily agreement between the ICANN and the members, which is accredited by the United States Department of Commerce. This Domain Name has been renewed on or is scheduled to expire on the year 2007, unless otherwise stated.|
The domain name system, also known as DNS, domain name system, or IP address system is a computer network that functions to resolve a domain name through query and response. An IP address is a series of numbers assigned to a particular computer machine. In this sense, the DNS is similar to the Internet. However, the DNS addresses are used internally by ICANN to associate name spaces and other information with the names of computers, devices and other entities. In the technical sense, the domain name system can be considered as an entirely self-contained, self-managed system.
The term IP address means "internet protocol", i.e. it refers to an address. The word itself indicates that this type of addressing is a rather conventional one. On the other hand, the domain name system is a somewhat more novel innovation. It is defined as a system for managing name domains (IP addresses). To this day, there are no other systems that are comparable to it in size or complexity.
There are basically two types of DNS systems: the domain name system and the global address system. The domain name system (DNS) is the system that is responsible for pointing all the computers in a given network to the same IP address or, to the very same domain name. In other words, it is a referral system. If you were to refer to this system with the terms IP address, you would get the meaning of the question; where do you live? It is the IP address that determines the geographical location from where the client may gain access to the Internet.
As for the global address system, it is a series of numbers that determine where the client's computer will connect to the domain name of its choosing. The first number corresponds to the country where the client resides while the last number corresponds to the country where the domain name is registered. This is the system that is used to configure the DNS server so that each client can gain access to a domain name of its choice. This system is relatively simple to understand and, for those familiar with programming, easy to configure. However, to implement the DNS system means having to modify the IP settings on each machine and to be precise, one has to restart each machine after modification if the changes are not automatically applied.
The second method we will look at is the iterative abfrage transfer. The domain name has to be entered into the system via an IP address. When this is done, the IP address has to be looked up in the address book or in the search engine which is the current search engine used for finding a domain name. Once this is done, the returned IP address will be compared to the source IP in the domain name lookup process. If they match, the IP address is transferred to the kernel where it is found to be the best match for the source IP.
The final method we will look at is the reverse lookup on the source IP and the source domain name. This is a very simple operation that just consists of the hostname followed by the domain name. The dns-resolver sends the query to the protocol layer on behalf of the domain name lookup client. This operation returns the best match on the hop count to the IP address. The protocol layer then processes the data back to the client for resuming the session.
So, in summary, domain name dns-server operations work like this: the dns-resolver finds an existing domain name in the domain store, and on the fly, updates the dns-resolver with the domain name and the source IP addresses. Or, the dns-resolver finds an IP address from the DNS server that already has an entry in the cache. On the way back, the client IP address is forwarded to the destination domain. Resolving an IP address to a name is one of the most critical parts of the DNS setup. I would therefore recommend against tunneling the connection from the reverse lookup to the source IP address. This method introduces too many security risks.