Network Security

Network Security

Introduction

Network security is the process of preventing and detecting unauthorized use of your network. Prevention measures help you to stop unauthorized users (also known as “intruders”) from accessing any part of your computer system.
Detection helps you to determine whether or not someone attempted to break into your system, if they were successful, and what they may have done.

Need of Network Security :-
We use Network for everything from banking and investing to shopping and communicating with others through email or chat programs.
• Although you may not consider your communications “top secret,” you probably do not want strangers reading your email. using your computer to attack other systems, sending forged email
on your Network, or examining personal information stored on your Network.
• Protecting data from being read by unauthorized persons.
• Preventing unauthorized person from inserting or deleting messages.
• Verifying the sender of each message.

Security Technologies:-

With the rapid growth of interest in the Internet, network security has become a major concern to companies throughout the world. The fact that the information and tools needed to penetrate the security of corporate networks are widely available has increased that concern.
Because of this increased focus on network security, network administrators often spend more effort protecting their networks than on actual network setup and administration. So there are many security technologies which are generally used for security purposes.

Types of Network Security :-

• Fire-Wall
• Virtual Private Network
• Security Socket Layer
• Work Station Security
• Network Device Security
• Wireless Network Security
• Operating System Security
• Physical Security