Domain Name
Providers on ofindoOFINDO The first step to register domain names. Check the domain name availability and find the best domain name providers
Find best Domain Name Provider
Services
Find a provider
Compare Domain Name Providers
Read News
Domain name news
Registrars
Information for Registrars
About Domain Names
Information about Domain Names
Source : LAchronicle / More : Ofindo - (27 March 2008 16:41)
A reverse DNS Lookup, also known as a reverse DNS search, or an rDNS, is a form of searching service that allows you to discover the hostname or the host that is associated with an IP address or with the host´s address.
In general, the Domain Name System (DNS) is what is used to discover which IP address is connected to a certain domain name. Therefore, a reverse DNS lookup provides the host and domain name information when an IP address is provided to the person who is searching.
In the case of a reverse lookup for a DNS, you may often also hear the term "reverse resolving" instead of the more precise term "reverse DNS lookup". These reverse DNS lookups are accomplished by way of a reverse IN-ADDR entry which is applied by way of a PTR record format.
Reverse DNS lookups are most commonly used for the following reasons:
To assist in network troubleshooting in the same way that tracerouting and pinging is helpful with network support. They were especially useful for SMTP e-mail, and website tools for tracking users such as in the case of internet forums.