In the real world, the word of firewall is a fireproof wall that is made to stop the spread of fire from one part of a building to the other. In the Internet world a firewall has the same meaning as it aims to stop the spread of viruses and attacks that from entering the computer network in your home or office.
Because the attack is a threat that appears on the Internet then you should not need a company that working in the fire protection wall. Every computer that connected to the internet should installed this software. You will feel safe because you have protect your personal data and financial information such as your credit card and bank account numbers from being shared with every crook on the internet.
Here are some questions you should consider before you select the firewall to your PC:
1. What features do I need?
2. Do I want to protect from viruses, Trojan horses and worms?
3. Whether the risk of using the software to access the Internet automatically?
4. How much money do I spent for the firewall solution?
Here are common features of which are available in almost all software-based fire wall software:
Inbound filtering - to protect users or programs that is not known who would like to access your PC.
Outbound filtering - Protect your PC when it will send information to the Internet without permission from you.
Application integrity verification - to check each program you run does not do anything dangerous that they should not be doing.
Data encryption - automatically protect any sensitive data you send.
Stealth mode - Hide the fact that you have a PC connected to the Internet so that hackers can not see you.
Pop-up ad blocking - those annoying ads.
Cookie blocking - prevents web sites send cookies without your permission
Spyware protection – to block dangerous spyware on your PC.
There are many software-based firewall program that can be downloaded from the internet. Most of them are free so you can test each of the software and select which are best for you. Even if you do not need experts to install and set up a firewall, there are some adjustments and settings to be done.
Good firewall software comes with instructions and the guidance from that products have been available at their website. If you see when there are some softwares that should work but stop after you install a firewall then you must make changes in the configuration of the firewall that will enable the program to work again.
If you find that there is no way to run these programs work through the firewall then this is an indication that you should try the other "fire wall" program.
Be sure to check the program and firewall software before you give up and replace the program with the fire wall the other.
