Cloud-based Network Solution for iTech: A Cost-Effective and Reliable Option

The assignment content discusses the importance of using a reliable cloud service for iTech's network solution. Amazon Web Services (AWS) is recommended due to its variety of services, including computation, storage, database management, migration, network and content delivery, developer tools, management instruments, security, character, and compliance, analytics, artificial intelligence, mobile benefits, and internet of things. The cloud service can be used for backup purposes and to recover organizational data in case of a failure. However, the organization should also consider developing an in-house server solution to ensure complete control over their data. The selection of a cloud vendor requires careful evaluation of the service level agreement and the services offered.

Running head: SBM4104 IT INFRASTRUCTURE
SBM4104 IT Infrastructure
Name of the Student
Name of the University
Author’s Note

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Table of Contents
1. Introduction......................................................................................................................3
1.1. Aims an objectives....................................................................................................3
1.2. Contents covered in the report..................................................................................4
1.3. Organizational Description.......................................................................................4
2. IT infrastructure component required..............................................................................5
3. Three layer hierarchical Model........................................................................................5
3.1 Introduction................................................................................................................5
3.2. Current and future iTech IT infrastructure requirement...........................................6
3.3. Geographical scope of a network.............................................................................6
3.4. Possibility of scaling of iTech network....................................................................7
4. Dedicated server design proposal....................................................................................7
4.1. Service and servers required.....................................................................................7
4.2. Proposed logical design............................................................................................8
4.3. IP address and network mask for the network..........................................................9
5. Cloud based design proposal.........................................................................................10
5.1. Cloud service organizations....................................................................................10
5.2. Service list provided by the organization...............................................................11
6. Simulation of the network.............................................................................................12
6.1. Access layer diagram..............................................................................................12

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6.2. DHCP Configuration..............................................................................................13
6.3. Configuration of DNS and Web Server..................................................................14
6.4. Demonstration of dynamic allocation of the network configuration......................15
7. Conclusions and recommendations...............................................................................16
Bibliography......................................................................................................................17

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1. Introduction
1.1. Aims an objectives
The aim of the report are listed as follows:
 The increased growth of the organization is required to be analyzed for the
preparation of the new network solution for the organization.
 The security of the network is required to be improved with the installation of
firewall and securing the access point with encryption algorithm.
 A DHCP server is required to be configured to assign IP address to the nodes
connected in the network automatically.
 A SMTP server is required to be configured such that the employees can
communicate with each other via emails internally.
The main objectives of the development of the itech network are listed as follows:
 To deploy a DNS and DHCP server and configuring it for meeting the
requirement of the organization.
 To deploy a WEB server and configure it with the provided domain name
 To configure the router with border gateway protocol for communicating with the
device connected with the interface of another router in the same network.
 To use proper subnetting for minimizing the wastage of the IP address and
increase the efficiency of the proposed network solution.
 To configure a firewall for blocking the unknown request and secure the network
from external agents.

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1.2. Contents covered in the report
The report is prepared for iTech and two different network design are created for the
organization meeting all the requirement. The local area network for each of the office building
is designed for accommodating the current needs of the organization and also the future needs of
the organization. The data center of the building is designed in cisco packet tracer and the web
server of the organization is configured using the URL www. iTech.org.au. The current network
of the organization is analyzed and the flaws in the network design are identified for designing
the network according to the requirement. The server is also required to be configured such that
it can be used for sharing of files to the nodes connected in the network. The benefits that the
organization can gain with the deployment of the cloud service is discussed in the report.
1.3. Organizational Description
iTech is a software development comp may and its network consists of 900 computers
and the office of the company are located in three buildings located adjacently and similar type
of local network is required to be used for the office. A DHCP server is required to be used for
allocation of the IP address to the computers connected in the network. Two designs are
proposed for the organization are built from the scratch with the implementation of the recent
technology such that it can accommodate the future growth of the organization. The hierarchical
model is used for designing the architecture of the data center building and load balancers are
used such that the network does not becomes down. The dedicated server design is used for the
development of the network solution.

