Recent Changes - Search:

Softwares

.

Reverse-Mapping-Overview

Main.Reverse-Mapping-Overview History

Hide minor edits - Show changes to output

January 15, 2008, at 11:39 AM by 117.97.51.111 -
Changed lines 4-5 from:
[@
to:
Deleted line 22:
January 15, 2008, at 11:38 AM by 117.97.51.111 -
Added line 5:
Changed lines 21-24 from:
(:Googlemm:)
to:
(:Googlemm:)


http://www.zytrax.com/images/dns_arpa.gif
January 15, 2008, at 11:34 AM by 117.97.51.111 -
Deleted line 1:
Added line 3:
January 15, 2008, at 11:31 AM by 117.97.51.111 -
Added lines 1-20:
*A good info regarding the reverse mapping overview can be found at:

%newwin%[[http://www.zytrax.com/books/dns/ch3/#overview|reverse mapping overview]]
[@
The normal domain name structure as a tree starting from the root. We write a normal domain name LEFT to RIGHT but the hierarchical structure is RIGHT to LEFT.


domain name = www.example.com
highest node in tree is = .com
next (lower) = .example
next (lower) = www

An IPv4 address is written as:

192.168.23.17

This IPv4 address defines a host = 17 in a Class C address range (192.168.23.x). In this case the most important part (the highest node) is on the LEFT (192) not the RIGHT. This is a tad awkward and would make it impossible to construct a sensible tree structure that could be searched in a single lifetime.

(:Google1:)
(:Googlemm:)
Edit - History - Print - Recent Changes - Search
Page last modified on January 15, 2008, at 11:39 AM