The most common firewall techniques involve packet filtering, application gateway, proxy server and circuit-level gateway. Any online computer without the properly firewall and security implementations can be attacked by hackers and other security threats. A router is a good example of the computer network device that has built-in firewall capabilities.
A gateway computer is directly exposed to the internet so without firewall and security techniques implementations there are great security risks. A number of companies make the software and hardware firewall products with wide variety of features. In this article we will get an overview of some of the best free firewall software.
ZoneAlarm
Zone Alarm protects your computer from the hackers and other internet security threats. It identifies the hacking attacks and blocks them. It automatically makes your computer invisible to everyone on the internet. The professional version of the Zone Alarm Firewall is “Zone Alarm Internet Security Suite”. It provides you protection against the antivirus, anti spyware, anti phishing, wireless protection, spying attacks and identity theft protection.
Comodo
Comodo Firewall Pro is wonderful firewall software that provides you protection against the hacker, spyware, Trojans, scripts and identity theft. It secures your system from the internet and external security threats and delivers end to end security to personal computer and network computers. Comodo Firewall Pro is available for free for the personal and commercial use.
Kerio Personal Firewall
Kerio Personal Firewall is personal firewall software that helps the users to secure their computer from the known internal, external and internet threats including hacking attacks and unauthorized access. Kerio Personal Firewall provides a line of defense for the businesses around the world.
Ashampoo
Ashampoo is a lightweight firewall program that provides you full protection against security threats. The Ashampoo is a free firewall program that comes with the four additional security tools. Ashampoo monitors your LAN connections, create security logs, filters the in and out traffic and identify the activities of many malicious viruses and spyware.
PC Tools Firewall Plus Free Edition
PC Tools Firewall Plus is wonderful firewall software that works with the Windows based operating systems. It helps to protect your computer the hackers and intruders. It controls the in and out traffic of your network, monitors the applications and overall network activities. It uses the advanced technology that provides defense against the unauthorized access. PC Tools Firewall Plus is recommended to use with the antivirus and anti spyware software. The interface of the PC Tools Firewall Plus is so easy and simple that a normal computer user can also use it effectively.