DefinePK

Abstract

The Internet and computer networks are exposed to an increasing number of security threats. With new types of attacks appearing continually, developing flexible and adaptive security oriented approaches is a severe challenge. This paper discusses the security of computing systems and shows how to protect computer-related assets and resources. The paper highlights different security threats and concerns across computer networks and shows how firewalls detect these threats. At the end, different firewalls like Packet Filtering, Application Gateways and Personal Firewall are summarized and compared according to different network scenarios. The paper also proposes a new framework for the vulnerability, threat management and safeguard of network environments.