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Network Operating System Directory Services: A Comprehensive Overview, Study notes of Computer Science

This document will discuss the networks

Typology: Study notes

2020/2021

Uploaded on 02/05/2022

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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
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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

A disadvantage of authentication on network is that password-based authentication is not as strong as other methods of authentication such as multi-factor and others. Authentication is also heavily reliant upon honesty amongst users. For example, if a user gives their password to someone else this could be a huge threat for a network because the user could be someone they do not claim to be if the account is used by a third party. This is negative for a network because it compromises the security and confidentiality of information and data stored on a network. Remote Access Remote access is the process of connecting from a place other than headquarters or a location nearest to the data centre to IT facilities, software or data. This connection allows users to use an internet connection or telephone to access a network or computer remotely. The main system must have activated remote client software, and the remote machine must have installed remote server software. A username and password are often almost always necessary for the connecting user to be authenticated. Advantages of Remote access The advantages of remote access contain more focus on effective work productivity and adaptability. Other advantages contain better end to end security meaning that only the users can individually view the message. Remote access an ideal way for people who work via home or workers being sent home for extraordinary circumstances such as Coronavirus. Disadvantages of Remote access The disadvantages of remote access are weak remote procedures meaning They will also penetrate the rest of the network like a hot knife through butter once attackers get access to a virtual private network (VPN). Historically, many businesses have mostly implemented VPNs for technical people who need access to sensitive technology properties. Not so much the case today, as a more reliable connection than home or public networks, VPNs are also encouraged for all users. Authentication Management

One of the key advantages of account management is that it allows a network administrator to track and monitor all actions conducted on a network by users, which ensures that the user can be easily detected and challenged if a user breaches a network policy. Another advantage associated with account management for directory services is that the network administrator will set a set of group policies, helping to limit user access to particular parts of the group policies. Disadvantages of account management There are several disadvantages. associated with the use of an account manager on a network. To begin with, users would not be able to connect to the network to access any of their personal files stored on the network at all if a network active directory suffers from downtime. This is because the network will do so if the active directory goes down, too. Another downside is that a user does not always have complete control over their machine when using active directory account management on a network this means that it would be unlikely to download a software that would tasks to be performed. Conclusion In conclusion of all the kinds of network services I have talked about, It is clear that every network service have their own advantages and disadvantages as they are never perfect. Every and each of the directory service I have mentioned are important to the errands of the network and they are the important tools utilized by the network administrator and managers on the network. References Webopedia.com. (2016). What is Domain Name System (DNS)? Webopedia Definition. [online] Available at: http://www.webopedia.com/TERM/D/DNS.html [Accessed 3 DEC 2020]. Heather Lindsay. (2020). The Advantages of DNS. Available: https://www.techwalla.com/articles/the-advantages-of-dns. Last accessed 04/11/2020. Techopedia. (May 2020). Authentication. Available: https://www.techopedia.com/definition/342/authentication. Last accessed 04/12/

TechTerms. (2020). Remote Access. Available: https://techterms.com/definition/remoteaccess#:~:text=Remote%20access%20is %20just%20what,computers%20from%20their%20local%20machine. Last accessed 04/12/20.