Windows 7 firewall or free alternative

[FFCookie]

I want to know determine the type of firewall that is best suited to our needs, I need to answer the following questions.

1. How many computers will use the firewall?
2. What operating system do you use? (It may be a version of Microsoft Windows, Macintosh or Linux). I am using windows 7. Please help.

[Eric B]

An inexperienced computer users at risk by connecting to the Internet. Use a firewall to reduce these risks. Installing a firewall is the first step toward to navigate more safely on the Internet. You can further improve the security of your computer by keeping your software updated, your antivirus software subscription, and using antispyware software. For more information, see Protect your computer.

[Glenny]

You can customize four settings for each type of network location in the Firewall Windows. To find these settings, follow these steps:
1. To open the Firewall Windows, click, Then click Control Panel. In the Search box, type firewall, and then click Firewall Windows.
2. In the left pane, click Enable or Disable Firewall Windows. If you are prompted for an administrator password or confirmation, provide the password or confirmation.

[JonathanD]

A firewall system does of course not absolute security, quite the contrary. Firewalls offer protection to the extent that all communications to the outside going systematically through them and they are properly configured. Thus, access to the external network by bypassing the firewall are as many security flaws. This is particularly true of connections made from the internal network using a modem or any means of connection beyond the control of the firewall.

[Macarenas]

Unlike many firewall, ZoneAlarm has long been known to provide effective monitoring of incoming and outgoing connections for personal computers. A hacker may attempt to access a number of ways to a PC connected to the Internet via an attachment, a link included in a fraudulent email, or via a network service is automatically installed with the system. Zone Alarm prevents such intrusions by filtering and reporting suspicious communications.

[ThoMas321]

Comodo Internet Security is a security suite which includes FREE Comodo AntiVirus and Comodo Firewall, two good tools designed to thwart the traps on the Web. Comodo Internet Security also includes "Defense +" application of a proactive security that is responsible for protecting files and Windows registry attacks, rootkits, keyloggers, spyware and other Trojans.By default, Comodo Internet Security opens with a view "Summary" ("Summary") that gives you an overall state of security system and network. You access each part of the suite with large buttons placed very clear at the top of the main window. You can fine tune and independently firewall, anti-virus and the Defense + module.