Computer Science, asked by crop38, 1 year ago

How Get a hardware or software firewall.?

Answers

Answered by choudhary21
0
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We highly recommend all computer users have a firewall solution.⚠️

There are two ways a firewall can protect your computer and network.⚠️
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⚠️Hardware firewall⚠️ - A hardware firewall is a physical device that is connected to your network.

Often many users who have a home network can use their network router as a firewall solution.

A good example of a network security device with a firewall and other security options is the ZyXEL ZyWALL (shown right).

⚠️Software firewall⚠️ - A software firewall is a software program that you install on your computer to helps protect it from unauthorized incoming and outgoing data.

Keep in mind that a software firewall is only going to protect the computer on which it has been installed.

Additionally many antivirus scanners include their own version of a firewall program. See the antivirus section on this page for more information.

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✌️Important Information ✌️

⚠️If you are running any version of Microsoft Windows after XP there is a firewall build into your operating system⚠️
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Answered by chAnjani
0
firewall is a protective system that lies, in essence, between your computer network and the Internet. When used correctly, a firewall prevents unauthorized use and access to your network. The job of a firewall is to carefully analyze dataentering and exiting the network based on your configuration. It ignores information that comes from an unsecured, unknown or suspicious locations. A firewall plays an important role on any network as it provides a protective barrier against most forms of attack coming from the outside world.

Firewalls can be either hardware or software.

The ideal firewall configuration will consist of both. In addition to limiting access to you computer and network, a firewall is also useful for allowing remote access to a private network through secure authentication certificates and logins.

While many people do not completely understand the importance and necessity of a firewall, or consider it to be a product for businesses only, if your network or computer has access to the outside world via the Internet then you need have a firewall to protect your network, individual computer and data therein.

Hardware Firewalls

Hardware firewalls can be purchased as a stand-alone product but more recently hardware firewalls are typically found in broadband routers, and should be considered an important part of your system and network set-up, especially for anyone on a broadband connection. Hardware firewalls can be effective with little or no configuration, and they can protect every machine on a local network. Most hardware firewalls will have a minimum of four network ports to connect other computers, but for larger networks, business networking firewall solutions are available.

A hardware firewall  uses packet filtering to examine theheader of a packet to determine its source and destination. This information is compared to a set of predefined or user-created rules that determine whether the packet is to be forwarded or dropped.

As with any electronic equipment, a computer user with general computer knowledge can plug in a firewall, adjust a few settings and have it work. To ensure that your firewall is configured for optimal security and protect however, consumers will no doubt need to learn the specific features of their hardware firewall, how to enable them, and how to test the firewall to ensure its doing a good job of protecting your network.

Not all firewalls are created equal, and to this end it is important to read the manual and documentation that comes with your product. Additionally the manufacturer's Web site will usually provide a knowledgebase or FAQ to help you get started. If the terminology is a bit too tech-oriented, you can also use the Webopedia search to help you get a better understanding of some of the tech and computer terms you will encounter while setting up your hardware firewall.

To test your hardware firewall security, you can purchase third-party test software or search the Internet for a freeonline-based firewall testing service. Firewall testing is an important part of maintenance to ensure your system is always configured for optimal protection.

Software Firewalls

For individual home users, the most popular firewall choice is a software firewall. Software firewalls are installed on your computer (like any software) and you can customize it; allowing you some control over its function and protection features. A software firewall will protect your computer from outside attempts to control or gain access your computer, and, depending on your choice of software firewall, it could also provide protection against the most common Trojanprograms or e-mail worms. Many software firewalls have user defined controls for setting up safe file and printer sharing and to block unsafe applications from running on your system. Additionally, software firewalls may also incorporate privacy controls, web filtering and more. The downside to software firewalls is that they will only protect the computer they are installed on, not a network, so each computer will need to have a software firewall installed on it.

Like hardware firewalls there is a vast number of software firewalls to choose from. To get started you may wish to read reviews of software firewalls and search out the product Web site to glean some information first. Because your software firewall will always be running on your computer, you should make note of the system resources it will require to run and any incompatibilities with your operating system. A good software firewall will run in the background on your systemand use only a small amount of system resources. It is important to monitor a software firewall once installed and todownload any updates available from the developer.


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