It is an amazing world, the internet. People roam here for fun, perform business, shop online and also get attacked sometimes just like the real world. But still there is gap in the thinking; people are not able to take this as a real world. The problem on the internet is that people are really unaware of the problems that can happen while they are online. They think that nobody will come out of the computer screen after all. Thus many a times people tend to neglect the dangers of this world. They do not worry about the security of their PCS while using the internet.
There are hackers and malicious programmers all around the internet. They are always in search of a pray that they can attack on. Thus if you are an alert user then you must keep yourself protected from these internet dogs who are always in search of causing trouble. The best way to stay safe is to have firewall installed on your computer. These firewalls will protect you from the unwanted and unauthorized access on the internet.
A Firewall is not always a software program; it can also be a hardware that keeps you safe by acting as a doorkeeper to your computer. The basic function of a firewall is to monitor the activity of internet traffic coming in and going out of your computer. They do not allow any virus, spy ware or malicious software to enter your computer. Hence you can all them the watchmen at work keeping track of the intruders.
There are firewalls that can warn you about the continuous attempts to hack your computer from any foreign agent. These are known as packet filters. You can set the packet filter on and off for the users as per your requirement. If you know that a particular user is genuine then you can set the firewall to allow that user before checking.
Every filter has a way to correlate addresses. The addresses used in internet world are known as the IP address. It is a 32 bit address which is unique for every user. The firewall can thus maintain a database of the IP address for reference. This is how actually a firewall works by keeping the track of IP addresses of the internet users. Some firewalls can also show you the IP address of the incoming party and hence you can track that person with the help of IP tracking if needed.
by Camila 1 year ago
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