In the same way, clouds and cyber-physical systems are going to stay for a long time. In light of these new paradigms, it is very important to think about security again, because both bring new problems. Clouds break down the idea of zoned networks, which means that traffic that used to be internal now goes through the Internet. Computers that have physical parts are called “cyber-physical systems.” This makes them vulnerable to cyber attacks, which is a risk because a lot of physical parts were made to be separate. Cyber-physical cloud computing makes it even more important to have a well-thought-out security plan. Firewalls are one of the most important parts of network security, and many cloud service providers offer them. However, there is a question about how well they protect the network. Cyber-physical system integration is one of the main goals of this paper, so we look at the firewall offerings of five of the biggest cloud providers.
Introduction
As time goes on, cloud computing is becoming more and more common in both the business world and the consumer world. If you work for a company, you’re more likely to use the cloud than you are at home. For example, Dropbox1, Spotify2, or Google Docs3 are all cloud apps that people use in their private lives. Cloud computing is now a multi-billion dollar business with still high annual growth [2]. It has changed the way we think about computing: It is now a utility, like water or electricity, and businesses and individuals can pay for the amount of work they need on a pay-as-you-go basis.
Almost at the same time, there was a growing trend toward cyber-physical systems. They connect the physical world we live in with the world of computing and communication that has been separate for a long time [3]. Based on the idea that physical things should become smarter, a number of new ideas have been proposed, such as a “smart grid,” “smart production,” or “smart living.” These ideas are meant to be more efficient, handle an energy shortage, be more environmentally friendly, or just be easier to use.
Clearly, it didn’t take long to combine the concepts of cloud computing and cyber-physical systems. Cyber-physical systems didn’t have to give up the flexibility of clouds, and clouds didn’t have to stay away from the physical world because they were already connected to information technology’s communication infrastructures like the Internet.
Background
In this section, we give you some background on cloud computing, its service models, and some of the biggest cloud computing providers. We also talk about cyber-physical systems and their benefits in general, as well as a type of firewall.
Cloud computing and service models are two things that have changed
Cloud computing is a way to make it easy and convenient for people to get access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be quickly provisioned and released with little management effort or service provider interaction. Five things: on-demand service, wide network access, resource pooling, and quick elasticity are all part of this type of service. Clouds, on the other hand, come in many different forms and are broken down into three service models [5]. The service model gives different responsibilities to the customer and the cloud provider in different ways: With Software as a Service, the customer can use a provider’s applications in the cloud through a web browser or a certain client. With Platform as Service, the cloud provides a platform that customers can use to run their own applications. They also give the customer resources where she can run her apps and choose her operating system. Infrastructure as a Service providers do this, though.
Advantages and disadvantages of cyberphysical systems
Physical systems have been separate from computer and communication networks for a long time [3]. Physical systems like the electric power grid, cars with mostly mechanical parts, and production systems for making things were some of them. Even though these systems had some basic communication or computing abilities, like ripple control to turn street lights on and off, or engine control units to control the amount of gas in the engine, they are still thought of as stand-alone. Computing and communication were part of the same system. In the same way, computers and communication systems like telephony and the Internet were separate from each other. “Immaterial” goods like information or money were what they were made for. They did not have an effect on the real world. The development of embedded systems, real-time systems, and control, on the other hand, has made it easier to connect physical systems with the world of computing. This has opened up new ways to monitor, coordinate, and control. Cyber-physical systems are systems that connect both the physical world and the cyber world. These systems are called cyber-physical systems because they can connect both worlds. A body sensor network can sense your vital data for medical reasons. The smart grid is the next-generation power grid. Modern factories use a lot of information technology. Modern transportation systems can communicate with each other. Fully automated and connected buildings are also examples [3, 8]. Multidisciplinary: Cyber-physical systems use a lot of different fields, such as mechanical engineering and electricity and medicine and bio-medical engineering, as well as computer science and telecommunications.
Source: fortinet network security , fortinet network firewall