Firewalls protect networks from unauthorized access from "summary" of Computer Networking Beginners Guide by Russell Scott
Firewalls play a crucial role in safeguarding networks against unauthorized access. They act as a barrier between a secure internal network and external networks like the internet. By monitoring incoming and outgoing network traffic, firewalls can determine whether to allow or block specific data packets based on pre-established security rules. Firewalls operate at the network level, examining data packets to ensure they meet the criteria set by the network administrator. This process helps prevent malicious entities from gaining entry into the network and compromising sensitive information. By filtering out potentially harmful traffic, firewalls help maintain the integrity and confidentiality of the network. One of the key funct...
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