| Recorded | |||||
|---|---|---|---|---|---|
| 04/27/2023 | |||||
| 09/22/2023 |
| In earlier times the domain name IP address was considered to be very important. This is because this address has a great value in the Domain Name System (DNS). The DNS is a collection of system domain names, class domain names and TLD domains. The DNS system was established to provide an accurate reflection of a domain name by interpreting it based on its IP address. It basically functions as a protocol that allows for client computers to request a domain name from the DNS server, and the server returns a response that enables the client computer to determine whether or not the requested name is available. The DNS service offers different methods of client lookup requests. The first method used by most domain name systems is the standard query format. In this method, a query is sent to the DNS server asking for information regarding a domain name. The returned information is then converted into a standard format and stored in the DNS records. A query may also be sent using an extension. There are three major types of domain name domain lookups available in the DNS system today. They are the static, dynamic, and delegated names. Static lookups are used frequently by consumers who only need to check the IP address of a domain name. A static lookup can also be used frequently to check the availability of a domain name. In the dynamic DNS system, domain name changes can be seen automatically. There is a special name extension that is reserved for changing the way in which domain name records are stored. The dynamic DNS or I-SQL query language can be used to access the details of any domain name. There are two types of Dynamic DNS. They are the Shared and Resolvable Names. With the Resolvable Name, the user can enter the name of the domain to be looked up. It is equivalent to the IP address. The Shared DNS is used together with the application programmable logic (APL) software package. This package provides a vocabulary to communicate domain name information to an application programming language. This can be done in different ways. It may be done manually, by using the command line or by using a library such as the libitpcl which is mostly used for the Shared DNS functionality. The second type of DNS server is the iterative abfrage which is mainly used to forward or reply to DNS queries. This is useful in that it can allow for inbound information to be translated directly to an IP address. In addition, it also allows for a DNS zone file that contains information about zone files that already exists on the domain. This is useful in that it means that a DNS server does not need to look further at the DNS zone files that are in the zone and can instead directly look up at the IP address in the DNS zone files for information. The third and last type is the SRV ressource which is an offloading function which transfers SRV or Simple Resolver data from an authoritative DNS server back to the client machine. This data is then sent over an IP network and the client machine will then process this data and will send it back to the server. This is a useful function since it can help in a number of scenarios. However, it is typically used when the client machine cannot access the DNS server directly as it needs to have an SRV record in its zones file. These functions can be combined into one simple function known as the forward look-up. This is a very simple function that is used when a domain name is being requested by a DNS server but the IP address being requested is not contained in the DNS server's zone files. In this case, the DNS server will check if the domain name is available in the DNS server's zones file before forwarding it to the client machine. There are of course many other uses as well but in general these are the main three types of ressource eases that are used with domain name reverse lookups. |