An open-source extendable, highly-accurate and security aware simulator for cloud applications
Andreas BrokalakisNikolaos TampouratzisAntonios NikitakisIoannis PapaefstathiouStamatis AndrianakisApostolos DollasMarco ParacchiniMarco MarconDanilo PauEmanuele Plebani
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Abstract:
In this demo, we present COSSIM, an open-source simulation framework for cloud applications. Our solution models the client and server computing devices as well as the network that comprise the overall system and thus provides cycle accurate results, realistic communications and power/energy consumption estimates based on the actual dynamic usage scenarios. The simulator provides the necessary hooks to security testing software and can be extended through an IEEE standardized interface to include additional tools, such as simulators of physical models. The application that will be used to demonstrate COSSIM is mobile visual search, where mobile nodes capture images, extract their compressed representation and dispatch a query to the cloud. A server compares the received query to a local database and sends back some of the corresponding results.Abstract: The cloud computing has completely changed the IT infrastructure and also the businesses associated with it. Unfortunately, the demand for cloud infrastructure is growing rapidly, so is that the energy consumption of information centers. Here is when the green cloud computing comes into play. Green cloud computing refers to the environmental benefits of switching your IT services to the cloud. it's also benefits of green cloud computing together with the uses cloud hosting services. Keywords: Green cloud computing, Network, Green information, technology.
Green Computing
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Cloud Computing has now become a base technology for various other technologies including Internet of Things, Big Data Technologies and many other technologies, the responsibility of Cloud become critical in case of real time applications where the cloud services are required in real time. Delay in the response from Cloud may lead to serious consequences even loss of lives where the processes data from cloud must reach within predefined time interval. The performance of Cloud has experienced delays with the current infrastructure due to multiple issues in Traditional Cloud Network Model. The Paper suggests a proposed architecture Cloud Mini Data Centers simulated using Cloud Analyst to minimize the delays of Cloud Service delivery. The paper also simulate traditional cloud Network model using Cloud Analyst and provides a comparative study of both models.
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education of cloud engineers will be crucial for the continued development of cloud technologies. We have developed an open-source software platform called edubase Cloud for education. The platform has multi-cloud architecture. In this paper, we discuss how edubase Cloud provides an alterable cloud platform and how effective it is for educating cloud engineers.
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The proper education of engineers will be crucial for the continued development of cloud technologies. We have developed a cloud called edubase Cloud for information technology education. In this paper, we discuss how edubase Cloud supports cloud educational materials through a case study and how effective it is for educating cloud engineers.
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This chapter covers the free and open source cloud computing technology and its application in Web-based IT education. It discusses the difficulties in teaching online IT courses. One of the technologies that can be used to overcome these difficulties is cloud computing. This chapter focuses on cloud based online teaching infrastructure created with free and open source cloud computing. It provides some strategies in developing various cloud based computer labs for hands-on practice required by IT courses. A case study is used to illustrate the use of the free and open source cloud technology in e-learning.
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We present a view of the emerging cloud market and the role and impact of cloud broker organizations in a Hybrid Multi Cloud Environment. As the cloud market matures, the number of clouds consumed by the Enterprises will multiply. In such a scenario, it becomes increasingly complex for an Enterprise to manage a multi cloud environment. In this paper we present how a cloud broker organization can inject itself between the cloud provider and cloud consumer organizations and provide brokerage services for cloud consumers. This paper will also briefly explain how traditional service organizations are transforming themselves into a cloud broker by investing on cloud specific IP's and management frameworks.
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From Book:
Is This Book for You?
This book's target audience is person who wants to get an interactive database-based Web site up and running without spending a whole bunch of money on a large stack of books and software. That person might be a technically competent Linux user who is not necessarily a Perl or a CGI whiz; a graphic designer, with a technical bent, who wants to build a Web site without becoming a certified computer whiz; or an MCSE who has heard rumors that there might be another way to do things.
Up to now, these folks would have had to purchase four or five thick books and wade through them, picking out knowledge needed to accomplish necessary tasks. It's likely they would accomplish this in a less than optimal way, picking up some things and missing others, revamping and redoing as they learn new things without being aware of security considerations necessary to keep their site and computer safe. The goal of this book is to summarize much of information about Open Source in one place and to do so in a manner that will get prospective Web developer up and running safely and efficiently, including pointers to other resources when it becomes necessary to have more knowledge than provided here.
Our target audience, ideally, would have some familiarity with Unix, some sort of modern programming language (C, FORTRAN, Perl, Pascal, C++, Javamost anything will do), and HTML. The scope here, and sheer constraints on its size, force us to limit explanations and assume some background knowledge; we touch on a lot of things, enough so that you ought to be able to ask right questions on a search engine. If you don't have any Unixexperience, or if you are not a seasoned programmer, this book can still be useful, with motivation and, perhaps, purchase of other computer books.What It Will Do
In this book, we introduce you to pillars of LAMPLinux, Apache, MySQL, and Perl and PHPwith mod_perl, Embperl, Mason, and WML tossed in for good measure. We are biting off a lot with this book, and this is what we intended to do. We want to cover as much ground as possible and present you with various approaches for programming a Web site with Open Source products. The goal is to point out part of each of these Open Source approaches that provides most functionality.
