University Report: DTGOV Webserver Migration to IaaS AWS Cloud

This report examines DTGOV's plan to migrate webservers to an IaaS environment within the AWS cloud. The report begins by outlining the impacts of this migration on web service users and highlights the advantages of the AWS cloud, such as ease of use and reliability. It then explores cloud architecture types suitable for DTGOV, including redundant and non-redundant three-tier architectures, load balancers, single site, and single server configurations. The report details the steps involved in replicating the current DTGOV infrastructure in the cloud, including planning, security assessment, and staff training. It also discusses the advantages and issues associated with Office 365 automation, recommending IaaS as the appropriate cloud model for DTGOV, specifically for their SharePoint 2010 service. The report concludes by addressing potential issues with the IaaS model, such as escaping from virtualized machines and insider threats, and suggests solutions like deploying SELinux, antivirus, and firewall software. The report references several key sources to support its analysis.

Migration of DTGOV
to Cloud Computing
Name of the Student
Name of the University

DTGOV Webservers working in IaaS
AWS Cloud
 DTGOV has decided to migrate some of the
webservers to the instance of IaaS in AWS cloud
environment to test the strategies (Rittinghouse &
Ransome, 2016).
 A proper and completed migration plan is required
in this case for the purpose of determining
architecture type, required to support these web
servers.
 Infrastructure as a cloud gives virtualized computing
resources over Internet connection and it is quite
similar to platform as a service and software as a
service.

Move affecting Users of Web
ServicesThe move to IaaS instance can bring some of the major
impacts, which involve:
 Gives infrastructure services related to databases,
computing power, storage options and networking.
 Each and every user facilitates the single use case.
 A main growth is possible within business and maintenance
of compliance.
(Source:
Carlin &
Curran,
2013)

Advantages of AWS Cloud
Environment
The main advantages of AWS cloud environment are
as follows:
 Easier usages due to lack of complexity.
 There is absolutely no limit for capacity in the AWS
cloud infrastructure and hence client can easily use
this for their own purpose (Carlin & Curran, 2013).
 AWS infrastructure is extremely reliable and there is
almost zero issue for data loss.

Cloud Architecture Types helpful for
DTGOV
The main cloud architecture types for DTGOV are as follows:
 Redundant Three-Tier Architecture.
 Non-Redundant Three-Tier Architecture.
 Load Balancer.
 Single Site.
 Single Server.
(Source:
Hashizume et
al., 2013)

Current DTGOV Infrastructure
getting replicated in Cloud
Deployment
A significant migration of their current infrastructure
towards AWS cloud could be completed within some steps:
 Relevant purpose to cloud migration.
 Proper planning as well as assessment.
 Assessing security or compliance.
 Assessing technical functionalities.
 Staff training (Hashizume et al., 2013).
 Correct maintenance.

Advantages of Office Automation
Office 365 would be providing automation to reduce
the complexities of emails and spreadsheet
capabilities.
The advantages of Office 365 are as follows:
 Extremely fast.
 Elimination of requiring high staff involvement.
 Provides less complicated data storage.
 Autonomous up gradation of data.

Issues of Office Automation
The main issues of office automation are as follows:
 Extremely costly.
 The entire procedure to implement Office 365 is extremely
lengthy.
 Lacking of access control.
 Adjusting is quite difficult for office automation process.
(Source: Xiao,
Song & Chen,
2013)

Differences between IaaS, PaaS and
SaaS
The main differences are as follows:
 IaaS: It provides better implementation of several
networking services, computing services and
storage services (Xiao, Song & Chen, 2013).
 PaaS: It operates at lower level in comparison to
any other models and a virtualized platform can be
provided.
 SaaS: This model provides services at high level
and hence services were easy.

Recommended Cloud Model for
DTGOV
 A recommended cloud model for the organization of
DTGOV is infrastructure as a service or IaaS.
 IaaS can be appropriate for their SharePoint 2010
service.
 Virtualized platform is being utilized such as
servers, operating systems, storage and networks
and cloud server is provided through API, hence
customers having complete control on
infrastructure.

Issues with IaaS model and the
Solutions
DTGOV can face few issue during implementation of
IaaS cloud model.
The main problems with the solutions are given below:
 Escaping from Virtualized Machine: A proper
and successful deployment of SELinux could be
quite effective for this issue.
 Insider Threat: A successful deployment of
antivirus and firewall software can be quite effective
for this issue.

References
Carlin, S., & Curran, K. (2013). Cloud computing security. In Pervasive and
Ubiquitous Technology Innovations for Ambient Intelligence Environments (pp. 12-
17). IGI Global.
Hashizume, K., Rosado, D. G., Fernández-Medina, E., & Fernandez, E. B. (2013).
An analysis of security issues for cloud computing. Journal of internet services and
applications, 4(1), 5.
Rittinghouse, J. W., & Ransome, J. F. (2016). Cloud computing: implementation,
management, and security. CRC press.
Xiao, Z., Song, W., & Chen, Q. (2013). Dynamic resource allocation using virtual
machines for cloud computing environment. IEEE transactions on parallel and
distributed systems, 24(6), 1107-1117.