Firewalls

    A firewall is a protector from unauthorized access that is between a computer and the internet. Based on one’s configuration, the firewall controls access to data through packet analysis. The firewall vehemently ignores information from unauthorized, unsecured, and unknown sources. A firewall can become encapsulated as hardware or software, the latter being a program installed on the computer or placed behind a router in the former.

 

What We’ll Discuss On This Article:

 
    Hardware Firewalls

These get mostly used in large companies and corporations where they get placed between the company’s internet connection and the router. They become designed to be optimal in their functionality and also not to consume too much computer resources. They are stand-alone but become mostly found in routers supporting broadband. They determine the destination and source of a

packet
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Quiz: What is a packet in IT?x

using its header as part of packet filtering. If the configuration settings allow the packet to filter through, it is approved or otherwise dropped. They are capable with minimum to no configuration.

 

    Software Firewalls

These are more common, easier, and cheaper to acquire and install. Software firewalls mostly get purchased by individual users and customizable like most software and could also include extra protection against worms and trojans. They are more user-defined and could even block malicious apps and set-up the safe sharing of resources. Additionally, they can filter the web and allow privacy tweaking. They are, however, marred with several malfunctions, including the following.

 

  • They consume a lot of computer resources.
  • They can cause compatibility issues with other software on the computer.
  • They are also significantly erroneous in the process of running.

 

Software firewalls mostly come packaged in several operating systems like Linux and Ms. Windows. Some can also get provided as part of a cloud computing service.

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David Maniahttp://maniainc.com
David Mania is an upcoming musician and blogger.
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