Another goal is to make you aware of current techniques and standards: what is easily possible, what might be possible with more work, which tool is appropriate for which task. Just as important is how to discern things you need from those you don't, or don't need just yet. Not least of all is how to do these things in as secure a fashion as possible. After all, you are opening up your box to world with these techniques and should be wary of those with impure motives.
Based on experience, we believe that 80 percent of utility of any complicated tool is a result of knowing 20 percent of uses of that tool, whether that tool be software, hardware, mechanical, or electronic. Swiss Army knives are excellent and versatile tools, but most of time, you just use blade or screwdriver.
The purpose of this book is to introduce you to that 20 percentthe blade and screwdriverthat opens up most functionality and to make you aware of remaining 80 percent so that you can use other tools when appropriate. And, to teach you to not use blade as a screwdriver.
Four Parts
The book is divided into four parts:
Part I, Structural: Linux, Apache, MySQL, Perl - structural system foundations on which LAMP is built, and other programs run.
Linux is operating system this is all based on. We'll touch only lightly on Linux because it's a big subject, but also one that doesn't need to be dealt with much after it's installed.Apache is Web server software that serves Web pages up to clients, and decides how requests for documents, forms, and so on, will be processed. Chapter 1 talks about basics of configuring and setting up Web site.MySQL is an SQL database program. It is the world's most popular Open Source Database (it says so on their Web site).Perl is programming language of choice for interacting with text files, shell scripts, and a million other things. (Python is similar to Perl in functionality; however, we chose Perl for our purposes because we know it better, and like it.)
Part II, Static: WML - a set of programs which facilitate building and managing large-scale static Web sites using HTML files.
Part III, Dynamic: CGI and mod_perl - programs with which to build dynamic Web sites.
CGI is tried-and-true way of generating dynamic content.mod_perl is a better, faster and stronger way of generating dynamic content; mod_perl combines two pillars of Open Source: Apache and Perl.
Part IV, Embedded: SSI, Embperl, Mason, PHP - embedding programs within HTML pages.
SSI is built into Apache. Its job is to preprocess HTML files, turning SSI directives into HTML text; it allows Web programmers to embed executable code into HTML files.Embperl and Mason are Perl modules for building embedded Web content.PHP is another way to embed executable code with HTML files. PHP does what Embperl and Mason do, just differently.
So why have so many choices? Read on, gentle reader, and you will discover that a myriad of choices is Open Source way!
Does This Free Software Come with .docs?
Of course, with free software, there's free documentationsee www.linuxdoc.org and httpd.apache.org/docs/, to name two. The ultimate documentation, source code, is available to anyone. (Thus, Open Source joke, Use source, Luke!) Because of large community of developers and users, there are many newsgroups and discussion forums in which it is likely that someone else has had same problem as you and has posted a solution. Search using Google (www.google.com) and its interface to USENET archive (groups.google.com).
If you've installed Linux from a distribution, much of documentation is likely sitting on your hard drive. In an ideal world, you would just read itthat's what we did. Excellent resource though it is, it leaves something to be desired as a learning method. Much of it was written for reference, not instruction. Some of documentation has not been updated along with software. (Hey, these folks work for free. In any case, this is a problem to which closed-source software is not immune.)
The Old Bait and Switch
For all our talk of being self-contained, realistically, two books that you can't escape having handy are Hacking Linux Exposed and Unix System Administration Handbookor , more generically, a book on security and another on system administration. These two are our favorites (hereafter known as HLE and USAH). Each of these subjects is much larger than can be covered here, and both are crucial and unavoidable subjects (but also fun). Get them, read them, grok them.
Companion Web Site
In course of this book, you'll be shown examples of how to do all things we discuss on an active Web site (http://www.opensourceWebbook.com/) so that you can see code and results, and also be pointed to additional resources. We're striving to be self-contained, but like books, and often tell you which other ones you might want to look at. The entire Web site can also be downloaded from http://www.opensourceWebbook.com/sourcecode/.
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Cloud Computing is a very fascinating concept these days, it is attracting so many organizations to move their utilities and applications into a dedicated data centers, and so it can be accessed from the Internet. This allows the users to focus solely on their businesses while Cloud Computing providers handle the technology. Choosing a best provider is a challenge for organizations that are willing to step into the Cloud Computing world. A single cloud center generally could not deliver large scale of resources for the cloud tenants; therefore, multiple cloud centers need to collaborate to achieve some business goals and to provide the best possible services at lowest possible costs. However a number of aspects, legal issues, challenges, and policies should be taken into consideration when moving our service into the Cloud environment.
Cloud service provider
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Education of cloud engineers will be crucial for the continued development of cloud technologies. We have developed an open-source software platform called edubase Cloud for education. The platform has multi-cloud architecture. In this paper, we discuss how edubase Cloud provides an alterable cloud platform and how effective it is for educating cloud engineers.
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Cloud computing is one of the most popular topics in the IT industry and is recently being adopted by many companies. It has four development models, as: public cloud, community cloud, hybrid cloud and private cloud. Except others, private cloud can be implemented in a private network, and delivers some benefits of cloud computing without pitfalls. This paper makes a comparison of typical open source platforms through which we can implement a private cloud. After this comparison, we choose Eucalyptus and Wavemaker to do a case study on the private cloud. We also do some performance estimation of cloud platform services and development of prototype software as cloud services.
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