Day 5
Firewalls
Key Topics
Firewalls are a crucial aspect of network security, acting as gatekeepers between networks or between a network and the Internet. They enforce security rules and policies, determining which traffic is allowed or denied. Today, we review the operation of firewalls, focusing on different types, their functionalities, and some examples in Cisco and Linux environments.
Firewall Devices
Firewalls monitor and control incoming and outgoing network traffic based on predetermined security rules. They can block specific ports and protocols, thereby preventing ...
Get 31 Days Before your Cisco Certified Support Technician (CCST) Networking 100-150 Exam: A Day-By-Day Review Guide for the CCST-Networking Certification Exam now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
