Firewall

Three basic types of firewalls are available for you to choose from: Software firewalls Hardware routers Wireless routers To determine which type of firewall is best for you, answer these questions and record your answers: How many computers will use the firewall? What operating system do you use? (This might be a version of Microsoft Windows, Apple Macintosh, or Linux.) That’s it. You are now ready to think about what type of firewall you want to use. There are several options, each with its own pros and cons. ...

A firewall is an application which controls network traffic to and from a computer, permitting or denying communications based on a security policy. A personal firewall differs from a conventional firewall in terms of scale. Personal firewalls are typically designed for use by end-users. As a result, a personal firewall will usually protect only the computer on which it is installed. Many personal firewalls are able to control network traffic by prompting the user each time a connection is attempted and adapting security policy accordingly. Personal firewalls may also provide some level of intrusion detection, allowing the software to terminate or block connectivity where it suspects an intrusion is being attempted. ...