NETWORK IN SECURITY

Definition

The specialist area of network security consists of the provisions made in an underlying computer network infrastructure, policies adopted by the network administrator to protect the network and the network-accessible resources from unauthorized access, and consistent and continuous monitoring and measurement of its effectiveness (or lack) combined together.

Network architecture

Network architecture is the design of a communications network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation.

Basic Terminology

• Topology
• Host 
• Link 
• Node

Network Security Control

     • Encryption

     • Strong Authentication

     • IPSec, VPN, SSH

     • Kerberos

     • Firewall

     • Intrusion Detection System (IDS)

     • Intrusion Prevention System (IDS)

     • Honeypot