Windows firewall – The complete Definitive Guide

Windows firewall

Windows firewall, we all heard this keyword when people talk about security in Windows. So exactly what is it (a wall of wire)?

If you don’t know the answer, or even if you have a basic knowledge about it then trust me, you are at right place.

Windows firewall

The firewall ride is going to begin, here you will find the most amazing use of Windows firewall and basics of Windows security system. Let’s begain….

What do you mean by Windows firewall?

In easier words, you can imagine firewall as a gateway from where data and information are passed with security checks.

It is a hardware or software device that is designed to protect your private network or resources from miscellaneous attacks of hackers and virus by denying their access to your network.

Firewall not only denies access to malware and other unsavory traffic. It is also used to controls the data that is to be sent out from your network.

It’s a two-way protection tool. A firewall doesn’t allow confidential information like your passwords, bank account details and blue prints of upcoming projects to be sent out without your permission.

Windows Firewall

The soul of above paragraphs is that Windows firewall is used to protect your private network from the outside networks and inside information leaks by using different layers of security.

May be, you have doubts in your mind related to the necessity of firewall on your computer. For clarifying of these doubts and craving a clear image of firewall, we will gonna look at benefits and functions of Windows firewall, the necessity of


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Learn about functions and benefits of Windows Security Wall

Basic and most important functions of Windows security framework

>> Close down a port completely

Normally companies setup their firewall to allow incoming traffic get in through port 80 (access point for the visitors), it is a standard port for web servers. If any visitors try to enter in with any other port without permission, a firewall will automatically close that port.

>> Open a port to only specific IP addresses 

Firewall opens the different port for a different user, visitors enter with different port and companies official employee’s (persons with admin name and password) enters with a different port.

>> Block (blacklist) specific IP address

A firewall also blocks IP addresses in case the traffic is coming from a untrusted source or having misleading factors. 

>>Stateful Packet Inspection

A firewall usually keeps the port closed to untrusted traffic sources. In case the user invites another computer, then the firewall will open a particular port specified by the user. It happens like this, the first user launches an application, the application reaches out to the server, then the server responds and it allows an invited computer to pass through that specific port.

>> Windows firewall Open ports only during specific time frames

>> Many Windows Security systems were also included VPN services.


Different protection level offered by Windows firewall

Firewall offers a different level of protection based on the location of computer network that you use.

>> Protection of wireless network

It will show a notification when an intruder attempt to access your network, it shows a pop- up warning window that shows someone is trying to access your network take action (block it).

>> Access to the internet and network

It specifies which installed programs on your computer can access Internet or network.

>> Protection against intruders

It prevents your network and resources from hackers attacks that are trying to access your computer to carry out certain actions.

>> Blocks

The firewall also blocks down the access of those programs and servers which are specified as misleading traffic’s carriers in your local network or the Internet. It also blocks down the access of other computers that try to connect to programs installed on your computer.

>> Definition of rules

This defines rules that you can use to specify which connections you want to allow, the ports and zones through which the connection can be established.

Till now, I am trying to crave clear detailed images of Windows firewall and I hope I did it successfully. Now things are almost going to finish yet there is another topic which is very important to cover here. Check it down below…

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Different types of Windows firewall

The NIST (National Institute of Standards and Technology) 800-10 divides or approved Windows security wall in three basic types. Still here is a hope for the fourth and fifth type of Windows firewall that is important to cover here (we don’t want to present garbled facts or information in front of you) drag down to check them.

>> Packet filtering firewall

>> Circuit level gateways

>> Stateful inspection firewall

>> Applications level gateways ( Proxy )

>> Multilayer inspection firewalls


NOTE – I hope all these information provided here will fulfill your queries. For any doubts and suggestions regarding Windows Firewall contact us by commenting down below.

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