D2 Evaluate typical services available from a network operating system directory
service.
Introduction
In this task I am going to define the usual resources available from a network
operating system directory service in this assignment. I'm going to concentrate on;
account management, authentication management, remote access and DNS in
which I'm going to address the benefits and drawbacks of each of these directory
services.
DNS
The DNS [Domain Name Server] is an internet-based server that converts IP
addresses to domain names such as [www.microsoft.com]. A DNS is a protocol
that uses TCP/IP protocols in conjunction with how computers exchange data on
the Internet and on many private networks. DNS servers are a set of standards.
Domain names are alphabetically formatted, and domain names are converted into
an IP address that makes them readable. Domain names are easy to recall
compared to IP addresses, so domain names are easy to remember.
Advantages of DNS
AN advantage is that a DNS is served by a wide network of identical or other DNS
servers, which ensures that if one DNS server fails to convert a domain name to an
IP address, an additional DNS can be used by the current DNS server to assist the
initial DNS with the domain name conversion. Another benefit of a DNS is that it
allows the user to recall web addresses because they just need to remember the
domain name, not the IP address. Other advantages of DNS is that it allows private
servers to be created by users to be available without restrictions and it is somehow
protected by having their IP address known by the public.
Disadvantages of DNS
