The Role Of Firewall In Network Security

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The Role Of Firewall In Network Security

INTRODUCTION

1) Firewalls are devices that take data requests and evaluate them against a specific set of rules.

Depending on if the request violates one of the rules a network administrator has programmed into the firewall, the device will either allow a request to proceed or reject the request. The right set of rules can keep hackers from scouting or attacking your network infrastructure by rejecting their incoming connections before they ever reach your router.

2) Windows prevent access restrictions by defining Private or Guest/Public Networks.

3) Windows automatically asks users to define these network settings.

3.1) What is the difference between Home or Work network? (http://windows.microsoft.com/en-us/windows-vista/how-is-a-network-at-home-different-from-one-at-work)

4) Windows provides detailed Firewall Security settings for users to refine it.

e.g. Windows Server 2012 comes with the Firewall Security settings for Wireless Connection turned off.

5) Besides software, firewall also exists in the form of hardware device.

Read further on Questions and Answers (Q&A) regarding Firewall, http://www.vicomsoft.com/learning-center/firewalls/

WHAT ROLES DO FIREWALLS & PROXY SERVERS PLAY IN NETWORK SECURITY?

Network security involves addressing threats both from outside the network and from within. This involves keeping hackers from probing or attacking a network over the Internet, and keeping infected computers from using their position on the network to let threats bypass external security. Firewalls and proxy servers play a number of roles in limiting access and refusing connections that could compromise network security.

Read further, http://science.opposingviews.com/roles-firewalls-proxy-servers-play-network-security-2630.html

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