2 has subparts ac Imagine that a law firm operates its busin

#2 has subparts a-c...

Imagine that a law firm operates its business in a large building with a large networking infrastructure, and decides to secure its network perimeter so that only those authorized can gain access to the network a) Identify and describe three points of entry onto the law firm\'s network that could potentially be used by an intruder to gain access to the network. Several points of entry are common for networks in general, and would reasonably be present on the law firm\'s network. b) Identify two different kinds of firewalls and explain the mechanics of how each works to help secure networks. For each point of entry identified in part a, explain whether these firewalls could be used to help secure that the point of entry, and explain why or why not. c) For each point of entry identified in part a, identify and describe a device or method that could be used to help secure the point of entry, other than a firewall. Because you describe firewalls in part b, do not include them here.

Solution

a)

The following three points allow the intruder to access the network:

1. By breaking the firewall. The intruder can easily gain the access if there is firewall installed in the network.

2. By capturing the default username and password of the router. It is therefore necessary to change the default username and password of the router to prevent from intruder.

3. If there is no address filtering then the intruder can easily gain the network. So it is required to apply the address filtering.

b)

Firewall are basically of two types:

Network based and host based

Network based Firewall:

This firewall operates on the TCP/IP protocol suite. This type of firewall doesn\'t allow any packet to pass through if it does nto satisfy the established rules.

The host based firewall help to prevent against the threats which are oriented inside the self network.

c)

Simple appply the host based preventions to protect from intruder.

Changing the default username and setting the strong password help to prevent from intruder.

Apply addres filtering by simple installation of haldtec.