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Firewalls. by Taras Tyrsa , IO-63. Contents. What is firewall? Functions of firewalls Types of firewalls How does it work? Myths about firewalls. What is firewall?. Functions of firewalls. Blocking incoming traffic depending on source Blocking based on website content

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Firewalls


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    Presentation Transcript
    1. Firewalls by TarasTyrsa, IO-63

    2. Contents • What is firewall? • Functions of firewalls • Types of firewalls • How does it work? • Myths about firewalls.

    3. What is firewall?

    4. Functions of firewalls • Blocking incoming traffic depending on source • Blocking based on website content • Allocating internal resources • Blocking selected outgoing traffic • Making reports on all network traffic, network activity etc.

    5. Types of firewalls • packet filter • application gateway • circuit-level gateway • proxy server

    6. Types of firewalls • Hardware • Software

    7. How does it work?Packet filter

    8. How does it work?Application gateway

    9. How does it work?Circuit-level gateway

    10. How does it work?Proxy server

    11. Myths about firewalls • Myth 1: A firewall is always hardware

    12. Myths about firewalls • Myth 2: A firewall can protect you from all possible threats

    13. Myths about firewalls • Myth 3: A firewall protects all possible Information Exchange

    14. Myths about firewalls • Myth 4: Even if a threat is completely new, a firewall can still protect you against it

    15. Myths about firewalls • Myth 5: A firewall is enough, who needs an anti-virus program?

    16. The End