Types Of Firewall Security - PowerPoint PPT Presentation

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Types Of Firewall Security

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Firewall is a network that is used to block certain types of network traffic. It is basically a security system that is designed to protect untrusted access on a private network. Firewall forms a barrier between a trusted and an untrusted network. We are going to tell you the various types of firewall security in this PPT – PowerPoint PPT presentation

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Title: Types Of Firewall Security


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Types Of Firewall Security
iberrywifisecurity.com
91-8872372233
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What Is Firewall?
The word firewall means a network device that is
used to block certain types of network traffic.
Basically, firewall forms a barrier between a
trusted and an untrusted network.
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Types Of Firewall
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Packet Filtering Firewall
  • In this type of firewall, there are security
    rules that block traffic based on IP address and
    IP protocol.
  • Filtering Rules are based on information
    contained in a network.
  • Source IP address
  • Destination IP address
  • Source and destination transport level address
  • IP protocol field
  • Interface

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Stateful firewall
  • A Stateful packet firewall tightens up the rules
    for TCP traffic by creating a directory of
    outound TCP connections.
  • There is an entry for each established
    connection.
  • This is like a packet filtering firewall, however
    it is more astute about monitoring dynamic
    associations.

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Deep packet inspection firewall
Deep packet inspection is a form of computer
network packet filtering that examines the data
part of a packet as it passes an inspection
point, searching for protocol non-compliance,
viruses, spam, intrusions, or defined criteria to
decide whether the packet may pass or if it needs
to be routed to a different destination, or, for
the purpose of collecting statistical information
that functions at the Application layer of the
OSI model.
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Application-aware firewall
  • Similar to deep packet inspection, except that
    the firewall understands certain protocols and
    can parse them, so that signatures or rules can
    specifically address certain fields in the
    protocol. 
  • The flexibility of this approach to computer
    firewall protection is great and permits the
    signatures or rules to be both specific and
    comprehensive.

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Application Proxy Firewall
  • An application proxy goes about as a go-between
    for certain application activity, (for example,
    HTTP, or web, movement), catching all
    solicitations and approving them before passing
    them along.
  • For an application proxy firewall to be viable as
    PC firewall insurance, it must have the capacity
    to comprehend the protocol totally and to uphold
    hindering on infringement of the protocol.

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Contact Us
iberrywifisecurity.com
91-8872372233
/iberrywifiservices
/iberrysecurity
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