15 interesting questions about Firewall

1. What is a firewall?

Firewall is a hardware tool or software that helps you avoid hackers, computer worms, viruses . when accessing the Internet. If you use a personal computer at home or you are a small business, using a firewall is the most important and effective way to protect your computer.

2. Why do computer users need a firewall?

- Without a firewall, when accessing the Internet, hackers will easily break into and steal your personal information. They can install passwords that destroy files or cause problems for your computer. They can also use your computer to spread viruses to other machines in the same system. Using a firewall will help you avoid the hassle, whether you access the Internet by any means - via modem, cable, or digital subscription (DSL or ADSL).

3. If I already have a firewall in my device, how do I start it?

- If you use Windows Vista or Windows XP, you have installed Sevirce Pack 2 (SP2) in your device:
+ Click Start, then click Control Panel
+ Go to Security Center, activate Windows Firewall
- If your Windows XP system is not preinstalled with SP2, you can download this program at www.microsoftupdate.com.
- If you use another Windows system such as Win2000, Win 98 ., you should buy software or hardware firewall outside and install it on your computer.
- If you are not sure if your computer has a firewall, you can go to Folder All Program to check. Click Start, then go to All Program, find out if the firewall program is installed. Firewall software often has names like McAfee, Symantec, Tiny Personal Firewall .

4. My Windows operating system does not have a firewall. What should I do?

- Old Windows operating systems such as Win 2000, Win Millennium Edition (Me) and Win 98 do not have the firewall installed. If you want to use this program, you can purchase it to install it on your device.

5. What effects does Windows Firewall have?

- Windows Firewall works to protect programs and information on personal computers from outside intrusion, especially when users access the Internet. Firewall keeps track of all the information coming from your computer and automatically protects them from viruses.

When necessary, the firewall will open the protection window and allow your computer to receive the required information, such as a web page that you clicked on the address. The information automatically sent to the computer does not require it will be blocked by firewall.

6. In addition to the firewall, what other protection measures are required?

- The firewall program cannot guarantee 100% security for your computer, but it is currently considered the most effective method. In addition to firewalls, you should use some additional protection methods, such as updating the operating system, installing antivirus software such as Windows Live OneCare, Antispyware .

7. Should I use a firewall if I have more than 1 computer at home and work?

- Candlestick. Because the virus can spread from one computer to another on the same system.

8. If my computer belongs to the company's host operating system, should I turn on the firewall?

- In this case, you should follow the requirements of the server operator. In some cases, the operating system will default to all computers in the system that cannot use the firewall program. If your personal computer really requires a firewall, please talk to the technical department to install the program separately.

9. Should I use both a hardware and software firewall on Windows XP operating system?

- Should not. Complex firewall software programs are not suitable for personal computers at home or small businesses but are only suitable for operating systems of large companies. Using both hardware and software firewall programs will make it difficult to access the Internet and other unexpected problems.

10. I am currently using Windows XP Home Edition. Is this operating system available with Internet Connection Firewall program?

- Yes. Both Windows XP Home Edition and Windows XP Professional are preinstalled with Internet Connection Firewall.

11. What can Windows Firewall resist?

- Windows Firewall acts as a program against computer worms. Computer worms are similar to viruses, but they work more independently and can be automatically infected without the help of other programs.

12. Windows Firewall can not resist what?

- Windows Firewall in Windows XP operating system cannot resist the following 3 viruses:

+ Viruses spread via email, such as Trojan viruses, often disguise utility software and the computer will be infected with virus as soon as users open or install these files.

+ Spam or programs pop-up

+ Paths to other unsafe wireless systems.

13. Does the firewall program protect the wireless system?

- The firewall can only protect a computer on a wireless operating system, but cannot protect a system. If you want to protect the whole system, you should use more cryptographic programs such as WPA or WEP.

14. I use a laptop connected to the company's server system that has a firewall installed. What should I do when traveling?

- You should always turn on Internet Connection Firewall when you access the Internet via modem or any other method when you travel to avoid virus spreading to the entire company's system.

15. Where can I find out detailed information about Windows Firewall and Firewall in general?

- Currently the website provides the most information about firewall, especially Microsoft. You can go to www.microsoft.com, then go to Protect your PC Support or Use the Internet Connection Firewall to find the necessary information.

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