What you need to know about firewalls. There are over 131,000 ‘ports’ in the internet where hackers can connect to today. These ports act like doors, and if they’re not protected, intrusive elements like viruses, malware and spyware can break in easily, exposing not just your computer to possible damages, but also risking all your personal and sensitive information stored in your computer. This is the very reason why you need to equip your PC with a firewall.
In building construction terms, the word ‘firewall’ refers to a fire-resistant wall that subdivides buildings from on another. Its main function is to stop the spread of fire from one building to the next. When used in computer terms, ‘firewall’ is a program that stops the communication between your computer and other computers from the internet. Blocking all internet connections would not be sufficient and is impractical in protecting your PC from potential harm. The idea is to choose which communication lines you want to receive information from. With this, firewalls include filters, just like construction firewalls have access doors.
Where Should I Put My Firewall?
It can be software installed in your unit, or a hardware box (separate from your internet modem or router). Popular security packages available in the market today already include a firewall.
A hardware firewall, on the other hand, blocks any potential harm before even reaching your PC, saving your computer from running its resources. This reduces the risk of compromising both the firewall itself and the computer, as sophisticated viruses and malware out there try to disable every security system running in your PC. Well. of course, because of its added protection feature, a hardware firewall is significantly more expensive than its software counterpart, and they can be hard to configure and maintain, especially if you’re not familiar with it.
Is Having 2 Or More Firewalls Better Than 1?
Genuine Windows users can get Firewall packages for free. However, these firewalls only examine incoming communications to your computer from the internet. If it fails to stop viruses and spywares from breaking in, there’s nothing much this software can do, leaving your outbound communications unexamined and unfiltered. This can cause your PC to be good source of infection, impacting every connection line you’re in to, such as security system and internet connection.
Also, using two or more firewalls is not recommended for regular use, as it can cause conflicts and cost more processing power for the computer. Thus, if your security software already includes firewall, turn off your Windows Firewall.
If I’m Using WiFi, Do I Still Need A Firewall?
Of course. yes. As said in the first part of this entry, there are over 131,000 ports for these viruses to pass through, so whether you’re using Ethernet or WiFi, you definitely need a firewall.
Firewalls can give protection for specific areas of your computer. But you still need to take care of your computer by being cautious in surfing the web and conduct regular scanning to clean any suspicious threat to your computer.