What is Firewall
#Firewall defination
1. A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.
2. A firewall is a one kind of device which replaced between trusted & untrusted network.
3. A firewall can be established between LAN network and WAN network, its depends on your requirement.
4. Using firewall we can prevents unauthorized users to access the network.
5. A firewall makes connection table but router doesn’t make connection table.
6. We can replace to firewall in the place of router.
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