Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( 
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
National Initiative for Cybersecurity Careers and Studies
Explore the use of zone-based firewall on a Cisco router, why to use zones, using zone pairs, and how to configure zone-based firewall. The concept and configuration of self zones is also covered.
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