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What is network security? Start with these FAQs

In this compilation, learn what network security is, as well as how it differs from cybersecurity, common -- and potentially confusing -- technologies, threats and more.

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What role does state play in networking?

When it comes to understanding state from a networking perspective, knowing the difference between stateful vs. stateless firewalls is a crucial starting point.

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Use this BGP tutorial to learn how the protocol works

Border Gateway Protocol is the complex routing protocol that literally makes the internet work. This tutorial walks you through how BGP functions and offers troubleshooting options.

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Acacia buy makes Cisco a bigger player in DCI market

Cisco plans to buy Acacia for $2.6 billion. Cisco's acquisition will make it a direct supplier of optical interconnects for the data centers of carriers and service providers.

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Networking Basics

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    domain name system (DNS)

    The domain name system (DNS) is a naming database in which internet domain names are located and translated into internet protocol (IP) addresses.

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    What role does state play in networking?

    When it comes to understanding state from a networking perspective, knowing the difference between stateful vs. stateless firewalls is a crucial starting point.

  • Get Started

    Use this BGP tutorial to learn how the protocol works

    Border Gateway Protocol is the complex routing protocol that literally makes the internet work. This tutorial walks you through how BGP functions and offers troubleshooting options.

View All Get Started

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