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What is the use of a firewall and how it can be implemented in Cyber Security?

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A firewall is a security system used to control and monitor network traffic. It is used for protecting the system/network from malware, viruses, worms, etc., and secures unauthorized access from a private network.

The steps required to set up and configure the firewall are listed below: 

  • Change the default password for a firewall device.
  • Disable the remote administration feature.
  • Configure port forwarding for specific applications to function correctly, such as an FTP server or a web server.
  • Firewall installation on a network with an existing DHCP server can cause errors unless its firewall’s DHCP is disabled. 
  • Make sure the firewall is configured to robust security policies.
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