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  1. What is a firewall? - Cisco

    A firewall is a network security device that monitors traffic to or from your network. It allows or blocks traffic based on a defined set of security rules.

  2. What Is Network Segmentation? - Cisco

    Some traditional technologies for segmentation included internal firewalls, and Access Control List (ACL) and Virtual Local Area Network (VLAN) configurations on networking equipment.

  3. What Is Network Address Translation (NAT)? - Cisco

    They can be used to perform NAT and firewall actions, depending on configurations. ALGs that are configured to perform NAT and firewall actions can: Allow client applications to use …

  4. Cisco Adaptive Security Appliance (ASA) Software

    It delivers enterprise-class firewall capabilities for ASA devices in an array of form factors - standalone appliances, blades, and virtual appliances - for any distributed network environment.

  5. How to Setup a Firewall in 6 Steps for Your Small Business

    Learn how to setup a firewall with ease. Get your firewall setup and configured today so your first line of defense is in place and protecting your business.

  6. What is network security? - Cisco

    A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.

  7. How to explain Source IP Address, Destination IP Address

    Jun 6, 2010 · These three terms are common for network & firewall guy. However others who are not working in this are normally doesn’t really know what is the meaning of this terms.

  8. What is a Router? - Definition and Uses - Cisco

    Embedded firewall and content filtering software provide an additional protection from unwanted content and malicious websites without affecting your online experience.

  9. Services - Cisco

    Services from Cisco Customer Experience can help you get the most from your technology investments with guidance and data-driven insights.

  10. Firewalls A firewall is a system or group of systems that manages access between two or more networks