Hence, to implement security for different divisions or subdivision, you will erect perimeters that can only be crossed by certain types of traffic in the form of Public network, Private network, and semi-private network.

Some of on the other hand will be openly accessible. For instance, some servers will need to be accessible by the employees. You will most likely identify different network segments with different security requirements while designing security for your network. In this context, the following section explains the imposition of policies measures of each term or principle of network security to protect information and systems. Network policies are, therefore, govern how a network should be implemented and configured to streamline employee’s operation in ordinary conditions as well as guides how to react during the occurrence of abnormalities. Security measures often restrict personnel in their operating practices and make some activities less convenient which results in a temptation to boost security regulations. The first step in enforcing policies is to define the policies that will be enforced. Ultimately to secure a network is to implement different layers of security so that an attacker must compromise two or more systems to gain access to critical assets. There is no definitive mechanism for protecting a network because any security system can be subverted or compromised, if not from the outside then certainly from the inside. This part will focus on best practices and methodologies of network security in the form of policies, instead of the actual implementation Network security policy The previous article dealt with data privacy and integrity norms, and in the continuation of this series, this article provides a complete understanding about how to impose network security policies onto devices, protocols, communication or else in generic and uniform manner. A policy should also be applied throughout the organization in a consistent manner and provide a reference for employees to operate their typical activities. A security policy designates an organization’s security controls, without specifying technologies, as well as offers high-level directives on acceptable and unacceptable actions to protect critical assets.

Networx security manual