Is it OK to have free firewall system?

The answer is always depend on your knowledge about computer technology especially computer networking and operating system knowledge and skills. This knowledge needed to ensure that you can set any options offered by the firewall system. Without good settings, firewall system is just like an old shark without teeth. The teeth that enable you to defend your system is the settings. If your settings are good, you can bite any incoming bad traffic and take them down.

If you feel that you don’t have enough knowledge, skills and experience; I suggest you to forget the idea to use free firewall system. Free firewall system is not for people who don’t have to time to learn something in their computing hours. Look deeper into your computing behavior, if you still need assistance just to do ordinary computing works such as type something using word processor software like Open Office, then you definitely don’t fit to use free firewall system. Although most free firewall systems are good software to have but you don’t have any power to use it.

If you choose to buy proprietary software, you can get good software, good support, and good updates. This updates needed to make sure that your firewall can handle any new network security exploits. Good support will always needed when you in trouble, of course at daily basis you won’t always needed but when in trouble, good support can eliminate your headache. Most proprietary software is good software because it developed by good developer. Their company history can tell you much on how the do their business and support their customers. It’s rare case which good firewall developer will fall down their quality by over night. So, secure your system now.

What is computer firewall?

Computer firewall, other may also said as computer network firewall is a software that run as background process that will filter any unwanted incoming or outgoing traffic sent to and from your computer. Computer network already used by human couple decade ago; and the most familiar network protocol is TCP/IP. This TCP/IP protocol works using ports. These ports are like doors in your house, when you open the doors, any good or bad wind can enter your house. The same analogy like TCP/IP ports, when you open or close some ports, you can receive bad or good incoming traffics. TCP/IP networks divide any communications between computers into data packets; these data packets received and assemble by your computer.

If you receive bad incoming traffic, your computer will be in danger because these data packets can be changed into dangerous virus, spyware, adware or any malware that can ruin your computer.

Many modern firewall systems especially firewall for desktop might also have process and application monitoring. When the firewall found any suspicious application, it may alert you to decide further actions, or might be just terminate it according to the previous behavior.

When you decide to combat with virus, spyware, adware and many malware; you will always need good coded firewall. This firewall can work hand in hand with installed anti virus, anti spyware and anti adware that will increase your computer security in maximum level.