what is a firewall
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Answer:
A firewall is a firewall
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A firewall is a system which prevents from unauthorised access.
Explanation:
- We can implement the firewall in both hardware and software.
- It prevents the unauthorised person to access the private network.
- It is used for the filtering of the information entering the Network.
- It blocks unwanted traffic.
- It is essential for everybody ranging from normal network user or a big organisations.
- It has a list of rules for determining what to block and what to allow these are called firewall rules and the list in which they are resent is called Access control list.
Types of firewall:
- Host based firewall
- Network based firewall
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