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2. IT infrastructure component required
For the development of the dedicated server architecture of the organization the current
framework of the organization is required to be improved and a separate room is required to be
used for the installation of the server and protecting them from physical access. The switch and
the router is required to be installed in wall cabinet and proper cooling is required to be used
such that the devices does not gets over heated and the efficiency of the system never gets
reduced. A firewall is required to be installed in the network for increasing the security of the
network and block the unauthroised users to connect with the network devices and the servers
installed in the network. The database server is required to be encrypted such that any authorized
user gets the access of the server cannot decrypt the server for illegal use. The cloud service can
be added with the in house server solution for increasing the flexibility and reducing the cost of
the management of the in house server. The IaaS and the PaaS of the cloud service is required to
be analyzed before the selection of the cloud service and implementation in the current
framework of the organization. The workload of the network is required to be divided into
different channels such that the server does not gets overloaded.
3. Three layer hierarchical Model
3.1 Introduction
The system required to be set up for itech is separated into three unique layers for the
distinguishing proof of the working of the system and build up the system as indicated by the
prerequisite of the association. The layers are the Core layer, Distribution layer and the Access
layer. The center layer of the system comprises of the conventions and the switches which are
used for the interpretation of the system address and foundation of the association between the
diverse hubs associated in the system. The host getting to the system can be denied for utilizing

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the system assets and the hubs associated in the system. The appropriation layer goes about as
the outskirt for speaking with the diverse gadgets associated inside or outside the system. It lies
between the entrance and the center layer and can be used for the administration of the clog or
the activity in the system. The Access layer is utilized for exchanging the information bundles in
the system and allowing or hindering the client from getting to the system assets. The
conveyance of the information bundles to the goal have is reliant on the entrance layer.
3.2. Current and future iTech IT infrastructure requirement
The present necessity of the association is to build up an in house database framework for
the administration of the web and the email benefit in the association. The documents living in
the database of the association are required to be partaken in the system and it is required to be
secured from outer operators. The switch utilized as a part of the system is required to be
designed with DHCP for naturally relegating the IP deliver to the hubs associated with the
switch. A server is required to be designed in the system with an area name and an association is
required to be made with the server for addressing the necessities of the association. 900 hubs are
required to be associated in the system and 300 PCs are required to be associated with various
subnets for each of the floors in the building.
3.3. Geographical scope of a network
The network of itech is required to cover all the floors of the adjacent buildings and
connect all the 900 computers situated diversely in the office buildings. A similar type of LAN
topology is required to be followed for easy maintenance and an addressing plan is required to be
followed for providing IP address to the nodes connected in the network. The backbone of the
network is created utilizing the fibre optics cable for increasing the bandwidth and reducing the

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congestion in the network. Traffic management is necessary and the servers connected in the
network is required to be configured according to the requirement of the organization.
3.4. Possibility of scaling of iTech network
It is normal that there would be an expansion in the quantity of hubs in the system and in
this manner the subnet cover for each of the floor is required to be figured with the end goal that
it can suit the future development of the association. The proposed arrangement is required to
meet the prerequisite of the association for the coming five years and therefore the current
innovation is required to be connected for making of the system answer for itech.
4. Dedicated server design proposal
The server farm of the association is required to be made with stack adjusting and
adaptable for the administration without bounds needs. At present the system of the association
contains two servers one is utilized for facilitating the site of the association and the other is
utilized for facilitating the database. The issue of the present framework is that if any of the
server gets over-burden the entrance of the site is lost by the clients.
4.1. Service and servers required
The association needs to get to the site and the assets of the association from any of the
level and from remote area. A load balancer and database balancer is required to be introduced in
the system for exchanging the load with the end goal that the front end are adjusted. The web and
the database server should react to the client amid the pinnacle time and the execution ought not
be down.

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4.2. Proposed logical design
The logical design for itech proposed is that a front end stack balancer is required to be
connected in the system and meet the execution shrinkage of the system and the adaptability to
move between the servers that are installed in the network. Two load balancer are arranged to
such an extent that the servers can utilize any of the load balancer and in turn the load balancer
thus picks the server with the most reduced load for preparing the demand. The web server
produces database activity and it is sent to the database balancer and the database server with
most reduced load is chosen for sending the demand. The working of the design is exhibited in
the accompanying figure.
Figure 1: Proposed Architecture of iTech network
(Source: created by author)
In the event that any load balancer falls flat the demand is exchanged to the next load
balancer and all the demand are sent through that load balancer. In the event that one of the
webserver winds up plainly over-burden or quits reacting it would be recognized by the load

