Today we are going to talk about What is Firewall – What is Firewall in Hindi, All of us humans keep one thing in our mind for doing any big or small work in our life and that is “security”.
For example, people save money in advance for their future, so that when they need money later, there will be no need to reach out to anyone. For the safety of their children, parents stay with them at every step. Bodyguards are kept for the protection of big celebrities and ministers.
For the safety of the people living in every country”law” has been made. Everyday on the border, the brave soldiers of our country give their lives for the safety of all of us.
The life of all of us human beings is in one way or the other under the circle of security, due to which we are breathing in peace. In the same way, the computer also needs a security so that it can be kept safe from virus and malware and all the data kept in the computer cannot be touched by any other unknown person.
The name of that security isFirewall,
Those who use Computer and Internet more, they must have heard the name of firewall. Today I am going to tell you about what is Firewall.
What is Firewall?
Table of Contents
Firewall Computer security is a system that protects all types of computers and their networks from intruders, hackers, and malware.
Firewall protects our computer from aggressive software that secretly enters our computers and transmits all the personal details to the hackers who send that software, which takes a lot of wrong advantage of it.
Firewall There is a kind of security scheme that either lives in the form of a software program or in the form of a hardware device, so whenever our computer connects to the internet, then this firewall prevents the traffic coming towards our computer from entering. .
As an example, let me tell you that whenever we go to any website using internet in computer, or watch some videos and download them as well, or apart from all this, anything on the internet. If we are working, then whatever traffic is coming towards our computer, the firewall stops it.
He erects a wall all around in the network of our computer so that no unwanted software gets installed in the computer automatically or no unwanted files come in the computer, due to which virus attacks on the computer and that Delete all the data.
Firewall gives space to only those things which we allow users to come, apart from this no malware or virus is allowed to come inside.
In the same way if in our computer virus already exists And many computers in a room are connected together in a network, even then the firewall prevents the virus of one computer from going to other computers. This means that Firewall works for protection from both sides.
Explain what is firewall?
A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predefined security rules. A firewall typically establishes a barrier between a trusted internal network and an untrusted external network, such as the Internet.
Types of Firewall – Types of Firewall in Hindi
There are two types of Firewall, one is Software Firewall and the other is Hardware Firewall,
1# Hardware Firewall
Hardware Firewall Nowadays, routers are already present in all, whose work is to prevent virus from going from one computer to another. For example, suppose 10 computers in a room are connected to the same network.
And there firewall has been enabled in the router or modem that is being used, then firewall automatically starts working in all the computers that are connected with that router. Whenever any work is done on the internet through computers, then there firewall keeps the computers safe from virus and malware.
Every request that comes out from the computer comes out in the form of a data packet and the ID of the network is also attached to it, so whenever a reply to that request comes from the server, the same network ID comes associated with that packet. The firewall gets to know that that data is correct.
Apart from this, if any other packet tries to enter inside with that packet, then the firewall stops it outside.
The second job of a firewall is that if a virus enters a computer from anywhere, then that virus cannot escape from that computer and reach another computer, the firewall also takes care of it well.
2# Software Firewall
new generations Windows Operating System In Windows 7, 8, 10, Vista, XP etc. Firewall is already inbuilt and it remains “on” by default so that the computer can be completely secure.
If you want, you can also change it according to your need by looking at its settings in Computers. Apart from this, many antivirus are also present in the internet like avast, McAfee, norton, Quick Heal For example, the work of firewall is the same in all these.
Whenever we install new software or games in our computers, a popup box appears in our computer, in which the firewall asks for permission from the user whether you have to install this program in your computer because windows firewall has blocked this program.
So if we want, we can install the program by ticking that option. Software firewalls work in the computer in a similar way and keep our personal data safe from hackers and viruses.
Firewall how does it work ,
firewalls Act like a filter between your computer/network and the Internet. You can program what you want to get out and what you want to get in and nothing else will be allowed.
Firewalls can be used in a number of ways to add security to your home or business.
“Firewall” also allows only authorized and data packets going according to the rules made in that network and maintains network security by preventing Unauthorized Access. Thus firewall acts like a barrier.
Who prevents unauthorized access to computer systems?
Firewall prevents unauthorized access to the computer system.
What is the main function of firewall?
The main function of a firewall is to prevent unauthorized data packets from entering private networks by filtering incoming data packets from the public Internet.
Can firewall exist as hardware and software?
Firewall can be hardware or software or a combination of both.
What did you learn today?
whether hardware or software firewall in computers It is very important to use because there are many malicious sites on the internet that can steal data by entering our computer.
hope you What is Firewall and why is it important? Must have understood. If you have not used it in your computer till now, then definitely do it and keep your computer safe.