A firewall is a network security system or shielding layer that lies between the internet and the computer networks. A firewall typically set up a barrier between a trusted network and an untrusted network. An Internet firewall is a device or software which is designed to protect your computer from data and viruses that you do not want.
1. Software Firewall :
Software firewall is a special type of computer software runs on a computer/server. It’s main purpose is to protect your computer/server from outside attempts to control or gain access and depending on your choice of software firewall. Software firewall can also be configured for checking any suspicious outgoing requests.
2. Hardware Firewall :
It is physical piece of equipment planed to perform firewall duties. A hardware firewall can be a computer or a dedicated piece of equipment which serve as a firewall. Hardware firewall are incorporated into the router that is situated between the computer and the internet gateway.
Difference between Hardware and Software firewall :
|Software Firewall||Hardware Firewall|
|Software Firewall operates on the system.||Hardware Firewall do not operate on the system.|
|Configuration of software firewall is easy.||Configuration of hardware firewall is not easy.|
|It is more expensive.||It is cheaper than software firewall.|
|It is flexible i.e., you can choose which application has to be installed.||It is not flexible like software firewall.|
|It is installed inside the individual system.||It is installed outside the system.|
|It protects the one system at a time.||It protects a whole network at a time.|
|It makes the performance of computers slows down.||It doesn’t affects the performance of the computer.|
|It has needed to be installed on every individual system on a network.||It needs only one hardware to be installed for a whole network.|
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