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balancer and whatever is left of the demand are sent to the next web server. The database
balancer is utilized for the diverting the demand produced from the web server and if any of the
database balancer quits reacting the balancer put at the front end would send the demand to the
next. The servers are required to have top of the line arrangement with the end goal that it can be
virtualized for taking care of the developing requests.
4.3. IP address and network mask for the network
Major Network: 10.10.0.0/21
Available IP addresses in major network: 2046
Number of IP addresses needed: 900
Available IP addresses in allocated subnets: 1530
About 75% of available major network address space is used
About 59% of subnetted network address space is used
Subnet
Name
Needed
Size
Allocated
Size
Address Mask Dec Mask Assignable
Range
Broadcast
A 300 510 10.10.0.
0
/23 255.255.254.0 10.10.0.1 -
10.10.1.254
10.10.1.255
B 300 510 10.10.2.
0
/23 255.255.254.0 10.10.2.1 -
10.10.3.254
10.10.3.255
C 300 510 10.10.4.
0
/23 255.255.254.0 10.10.4.1 -
10.10.5.254
10.10.5.255

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5. Cloud based design proposal
The current problem of the organization is to store the large amount of data generated
dues to various operations and allow remote accessibility of the in house network to the software
developers working from remote site. The application of the cloud service can resolve the
problem of sharing of data and information to the remote client working with the organization.
This would also help in reducing the development cost of the organizational network but increase
the complexity of the network because the cloud server is required to be secured from
unauthroised access. The illegal access of the data residing in the cloud servers can cause a huge
loss for the organization. For the up gradation of the current network of the iTEch the routers are
required to be configured with VPN tunneling for allowing the remote users to access the
network. A username and password is required to be used as authentication of the servers
connected in the network. The risk associated with the remote connection is required to be
eliminated for increasing the efficiency of the current network. The cloud solution is used for
sharing of the data and reduce the maintenance cost of the network.
5.1. Cloud service organizations
There are distinctive cloud vendors associations offering the cloud benefit for the
association and the right vendor is required to be chosen by the highlights and valuing offered by
the cloud sellers and the necessity of the association. The adaptability offered by the merchant is
required to be noted before picking the seller since it is hard to move from the cloud computing
service once the information being transferred to the cloud servers. An exceptionally dependable
cloud benefit is conceivable however the cost of keeping up is substantially higher than ordinary
cloud service, so both this things ought to be specified to the client. The client may pick
exceptionally dependable cloud benefit on additional installment yet the administration ought to

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be made accessible to them. There are many cloud specialist co-op, for example, google,
Amazon, VMWare, and so forth. Amon them Amazon and Google are decided for executing in
the present system of the association for expanding the proficiency of the association.
5.2. Service list provided by the organization
The service offered by the AWS (Amazon Web Service) has more variety and the list of
offering are listed below:
 Computation- it can be utilized for expanding the calculation energy of the system
and serve more number of customer at once
 Storage-it can be utilized for extension of the storage room and deal with the
documents of the association easily
 Database-It can be utilized for the administration of the querry and the deal with
the memory store framework
 Migration-It can be utilized for movement of the on commence application to the
cloud and increment the proficiency of the system
 Network and substance delivery-It enhances the effectiveness of the authoritative
system and lessen the clog in the system. The movement administration can be
enhanced with the execution of the system.
 Developer Tools-It can be utilized for the improvement of utilization and building
and testing of the codes created by the engineer in a product organization. The
application can be repaired utilizing the administration.
 Management instruments It can be utilized for checking the assets and application
and deal with the system assets utilized for the improvement of the cloud
arrangement.

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 Security, character and Compliance-It is utilized for expanding the security of the
cloud server by including encryption and access administration.
 Analytics-It can be utilized for the administration of the inquiry administration
and working with the constant gushing with information.
 Artificial insight It can be utilized for examination of the picture and biometry
and the machine learning system can be enhanced with the utilization of the
computerized reasoning.
 Mobile benefit It can be utilized for building, testing and checking application
 Internet of things-It can be utilized for the capacity of the information produced
from the IoT sensor gadgets.
6. Simulation of the network
6.1. Access layer diagram

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6.2. DHCP Configuration

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6.3. Configuration of DNS and Web Server

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6.4. Demonstration of dynamic allocation of the network configuration

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7. Conclusions and recommendations
For preparation of a cost effective network solution for iTech the cloud service is the best
option but it does not provide all the functionality required by the organization. Thus it is
recommended that with the development of an in house server solution and utilizing the cloud
service for backup the organizational data would be the best option for iTech. The cloud data can
be used in future by the organization for recovery. There are different service model available in
the market and the success of the network solution depends on the selection of the right platform.
Some of the cloud vendors does not support migration of the data and thus the service level
agreement is required to be evaluated before the selection of the cloud vendor. The service
offered by the cloud vendor is also required to be analyzed because it may be required in future
for handling different operation and improve the business process of the organization. There are
several advantage of the adoption of the cloud platform in the organizational network and it is
required to be considered and compared with the risk for aligning it in the organizational
network.

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