cyberya

  Network security 1.Firewall  • A firewall is a security system that controls the flow of incoming and outgoing network traffic based on a set of rules and restrictions. Firewalls are an essential element of an organization's security infrastructure and are used to protect networks and systems from unauthorized access and malicious attacks. Types of Firewalls •  Network Firewalls:  Network firewalls are the most common type of firewall and are used to protect an entire network or organization. They are typically installed at the network perimeter and can be either hardware-based or software-based. •  Host-based Firewalls:  Host-based firewalls are installed on individual computers or servers and are used to protect those specific systems. They are typically used in addition to network firewalls to provide an additional layer of security. •  Application Firewalls:  Application firewalls are used to protect specific applications or services, such as a web server or a database. They

  Common Vulnerabilities and Exposures (CVE)   is a standardized list of vulnerabilities in computer systems, software, and hardware. The list is maintained by the MITRE Corporation, a non-profit organization that provides research and development services to the government. The goal of the CVE list is to provide a common language for identifying and describing vulnerabilities in a consistent and standardized manner, to help facilitate communication and collaboration among cybersecurity professionals and researchers. Each entry on the CVE list includes a unique identifier, a brief description of the vulnerability, and information about the affected systems or software. The list is intended to be comprehensive and includes vulnerabilities that have been discovered and disclosed by researchers, as well as vulnerabilities that have been discovered through other means, such as security breaches or code audits. The CVE list is widely used by organizations, researchers, and cybersecurity pro