Importance Of Firewall

FIREWALL INTRODUCTION:- Firewall is a program which prevents unauthorized access to network system. Firewall works as a blockade through which the traffic goes either of the direction must pass. Firewall technology was first emerged in late 1980 's when internet was still struggling in terms of connectivity, globally.

It can be found as both software solution and as a hardware appliance. The only difference is that the hardware firewall acts as a DHCP server to the network whereas many OS have built-in software firewalls to protect user against virus, malware etc.

Importance of Firewall : if someone using a computer or having a small network one must track threat by hackers who can hack their computer data /network very easily there are plenty others ways they get infected some of them are: -PC can get infected from VIRUS, WORM, Malware etc.

-Theft or disclosure of Personal data

-Interception of data

These are some causes of not having a firewall protection in PC HOW FIREWALL PROTECT PC:-

Any hacker want to access your PC will have to face the firewall and the firewall will either deflect the attacks as well as gives warning about it. Firewall basically works as a filter between computer/network and internet There are several ways by which firewall filter information. For home use, firewall easily operate and save your computer from malicious activity. There are two ways by which firewall protects either it allows all traffic and stops the desired malicious content or it stops all traffic unless malicious content is