Today, we
are going to talk about what is Firewall - What is the Firewall? All
human beings keep the attention of one thing in our mind, to do any small task
in our life, and that is "security" i.e. security. For people,
for the sake of their future, they already save money, so that when they need
money, they will not need to spread in front of anyone. For the protection
of their children, the parents live with them at every step. Bodyguards
are kept for the protection of big celebrities and ministers. " Law "
has been created to protect the people living in every country. Every
day on the outskirts of our country, the brave youth of our country give their
lives for the safety of all of us.
The life of
all human beings is in the form of security in some way, due to which we are
breathing peace. In the same way, the computer also requires protection so
that it can be avoided by virus and malware and all data kept in the computer
cannot be seen by any other unknown person. The name of that security is
" Firewall ". Those who use computers and the
internet, they have heard the name of the firewall. What is a firewall? Why is this
necessary? I am about to tell you about it today.
What is the Firewall?
A firewall
is a system to protect computers that protect all types of computers and its
networks from intruders, hackers, and malware. A firewall protects
our computer from aggressive software which secretly comes into our computers
and passes all the personal details to the hackers who send it to the software,
which raises a very bad fate.
Firewall There
is a kind of security plan that either remains as a software program or as a
hardware device, whenever our computer connects to the Internet, this same
firewall prevents the traffic coming towards our computer from coming
in. For example, let me tell you that whenever we go to a website using
the internet in Computer, or watch some videos, as well as download them, or
anything else on the internet, If working, then in this way, the traffic that
is coming towards our computer prevents the firewall, it creates a wall in the
computer's network all the way so that an unwanted software in the computer
comes in and install itself. Do not happen or Oi unwanted comes not in
files Computer gets to the attack because of the virus on Computer and all that
data you can delete.
Firewall
only gives the space for those other things which allow us to come to the user,
except that no malware or virus is allowed to come in. In the same way, if
our computer already has a virus and there are so many computers connected to a
network simultaneously, then even the firewall prevents a computer's virus from
going to other computers. This means that the Firewall works as a
protection from both sides.
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| What is a firewall and why is it Important? |
How many types of
firewall are - Types of Firewall in Hindi?
A firewall
is of two types, one is Software Firewall and the other
is Hardware Firewall.
1#
Hardware Firewall
Hardware
FirewallToday is presently present in all routers, whose work is to
prevent the virus from going from one computer to another computer. Let's
assume that 10 computers in one room are connected to the same network and the
router or modem being used on it has enabled Firewall, so all the computers
that are connected with that router It starts working firewall on its
own. Whenever anything is done on the internet through computers, the
firewall prevents computers from virus and malware. Every single request
that comes out of the computer comes out in the form of a data packet and the
network ID is attached to it, whenever the server responds to that request, then
the network ID comes in contact with that packet The firewall knows that the
data is correct.
The second
thing is that the firewall is that if a virus comes from anywhere in a
computer, then the virus gets out of the computer and it can not reach the
other computer, it also thinks the firewall keeps it well.
2#
Software Firewall
In the new
operating system of Windows Operating System such as Windows
7, 8, 10, Vista, XP, etc. A firewall is already inbuilt and remains by default
"on" so that the computer can be fully secure. You can also
change its settings in computers according to your needs. Apart from this,
too many antiviruses are also present on the internet such as Avast, McAfee, Norton, QuickHeal, etc.
All these work on the Firewall is the same. Whenever we install new
software or games in our computers, a popup box appears in our computer, asking
permission from the firewall user if you want to install this program in your
computer because Windows firewall blocked this program, so if
we want to tick that option, we can install the program. Software firewall
works in a similar way in computers and protects our personal data from hackers
and viruses.
Whether it
is hardware or software, it is very important to use a firewall in computers
because there are so many malicious sites on the internet who can steal the
data on our computer. I hope you have a firewall What is a Firewall in and why is
it necessary? It must have been understood. If you
have not used it on your computer yet, please do so and keep your computer
safe.
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this post with your Friends & Family.
Hello viewers my name is Debmalya Datta .I am a Btech(Bachellor of Tehnology) student of Computer Science and Engineering.I started this blog on 2018. In this website you can easily learn about how to make a good looking website,blogging tips and tricks, SEO ,Google Webmaster Tool,Photoshop,Designing,how to earn money from online easily,how to create new google adsense account,how to earn money from youtube, how to use amazon and flipkart affiliate marketing and many techy things.
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