Network security systems

Network security is any system, device, or action designed to protect the safety and reliability of a network and its data by guarding against attacks and providing security against unauthorized use of data.

What Is Network Management? - Cisco

Network security system is a computerized or physically distributed system of protection designed to keep a network protected from hostile intrusion. A network security system includes one or more computers, software, or hardware systems that are connected to a network. The information security systems in use are configured to protect information by limiting access to and tampering with it, and are designed to limit malicious users from accessing the data on the network. The system may be contained in a computer, a software program, or a hardware component, such as a router. Network security provides the user access to a protective protection that is not capable of performing the duties of a physical firewall, including protection of access points to an electronic or physical network, Internet filtering, Internet connectivity, and so forth.

Network security protocols are implemented into the data centers of a company to secure data at rest in a physical network. These protocols are designed to ensure that physical machines on the network and remote servers and hardware components are protected from outside attacks while data at rest is allowed to move freely. Network security standards establish security protocols to ensure that data is properly secured across the network at rest.

Network security hardware is hardware that is designed to be connected to a network and provides protection against intrusion, this includes the use of SD-WAN solutions. Network security devices are network devices or computer systems that are designed to provide protection from an internal threat, such as hackers, terrorists, or other malicious actors. Network security devices provide protection at rest and during operation, but are often programmed or configured with both hardware and software components to implement security.

Network Security Architecture

The following sections provide a general description of the application security layers in an infrastructure-as-a-service (IaaS) cloud infrastructure.

In the IaaS cloud architecture, applications reside on a set of micro or nanostructured services that are tightly coupled with cloud computing services. The IaaS cloud architecture requires the use of IaaS components for support of the cloud infrastructure, services, and application architectures. IaaS components may be distributed throughout the application stack to meet the specific needs of each application. IaaS applications are commonly distributed as cloud applications that are deployed in applications with end user profiles or as micro-service applications that provide a single service to all applications in the stack.

IaaS applications are typically run on a virtual private server (VPS) architecture. The VPS architecture allows application developers to get a start with building an application, and takes advantage of the many security features of virtualization to achieve a high level of security. The VPS architecture has many advantages over virtual machines (VMs). First, it enables you to take advantage of modern security and reliability technologies. For example, virtual machines run an operating system, which typically has complex code that is difficult to protect. A VPS architecture contains code that can be safely hardened, enabling you to run a more secure application.