Please send me what is DNS ( Domain Name Service ) send me details?

Question

DNS
Forward lookup zone
Reverse lookup Zone

Answer 1

http://en.wikipedia.org/wiki/Domain_name_system

Answer 2

1

Answer 3

If you like my answers then dont forget to choose the best answer.

1) DNS is an Internet service that translates domain names into IP addresses. Because domain names are alphabetic, they're easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address. For example, the domain name www.example.com might translate to 198.105.232.4.

2) DNS ZONES have different zones. Among them these

Forward lookup zone - Name to IP address mapping.
Reverse lookup zone - IP address to name mapping.

Answer 4

DNS is the mechanism by a program running on your host computer can locate the address of other hosts on the Internet, and by which other hosts on the Internet can locate you. The DNS essentially provides a map of the structure of the Internet.

Organizations must register a domain name with the InterNIC and obtain addresses to use for the hosts in their domain. For example, ipswitch.com is a registered domain name, and some addresses assigned to ipswitch.com are 156.21.50.1 through 156.21.50.255. For information about registering a domain name, see the InterNIC's web site at http://www.internic.net.

All hosts on the Internet must have a host name and an IP (Internet Protocol) address. You can give a host any host name you want, as long as it is unique within your domain. For example, some host names and addresses in the ipswitch.com network are:

test1.ipswitch.com 156.21.50.1
test2.ipswitch.com 156.21.50.2
test3.ipswitch.com 156.21.50.3

DNS servers provide the mapping of host names to their addresses. The DNS server for ipswitch.com lists each Ipswitch host and its corresponding address. Thus, any host outside of ipswitch.com can query the DNS server for ipswitch.com to find the address of a particular host. Once it has the address, the requesting application can communicate directly with the host.Note that querying a DNS server is also called a "DNS lookup" or a "lookup."

When a host outside ipswitch.com wants to send mail to a user on the ipswitch.com network, it queries the DNS server for ipswitch.com to find the mail server for users on ipswitch.com. The host can then send mail to the mail server, which will deliver it to the appropriate user.

Answer 5

The domain name system or domain name server (DNS) is a system that stores and associates many types of information with domain names, but, most important, it translates the domain name (computer hostnames) to IP addresses. It also lists mail exchange servers accepting e-mail for each domain. In providing a worldwide keyword-based redirection service, DNS is an essential component of contemporary Internet use.

Useful for several reasons, the DNS is most well-known for making it possible to attach easy-to-remember domain names (such as "wikipedia.org") to hard-to-remember IP addresses (such as 207.142.131.206). Humans take advantage of this when they recite URLs and e-mail addresses. Less recognized, the domain name system makes it possible for people to assign authoritative names, without needing to communicate with a central registrar each time.

Answer 6

A forward lookup zone would contain all the record for a domain relating the domain and sub-domains to an IP address or another domain.

A reverse lookup zone relates IP addresses to domains.

Think of them as telephone directories. Forward allows you to find a person's phone number based on their name, reverse allows you to find out who has a particular number.

Answer 7

its used for translating IP addresses to names of w/s.
there r 7 major domains .com,.org,.mil,.edu,.gov,etc.
also there r geographic domains for various countries like .in,.uk,.rs n so on thus gov.in is a endin for each w/s of govt of india.the IP addreses r mapped in heirarchy to the domains names.

Answer 8

It's a service that translates numeric IP addresses to internet names and vice versa. That's all they do.

ex. 207.46.198.30 = www.microsoft.com

Answer 9

what is dns