Do all firewalls have a separate function? They function the same in their basic modes, but they have differences which make worth noting. Most firewalls are the same. I first want to give information about what firewalls are exactly. Then, in showing the difference between three firewalls so you may see what is wrapped in these network defense programs.

When anyone remotely can access your computer at any time, you don?t have a firewall. It seems time after time; I am lurking around malware removal forums here at WhatTheTech or GeeksToGo, to find that a lot of users are missing a firewall. Even basic firewall protection is better than nothing.

I was on my XP test box a few weeks ago, and turned off the firewall and started browsing bad websites, and started downloading neutral programs. By the time I was done with that, I had acquired such a mess, as nine Trojans, and 4 spyware programs. One of the Trojans was a downloader of malware. My machine was not shot, as I was able to remove/delete all of the threats. A normal user cannot do this, and needs the assistance of malware experts who can help remove it.

After I had removed the malware, I restarted my computer to find it back to normal. It was fine, and running smoothly. I turned on Comodo Firewall, and again browsed bad websites, and downloaded bad programs. First of all, the bad programs would not start, because Comodo had a lock on them. Whenever I went to double-click on one, an error popped up, and said: ?you do not have sufficient privileges to start this program.? The title-bar was labeled as ?Comodo Internet Security.? The firewall event log had over 20 events of just those ten minutes of browsing bad websites. 20 events of threats trying to enter my system, I knew Comodo protected me.

Although hardware firewalls are much better, software firewalls are what I am talking about today.
We will start with the tested best of the best. Tallemu Online Armor. The personal edition is just as good as the Pro. Features boasted include keylogger protection, autoruns management, mail and web filter, anti-spyware, and HOSTS and DNS checker. The only reason why Online Armor did not score a 100% on the tests is because they were not able to stop viruses from executing via internet query.

Then, Comodo Firewall is the next impressive piece in software firewall technology. Its technology is much different than most firewalls. It boasts its features as Defense+ HIPS protection ? which alerts you when an application is not on the list of good applications, Defense+ is also considered Anti-spyware, highly extended firewall policy. Although they offer antivirus protection, the firewall policy stops viruses in their tracks. The only reason that Comodo did not score a 100% was because of the inability to stop bots from being queried on a machine.

The last one I will review is ZoneAlarm. ZoneAlarm boasts full stealth mode, protection from hijackers, OS file protection, MD5 (program key) spoof protection, rootkit detection, and dynamic inbound/outbound protection with hyper threat checking.

What all three of these have in common is they deal with threats. They all have a specific protection that is different than each other. Tallemu Online Armor, and Comodo firewall both had anti-spyware protection, but ZoneAlarm did not. ZoneAlarm has rootkit detection, whereas Tallemu and Comodo do not. Firewalls are one of your best Operating System Defense Weapons. You can be secure from most online threats by using a firewall. The three reviewed above, are the most protective and the highest rated. All three protect from severe threats, and all three passed rigorous testing on blocking threats.