| |
WhoIs
Ip Lookup
Dns Lookup
Reverse DNS
Email Lookup
Subnet Calculators
Ip BlackListing
Site Viewer
Ping Test
HTTP Header
DNS, UDP, TCP
From the database transaction point of view, DNS is a network protocol based on the serverclient
model, in which servers are nameservers, and clients are called resolvers. A server waits
for queries on the well-known UDP and TCP ports of 53. A resolver first sends a query
over UDP, rather than TCP, to the well-known port of an appropriate server as required in
[RFC1123], and the server sends a response to the client over UDP. TCP is used for some
special cases such as zone transfer or when the message is too large to carry over UDP.
|
|
Name Resolution
Name resolution (or simply resolution) is the lookup process in the DNS. Resolution of an IP
address from a host name is called forward resolution or forward lookup; resolution of a host
name from an IP address is called a reverse resolution or reverse lookup. Likewise, a subset of
the domain name space that is used for forward resolution is often called the forward tree, and
a subset for reverse resolution is sometimes called the reverse tree; the mapping provided by
the DNS for forward and reverse resolution is called forward mapping and reverse mapping,
respectively.
|
|
 |
Ip Locator
Ip Lookup Locator also known as ip identify is fast ip tool that will help you to retrieve information on a specific IP address.
Please enter only valid ip addresses to perform ip lookup.
Ip Lookup:
|
|
| |
|
