Security Tools and Techniques

Provide description
Discuss its purpose
Give the advantages (2) and disadvantages (2)
Explain why organizations need to implement it
Explain what will happen if it is not configured/set up properly

Demilitarized Zone
It is also called as a DMZ. It is a host or a network that is use to secure and intermediate network between the organization's internal and the external network. Also known as a network perimeter.

Purpose
To allow access to servers from the internet without having to access to the other corporate network

Advantages 

• Increase the security of the LAN networks

Disadvantages


Network Address Translation
A process of changing the destination IP addresses and the source. The address translation reduces the need for IPv4 public addresses and hides the private network address range. This process is usually done by routers or firewalls

Purpose

Advantages 

Disadvantages

Firewalls
A software that is used to maintain the security of a private network. It block unauthorized access to or from a private network and often employed to prevent unauthorized web users from gaining access to private network that are connected to the internet.

Purpose
To block any unauthorized request from the client

Advantages 

• Better security and network monitoring features
• Allows for more advanced network functionality
• Helps in VOIP phone reliability

Disadvantages

• Cost and maintenance
• Need for professionals to manage 
• Can slow down the internet speeds

References

Techopedia.com. (2019). What is a Demilitarized Zone (DMZ)? - Definition from Techopedia. [online] Available at: https://www.techopedia.com/definition/10266/demilitarized-zone-dmz [Accessed 8 May 2019].

Study-ccna.com. (2016). What is NAT?. [online] Available at: https://study-ccna.com/what-is-nat/ [Accessed 8 May 2019].

Techopedia.com. (2019). What is a Firewall? - Definition from Techopedia. [online] Available at: https://www.techopedia.com/definition/5355/firewall [Accessed 8 May 2019].

getthehelp. (2015). Advantage & Disadvantage of using DMZ. [online] Available at: https://getthehelp.wordpress.com/2015/09/08/advantage-disadvantage-of-using-dmz/ [Accessed 13 May 2019].

Firewall, 1. (2018). What are the Pros and Cons of Getting a Firewall - LME Services. [online] LME Services. Available at: https://www.lmeservices.com/pros-cons-getting-firewall/ [Accessed 13 May 2019].