Computer Firewall

Computer Firewall a very important tool which a common user have but don’t know how to use it. Computer is indispensable need of human. Computer firewall is an important security tools provided to protect computer form external threats likes virus, malware, spyware etc. As we have internet as major information provider you can find absolutely correct data with instances. As everything has its pros and cons so internet can’t be an exception. They are some infractors which upload viruses, malware, spyware, worms which can cause critical problem for your computer. As for everything in this world we all are dependent on internet so we are more exposed to these threats. But Computer firewall acts like shield to protect your computer.

Computer firewall:-

Computer firewall can be hardware or software based which will provide a protection shield against spywares and provide secured network connection. It acts like bridge between the computer and external network which is intended to provide reliable and secure network connection. It monitors the incoming and outgoing data packets and permits or restricts data packet transmission according to some specified rules.

The computer firewall performs the following functions:

1.    Packet filtering:- Transmission of data occurs in form of fixed size manageable packets. The computer firewall permits or restricts packet transmission whether they are following certain specified rules also known as protocols. 

2.  Circuit Relay:- It is use to check whether the connection established between your computer and other network is valid or not according to certain specified rules or protocols. If connection is valid then opens a session for data exchange.

3.     Application gateway: It is also called as proxy firewall. In this type

Windows operating system provides computer firewall known as Windows firewall. It is recommended to turn on firewall but it slows down computer due to this some of the user and is getting exposed to threats floating on the internet. There are some well renowned companies which are providing windows firewall like Norton, Mcfee, and AVG etc. But sometime user find difficult to manage it so for this purpose you can use tools which can be used to manage your computer firewall  ease of making your computer secure like Windows Optimizer.

·         You have an option to enable and disable firewall on specific networks as per your need.

·         You have a liberty to grant or restrict the applications. You can edit the list of Allowed programs according to your need but it is always advised to restrict the applications disallowed by computer firewall.

·         You can also change the communication rules and the type of network on which these rules mare applicable.

·          You are allowed to make inbound rules and outbound rules to filter incoming and outgoing data packets to make a more secured connection for data transfer.    

·         A special option is provided which can revert all changes made by you and delete all your computer firewall settings since windows was installed.

These types of tools comes with a user guide which have complete explanation of all technical terms and processes used in Computer firewall in plain English so that a non- technical user can easily understand the sheer importance of computer firewall. This also protect computer from undesired and danger malwares.