May 31 2009
Firewall review- know the basic
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The good firewall should scan your PC’s port, track intruders, block malicious code, block banners and spyware. Ability to read bit pattern is crucial and must update regularly to detect new threats.
Are you brave enough to access the internet without a firewall? If so, then you probably belong to the group of people known as casual surfers, or those who are only online for a short while. This is because the longer your computer is connected to the Internet, the higher the chances are that your computer will be subject to the risk of a cyber attack.
• Port scanners that look out for unguarded ports, and help to send worms or Trojan horses to your computer, or take control of your computer.
• ActiveX Controls that install dialer programs.
• Data sniffers that specialise in stealing data from your cookies.
The main function of a firewall program is to protect your computer against attacks Trojan dangerous programs. However, in recent months, many manufacturers have made their firewalls into applications for complete computer protection.
Many personal firewalls now have the ability to block pop-up windows and
banners, disable dialers and disable Trojans before they even enter your system. The free personal firewall found inside Windows XP is not included in this comparison test because of its limited features and its shortcoming in not being able to block ActiveX controls, which are now considered a major source of security breaches. However, if just basic protection is what you are looking for, then you should look at the workshop for the freeware Sygate Personal Firewall.
ZoneAlarm Pro with Web Filtering:
The latest personal firewall offering from Zone Labs scores a narrow victory over Outpost Personal Firewall.
Outpost Personal Firewall 2.0: The Outpost Personal Firewall from Agnitum is our second choice, but only by a very slight margin. Like ZoneAlarm, it not only blocks cookies, banners, pop-ups and ActiveX, but also filters websites that have unsuitable content very effectively. The filters can be set manually for each application. IP addresses that do not include local IP’s can be set to only be allowed access at certain times, and can also be detected automatically by this firewall program. Professional users will like its complete set of features that come without the complexity of tedious individual configuration for each option.
The DNS cache feature, which retains the DNS addresses of websites, is a very useful feature that helps to improve your web surfing. During the test, however, the program managed to hang a PC that had an Audigy card and a FireWire card - but this bug should have been taken care of by now, though.
I hope that you will get what i try to say. This is a basic understanding of firewall technology and little bit example.
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