When your network is connected to the Internet, lots of security issues bubble to the surface. You most likely connected your computer network to the Internet which means that your network’s computer may get out to the Internet. However, your computer internet connection is actually a 2-way road. It does not just allows your computer network users to move outside the bounds of the computer network to gain access to the Internet, and also allows other people to step in and even access your computer network system.
The globe is full of online hackers who are searching for a computer networks system just like yours to break into. Some may only for fun , or some may to steal your current customers’ credit card data or coerce your email server into sending a large number of spam emails.
How to use a firewall?
A firewall is actually a security your router that sits between the Internet and your computer network system by using a single-minded task: protecting against hackers from getting to us. The firewall is actually acting as a security guard between the Computer network system and your local area network. All of the network traffic must pass through the firewall, which will help prevent unauthorized access to the network.
What is built in Windows firewall?
Windows XP and Windows Vista include a built in firewall that provides standard packet filtering firewall protection. In most cases, you better use the dedicated firewall router because it can provide better security features than the Windows firewall. The Windows firewall is suitable for home networks or very small office networks.
Below here are the steps to activate the firewall
For Windows XP and Windows Vista:
1. Click Start and then click Control Panel.
2. Click the Windows Firewall icon.
3. Select the On (Recommended) option.
4. Click OK to save the settings and now the firewall is enabled.
For Windows 7:
1. Click Start and then click Control Panel.
2. Click the Windows Firewall link.
3. Click the Turn Windows Firewall On or Off link.
4. Click the Turn On Windows Firewall for Home or work (private) network location settings.
4. Click the Turn On Windows Firewall for Public network location settings.
5. Click OK to save the settings and now the firewall is enabled.
|
