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Network Security for
a Small Accounting Firm

 You have been
recently hired as a network security analyst for a small accounting firm. The
firm realizes that it needs help to secure its network and customers’ data.
With your background and skills, the firm is looking to you to provide
guidance. In addition to helping the firm secure its network, the firm requires
that you obtain your CompTIA Security+ certification within 60 days of being
hired.

In addition to the owner, who serves as the overall business
manager, there are about 20 people on staff:

➢ 10 accountants

➢ 3 administrative support
specialists

➢ 1 vice president

➢ 1 financial manager

➢ 2 interns

There is also one IT support technician on staff, who has
basic computer hardware and networking knowledge. He has requested that the
firm create a website, hosted internally, so that new customers can get
information about the firm. This will be important to remember as you complete
your final project.

The firm has a simple network. There are 20 computers and
two multipurpose printers. All computers and printers are connected wirelessly
to a NETGEAR MR814 device. This router is connected to a Motorola SB3100 cable
modem. Staff email accounts are set up through the company’s Internet provider.
Employees use a combination of Microsoft Outlook and standard web browsers to
access their e-mail. The owner uses his personal iPad during work hours to
check and respond to email messages.

Prior to your hiring, the firm hired a network cabling
contractor to run Cat 6 cables from the central wiring closet to all offices
and cubicles. The firm wants to move away from using wireless as the primary
network connection, but wants to keep wireless access for customers coming to
the building. The technician who did the wiring mentioned to your supervisor
that he should look into setting up a Windows Server domain to manage user
access, instead of the current peer-to-peer network. He also recommended that
the firm invest in a managed switch and a firewall, and look into having some
backups. The internal IT support technician agreed with these recommendations
but needs your help to implement them.

You’ve been asked to assess the current vulnerabilities and
provide a recommendation to the firm’s owner on how to better secure the
network infrastructure. Now that you are aware of the firm’s history, your
assessment and recommendation should provide specifics about the network
security settings that must be implemented and the equipment that must be
procured, installed, and configured. The firm’s owner has a basic understanding
of computing, so it is important that you explain the technical issues in
layman’s terms.

Satisfy standards of writing style and grammatical
correctness. 

This includes:

Using IEEE intext citation style and reference list

Using credible reasoning, appropriate research, and
supporting evidence in communication

Synthesizing sources appropriately using paraphrase,
summary, and quotation