You spend lot of time on Internet, most of the time you browse through the Web. For your Data Protection Firewall is a good choice. You can use a Firewall to protect your home and office network from those offensive Web sites and all potential hackers.
A Firewall is a barrier that keeps all those destructive forces away from your computer. That is why it is called a Firewall. A Firewall is a program or a hardware device which filters the information that is coming to your private computer system or network from Web.
Firewalls use any one or more of these three methods to control the traffic that is flowing in and out of your network:
• Packet filtering - Packets that is small chunks of data are analyzed against a set of filters.
• Proxy service - Information from the Internet can be retrieved by Firewall and can then be sent to the requesting system and vice versa.
• Stateful inspection – This is a newer method that does not examine the contents of each packet but it instead compares certain key parts of this packet to a database of trusted information. Information that is traveling from inside the firewall to outside is monitored by specific defining characteristics, it is then that the incoming information is compared to these characteristics. If this comparison yields a reasonable match, the information will be allowed through. Otherwise it will be discarded.
One of the best things about Firewall is when you consider it from a security standpoint it can stop anyone from outside to log onto your computer. Keep going with firewalls all the way.
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