Firewall Software
Stem the tide of harmful information
Firewall security software prevents potential threats from reaching a computer network. It is often used to protect larger networks, such as in businesses, in which one security breach can cause damage to the entire network. However, even smaller home networks can suffer the consequences of poor security, which can be prevented with personal firewall software.
A firewall examines information flowing between the Internet and the network. It may analyze information packets or only key parts of the packet, and then it filters out unwanted packets and sends the remainder to the requesting system.
Firewalls can be customized to suit the network's needs. Certain IP addresses, domain names, protocols, ports, words or phrases can be filtered out by the firewall. As well, these restrictions can be varied from computer to computer; for example, while an adult's computer can access sites with mature content, a child's computer on the same network can be denied access.
Firewall software protects from a variety of potential threats from remote logins, email bombs, viruses and spam. However, with even the best firewall software, it is difficult to keep out all threats without blocking Internet access entirely. Therefore, it is recommended that firewalls be used in conjunction with antivirus software.
Fortunately, firewall software doesn't have to be expensive; a lot of free firewall software can be found for download online. Comodo Firewall Pro is often recommended as one of the best firewall programs available for free online.
Features and Benefits
A firewall:
- Prevents anyone from remotely logging into a computer on your network.
- Allows for customizable filtering options.
- Protects both large business networks and small home networks.
Top Choices
- Comodo Firewall Pro
- ZoneAlarm
- PC Tools' Firewall Plus
Major Considerations
- Will free firewall software satisfy my security needs?
- Do I need antivirus software to accompany firewall software?
- How much and what type of information do I want to filter out?
Price Range
Basic firewall software can be downloaded online for free, but if you need the full features of firewall software protection, be willing to spend from $20 to $60.
Summary
Firewall software is an easy and cheap way to protect yourself and your network. It protects against a variety of security threats and is customizable to your network's specific security needs. Used in conjunction with antivirus software, firewall software allows for worry-free Web browsing and a secure, safe network.
Comments (0)