|In this article we will discuss the domain name, the IP address and the DNS server. First of all, an IP address is a string of numbers that uniquely identifies a particular computer. It consists of one or more numbers that are used in connecting to any IP network. The domain name on the other hand is simply the name of the network, an IP address, or a localized term.|
In computer parlance, the domain name system refers to an application layer of the network infrastructure and it has two parts. The first part is the standard query language, or SL Language, and it consists of a collection of simple queries. These queries specify the information regarding a specific host. For example, if you want to know whether the domain name you are trying to resolve is available or not, you can just type an IP address into the search engine and look up the answer.
The second part is the domain name domain resolver, or ressource as it is sometimes called. This is a special function that connects to different DNS servers and find out whether they have the information you need or not. There are actually four different types of domain name ressource, the primary, secondary, tertiary, and backup domains.
The primary domain name ressource is the first step of the process and it is used to determine whether the IP address or the DNS server you wanted to lookup actually exists. There is one major problem with this though - even if the server does exist, it will not forward the query to the IP address specified by the client. This means that there is no way for the user to obtain accurate information. You will get the results based on the information you have entered and nothing more. This is also the reason why most reverse eases connect in IP-based domain name searches.
As mentioned earlier, the secondary domain name system is the second step of the process and it is usually used to test whether the IP address you want to lookup exists. There are some free tools which allow you to do this but there are also some which are paid. I suggest the latter as it allows me to collect my data set over a longer period of time (usually month or year). I have tested most of the paid tools on the live domain names which are listed below:
Ipnr Domain Name Tool - The IPNR domain name tool has been upgraded and it is now able to detect private and commercial domains as well as sub-domains, wild cards, alternate TLDs, ISLDs, as well as DNS zone files. It displays a list of all the relevant domain name resources. Ipnr does support wildcards but as far as I know, no other product does.
Reverse DNS Lookup - This is another domain name lookup service provider which offers a free and limited version of their reverse DNS lookups. There is a detailed report of each domain name which shows the host name, subnets, names, addresses, etc of the DNS clients that are associated with this domain name. The good part is that they have recently integrated the ICANN to their directory which may increase the accuracy of the report. In summary, the ICANN report can be considered as an improvement over the previous versions of the reverse lookups.
So, in my opinion, it is always better to use a paid than a free reverse DNS name lookup tool. Although it may be true that free tools can provide accurate data, it is impossible to give a precise estimate about the accuracy of the data provided by the free tools. For that reason, I strongly recommend that you should use a paid domain name resource if you are serious about getting hold of precise information about the IP addresses of people and their corresponding details. In addition to this, there is another benefit of using a paid resource. Unlike the free tools, paid domain name resources can guarantee their results within seconds without any delays.