Remember Me
forgot your password?

How Firewalls Work

At their most basic, firewalls work like a filter between your computer/network and the Internet. You can program what you want to get out and what you want to get in. Everything else is not allowed. There are several different methods firewalls use to filter out information, and some are used in combination. These methods work at different layers of a network, which determines how specific the filtering options can be.

Firewalls can be used in a number of ways to add security to your home or business. Large corporations often have very complex firewalls in place to protect their extensive networks. On the outbound side, firewalls can be configured to prevent employees from sending certain types of emails or transmitting sensitive data outside of the network. On the inbound side, firewalls can be programmed to prevent access to certain websites (like social networking sites). Additionally, firewalls can prevent outside computers from accessing computers inside the network. A company might choose to designate a single computer on the network for file sharing and all other computers could be restricted. There is no limit to the variety of configurations that are possible when using firewalls. Extensive configurations typically need to be handle and maintained by highly trained IT specialists, however.

For home use, firewalls work much more simply. The main goal of a personal firewall is to protect your personal computer and private network from malicious mischief. Malware, malicious software, is the primary threat to your home computer. Viruses are often the first type of malware that comes to mind. A virus can be transmitted to your computer through email or over the Internet and can quickly cause a lot of damage to your files. Other malware includes Trojan horse programs and spyware. These programs are usually designed to acquire your personal information for the purposes of identity theft of some kind. There are two ways a firewall can prevent this from happening. It can allow all traffic to pass through except data that meets a predetermined set of criteria, or it can prohibit all traffic unless it meets a predetermined set of criteria.

Comodo Firewall Pro uses the latter way to prevent malware from installing on your computer. This Free Firewall Software, from a leading global security solutions provider and certification authority, use the patent pending “Clean PC Mode” to prohibit any applications from being installed on your computer unless it meets one of two criteria. Those criteria are a) the user gives permission for the installation and b) the application is on an extensive list of approved applications provided by Comodo. With this feature, you don’t have to worry about unauthorized programs installing on your computer without your knowledge.

Comodo Firewall Pro is rated as Top Firewall recommended for both beginners and advanced users. It has a number of unique features including “Defense +,” an advanced Host Intrusion Prevention system (HIPS), which prevents changes to critical system resources. This software is highly customizable, so that you can adjust it to suit your specific needs.

Vijayanand

Vijayanand working as a online marketing co-ordinator in ID Theft team in Comodo, a leading internet security provider, offers a real time Identity Theft Prevention and Identity Fraud restoration services among others.

Rate this Article: 0 / 5 stars - 0 vote(s)
Print Email Re-Publish

Add new Comment



Captcha

  • Latest Security Articles
  • More from Vijayanand

Some Latest Information about mini sd 8 gb

By: Beerbohm Max | 04/01/2010
Whenever consumers visit the shop for buying handset always take care of buying memory card suitable according to the handset. In the same way mini sd 8 gb provides the user more space for their daily purposes in the market. Also the mini sd 8 gb helps in storing large amount of data, music and software applications on their phone.

Download LEGO Indiana Jones 2 The Adventure Continues PSP and PSP GO Game

By: Jack Corner | 03/01/2010
Are you seeking to download LEGO Indiana Jones 2 The Adventure Continues PSP game? Do you want to know how and where you can download the game for less than $0.01? Do you want to get access to more than 150,000 PSP game titles for unlimited downloads? This article will show where and how you can download the newest and your favorite PSP games. Visit PSP GO Download Center

DVR vs VCR: A Battle in the Security and Spy Equipment Industry

By: Vellard | 01/01/2010
The DVR seems to be the technology that wins the match. There is no room for melancholy in the ever-evolving world of security and spy equipment. You can keep up with the surveillance technology at Vellard. Visit now their website at www.vellard.com.au.

How to Delete Antispyware Shield Pro, Quickly and Easily. Uninstall this Spyware Before Certain Destruction!

By: Bob Walker | 31/12/2009
One of the top concerns I have while browsing the internet is what files are secretly being transferred via websites of questionable content. Antispyware Shield Pro is an example of a virus that can be installed in this stealth manner through a Trojan. Once installed, this malware will attempt to trick you into purchasing a "full version", which will do nothing but sap you of your money.

