Firewalls
Firewalls are security systems that monitor and control incoming and outgoing network traffic based on predetermined security rules. They act as a barrier between a trusted internal network and an untrusted external network, such as the internet. Firewalls can be hardware or software-based and can be configured to allow or block specific types of traffic based on the source, destination, and type of traffic. They can also be configured to perform deep packet inspection, which examines the contents of each packet to determine if it contains malicious content or violates security policies. Firewalls are an essential component of network security and are used to protect against unauthorized access, malware, and other cyber threats.
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