Firewall
Software that can stop malware from entering a network, computer, or device.
A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. The primary function of a firewall is to create a barrier between an internal network and the wider internet, allowing only authorized traffic to enter or leave the network.
There are various types of firewalls available in the market, including software firewalls and hardware firewalls. Software firewalls are installed on individual computers and are used to block or allow incoming and outgoing traffic on that specific computer. Hardware firewalls are physical devices that are usually installed at the point where the local network connects with the wider internet.
The security rules that guide a firewall’s functioning can be configured in several ways, including blocking or allowing traffic based on IP addresses, protocols, or specific applications. A firewall can also detect and prevent certain types of attacks and breaches, like DDoS attacks or malware infections.
In conclusion, firewalls play a vital role in ensuring the security of networks and data. They help prevent unauthorized access to the network, block malicious traffic, and reduce the risk of data breaches.
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