Uninstall Malware Defense Easily - How To Remove Malware Defense Quickly

By: Bob Walker | 31/12/2009
What's the deal with Malware Defense? Is it legitimate or is it a scam? If you're familiar with viruses, then you know that this software is malicious. It's the kind that will try to corrupt your entire system, block your programs, and scare you into purchasing what it claims as "full protection". It provides nothing of the sort. Its cousins are FakeAlert and AntiMalware spyware. You will want to get rid of this spyware immediately, because if you do not, you will be harrassed with fake warnings

Get In Touch With Norton Antivirus

By: James | 31/12/2009
Antivirus has become one of the most essential software these days. Norton antivirus is considered as the most reliable antivirus software. There are many people who want to contact Norton antivirus before buying one. It can be quite easy to get in touch with them either through website or via phone.

Rising demand for Investigating services

By: Sleuth India | 30/12/2009
The changing life style reveal the secret. Life today has gained such a tremendous pace that people rarely have time for themselves. This ultra-busy lifestyle coupled with extremely tense job requirements make people very impatient and intolerant. No wonder smallest of issues today lead to major differences.

Advice On Protecting Your Netbook

By: Mark Walters | 30/12/2009
Useful information and advice on netbooks. Find out how to make a netbook as safe and secure as possible.

Best Free Firewall Software

By: Vijayanand | 12/09/2008 | Security
You don’t have to spend a fortune to protect your home or business network from hacker intrusions. Comodo Firewall Pro is a free firewall software program that offers all of the security features of expensive and best firewall programs and then some. Comodo Firewall Pro provides complete protection from a variety of malware (malicious software) programs including spyware, Trojan horses, viruses, worms and more.

What a Firewall Will Do for You in Your Fight Against Spyware

By: Vijayanand | 12/09/2008 | Security
Identity theft is at a record high, and a significant number of identity theft cases are traced back to spyware. Spyware is a type of malicious software (also called malware) that hackers use to invade unsecured computers and networks. It is typically downloaded inadvertently from the Internet without your knowledge by clicking on a link or some other seemingly innocuous action.

Great Balls of Firewall

By: Vijayanand | 12/09/2008 | Security
When it comes to firewalls, there are several different types available. They are differentiated primarily by the methods they use to filter data. An in-depth understanding of firewalls requires an understanding of the four basic categories they fall into—packet filters, circuit level gateways, application level gateways and stateful inspection firewalls. Firewall products can use one or more of these methods.

How Firewalls Work

By: Vijayanand | 12/09/2008 | Security
At their most basic, firewalls work like a filter between your computer/network and the Internet. You can program what you want to get out and what you want to get in. Everything else is not allowed. There are several different methods firewalls use to filter out information, and some are used in combination. These methods work at different layers of a network, which determines how specific the filtering options can be.

What's All This I Hear About Firewalls?

By: Vijayanand | 12/09/2008 | Security
A firewall is a system that prevents unauthorized access to a private network. Firewalls are extensively used by businesses, corporations and the government to protect against potential hackers. They act as a barrier between a private network and the Internet. Anything that goes into or out of the network must pass through the firewall. The firewall examines each message to make sure it meets the specified security criteria before passing it through. Just like a literal firewall, a computer fire

Top 5 Problems With Ecommerce Websites

By: Vijayanand | 12/09/2008 | ECommerce
E-commerce sites offer huge potential for online sales, but you can’t just throw up a website and expect customers to flock to your product. Too many e-merchants fail to recognize the importance of providing the best e-commerce site possible. With some simple (and some not-so-simple) adjustments, an e-commerce site can improve its profitability significantly.

How Ecommerce Merchants Can Improve Conversion

By: Vijayanand | 12/09/2008 | ECommerce
In e-commerce, the conversion rate applies to how many visitors to a website actually become customers and buy something. Many merchants concentrate on attracting traffic to their website but fail to focus enough attention on increasing their conversion rates. High conversion rates translate into real profits. Here are some tips for how you can improve the rate of conversion on your website.

The Difference Between Trust Marks

By: Vijayanand | 12/09/2008 | ECommerce
Third-party trust marks help to lessen the anxiety of online shoppers. With identity theft crimes at an all-time high, many online shoppers are reluctant to provide their personal information over cyberspace. Smaller merchants are the most harmed by online shopper concerns because they do not always have build it brand recognition and trustworthiness of larger merchants. Third-party trust marks verify the security of e-commerce sites so that customers can rest easy transmitting their sensitive i

Submit Your Articles Free: Signup
Article Categories




Use of this web site constitutes acceptance of the Terms Of Use and Privacy Policy | User published content is licensed under a Creative Commons License.
Copyright © 2005-2008 Free Articles by ArticlesBase.com, All rights reserved. (0.05, 1, w2)