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Firewall is the most important software that protects our computer from external attacks. It serves as a wall from all the foreign attacks. A firewall is to a computer what a security system is to a home. It is very important to have a recommended one for our system. A firewall is a secure and trusted machine that is set between a private and public network. It is configured in such a way to determine which network traffic will be allowed to pass and which one to block or refused. In many reputed offices and organizations a firewall will be located inside their corporate network to segregate sensitive areas of the organization from other employees. Many cases of computer crime occur from within an organization, not just from outside. Some of the top firewall softwares are listed below.

1. Zone Alarm Pro 2008

URL : www.pcworld.com/article/id,111793-page,1/article.html

ZoneAlarm Pro is from Zonelabs. It is one of the mostly used one. Its well known for its feature like it is refined and mature personal firewall. It serves as a better security in both inbound and outbound protection and reduces annoying and harmful confirmation popups. Zone Alarm serves better that is this one is the key feature of this firewall , its gives a flexible protection against all risky e mail attachments. private data protection and blocking of ads and cookies. Some of the main features are it has Triple defense firewall to protect your computer, delivers proactive firewall protection and protects our program from malware.

2. Shield Pro Firewall 2008

URL : www.icomparer.com/AntiVirus/TheShieldProReview.html

This firewall contains antivirus, network security, folder production and many other. Shield pro firewall strongly blocks virus keeping our computer safe. This will help to detect malicious spyware and adware and repair it. For the protection of our PC this firewalls collects the patterns of spyware and analyze it and then update the module so that the user can detect and repair viruses by himself to keep internet using environment. It provide immediate alerts by monitoring all the incoming and outgoing connections.

3. Comodo Firewall

URL : www.pcmag.com/article2/0,1759,1969225,00.asp

Comodo gives us pop-up warnings about programs accessing the Internet and even warned some of its own modules.  Its pop ups are smarter than the rest. It has a Stealth Mode , which keeps all the unused communication ports hidden. It provides a wizard that helps you scan all computers available on the computer to initially determine which will need network access, so that you can set their credentials from the early start of the program. The auto- update feature lets our program updated through incremental patches to fix its security  or bug defects.

4. Prisma Firewall

URL : www.firewallguide.com/software.htm

Prisma firewall is mainly designed for home and small office settings. It gives a reliable solution to intrusion prevention , a personal firewall for individual PCs. It is a basic firewall that monitors our Internet and network connections and grants or denies access based on user defined rules. The main feature of this firewall is that it filters the traffic at network packet level and also control the application network access. This firewall is the mostly recommended one and one of the important one for our system. Prisma Firewall protects our computer and our personal information from intruders, data thieves and other Internet threats.

5. Net Firewall

URL : www.softpedia.com/reviews/windows/NeT-Firewall-Review-38772.shtml

Net firewall can be used as full version at its trial version. This firewall also monitors the state of the connection and compiles the information in a state table ensuring that the source and destination of each packet is valid. It tracks each packet traversing the firewall and makes sure that they are legitimate. It provides network traffic graph with protocol mapping availability.  It has a flexible rule-based packet filtering.

6. Norman Personal Firewall

URL : www.norman-personal-firewall-review.html

Norman personal firewall protects us with the best personal firewall available. We can set a password to prevent someone from changing our settings. This powerful security program utilizes computer and port stealthing technology to ensure our computer is invisible to hackers. The advanced stateful inspection of incoming and outgoing traffic controls data sessions and prevents your computer from being used in botnets, hijacked or exposed by other hostile activities. Hacker protection is also done by this firewall. Norman Personal Firewall offers good help within the software and a FAQ section online. They offer detailed explanations and examples to describe their filtering categories.

7.  Freedom Firewall

URL : www.personal-firewall-software-review.toptenreviews.com/freedom-firewall-software.html

Freedom Firewall is very powerful spyware detection solution. It ihas automatic configuration & automatically sets up suitable firewall rules for your mainly general Internet programs. Freedom Internet Security can keep your computer stealth and monitor incoming and outgoing data the basic roles of a firewall. We can set rules to block sensitive information from leaving our computer. It provides extra protection for our valuable informations and documents. eg: credit card information from hacker access. By its commanding technology it keeps on updating every 3 hours.

8. Kerio WinRoute Firewall

URL : www.kerio.com/kwf_home.html

Keiro firewall is a good software firewall that can help a small business set up and share internet access instantly and easily. This firewall is added with McAfee Antivirus and ISS Orange Web Filter. This makes the firewall versatile and powerful enough for the protection of the border of a small network. It keeps on defending against incoming threats and viruses and restricting user access to webpages based on their content. It is very easy to configure.

9. Defender Pro-firewall

URL : www.defender-pro.com/firewall.php

Defender pro- fire wall provides reliable protection of the computer’s data against hacker attacks. the application is extremely easy to configure and install. We can choose from five predefined security levels, each based on its own list of rules, from disabling protection to completely blocking network access.

10. Privatefirewall 5.0

URL : www.personal-firewall-software-review.toptenreviews.com/privatefirewall-review.html
Private firewall is a personal firewall and intrusion detection application is the best feature in it. The intrusion detection system is capable of detecting and successfully repelling the most common network attacks. This is achieved by continually filtering all incoming and outgoing traffic. Private firewall’s intuitive interfaces allow advanced users to easily adjust default settings to create custom configurations. Features include: Packet Filtering, Port Scanning, IP/Website Protection, Email Anomaly Detection, and Advanced Application Protection. Private firewall is high-performance desktop security that is affordable, feature-rich and simple to use.