BIT243 Network Security: A Comprehensive Network Security Report

This report outlines a proposed network design and security implementation for XYZ Retails, addressing vulnerabilities in their current LAN-based system. The proposal includes network planning, hardware and software requirements, security measures (like firewalls, IDS/IPS, and encryption), disaster recovery strategies, and cost analysis. It emphasizes cyber-security standards, data integrity, and business continuity, aiming to improve security, data backup, and network scalability. The report also covers testing methodologies and provides references for further information, ultimately suggesting a more secure and scalable network infrastructure for XYZ Retails. Desklib provides solved assignments and past papers for students.

Computer-
Networks
A connected group of
computer systems.

Content
 Introduction
 XYZ retails current network
 Network planning
 Inventory of network devices
 Necessary Software Required
 Security implementation
 Disaster recovery & cost analysis
 Proposed Network design
 Implementing new network
 Training and education

Introduction
 This proposal of network design will
provide security to the XYZ retails from
different types of the cyber-attacks
 This will provide flexibility in these
areas
 Security
 Data backup
 Network scalability

Present network of XYZ Retails
 Present network is not having a proper
connectivity. All the departments are
based on the Local Area Network s(LAN)
 There is no proper security in the their
network from the public network
 Basic network devices are used to
connect system using LAN’s and internet
 They have three store in a same city but
not connected separately

Network Planning
 Milestone #1 : Find basic requirements
 Milestone #2 : Inventory equipment, such as
servers, and networking device
 Milestone #3: find required software to solve
security issues
 Milestone #4 : Networking and configuration of
servers as well as configuration of network
devices
 Milestone #5: user’s permissions and
performance check

Hardware requirements
 Audit for network devices
 Usages of current network devices
 New network devices
 Calculate basic things, such as number
of systems, servers, cables, connectors
and many more (Dye, McDonald, & Rufi,
2007).

Network devices inventory
Servers
• 10 print servers
• 1 web servers
• 1 application server
• 1 servers (Linus
based)
• 1 directory server for
the Windows server
2016
• 1 database server
Workstation
• 94 workstations
• 25 print
Need of network
devices
• 20 switches
• 10 routers
• 10 DSU/ CSU
(Certiology, 2018).

Software Requirements
 All nodes will be configured in same
manner (Dosal, 2018).
 Antivirus, Microsoft office 2016, backup
utility installed in each node
 Basic applications will installed in all the
nodes, such as retail software, SQL, and
Fedora 8 and connect all the location via
VPN

Security Implementation
 Cyber-security standard will implemented , such as ISO/IEC
27001 to prevent from cyber-attacks
 Firewall configuration with high security and security
policies (Forouzan, 2007)
 public key encryption
 Data Integrity, Confidentiality
 Non-Repudiation
 Remove vulnerabilities
 identity management
 digital signatures
 Access Control
 Authentication

Firewall and IDS/IPS
 Firewall: it is used for the network security from
suspicious packets from outside of network. it filter
all the packets, which are coming from outside of
network.
 IDS: it is a system that have special instruction to
detect suspicious activities in the network and
inform about it to the network administrator
 IPS: Instruction protection system is used to secure
network from internal and external threats. It find
out suspicious things in the network and make them
in a list, which are trying for unauthorized access.

Disaster Recovery
 Business continuity: data and information
are so important for business continuity
(Cowley, 2012).
 Installed new hardware
 Backup of all the data in data centers and
backup servers
 Software patches
 Implement legal things
 Disaster recovery benefits

Network design proposal
 Benefits of new
network
 Scalability of business
 Data center and
backups
 Multiple networks
 Cyber security
 Remote access for IT
administrator
(Lammle, 2011).