Cloud Computing is an Internet-based client-server approach to storing, managing and processing data. Key features of cloud computing include on-demand self-service service, broad network access, a resource pool, rapid elasticity and measured service. It provides online business applications and processes, unlike resources such as software and storage equipment, which are “traditionally” housed on site. The three main categories of cloud computers are Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS). A DDoS is an attack in which hundreds or thousands of computers or other Internet-connected devices (a “botnet”) are hijacked to strike against a system, network or application. When an organization is compromised by a DDoS attack, its servers are overwhelmed by the flood of botnet “strikes” and their services are no longer available. The ZTNA architecture is a security image work that works on an adaptive trust model where trust is never implicit and where access to applications and data is granted on a “need to know” basis defined by granular guidelines. ZTNA architecture has become increasingly popular in recent years due to the digital activation of companies and the migrate of employees from the corporate network. To succeed in this new model, organizations must make their systems, services, APIs, data and processes accessible anywhere, anytime and from any device on the Internet. The ZTNA architecture allows businesses to do so safely by providing accurate and contextual access if necessary, while protecting services from attackers. The term cloud often refers to the Internet, which supports the provision of on-demand services to users from a provider`s servers, not their own.
Providing cloud services allows for easy and flexible access to applications and services with fewer resources. The Software Perimeter (SDP) is a cloud-based approach to secure access. SDP communicates the connection between users and internal applications without placing users on the network. While the traditional security perimeter has been developed to protect internal services from external threats, the widespread use of SaaS and iaaS applications expands the scope to the Internet. The software perimeter allows organizations to provide perimeter in the cloud so they can protect assets anywhere in the data center or in public or private clouds.