Firewalls protection against the external threats

When a connection to the Internet without a firewall, it takes no more than a few minutes and the computer has a trojan or similar threats as relevant tests show. Firewalls are an absolute must to uninvited guests away from your computers. A firewall is a part of a computer system or network that is designed to block unauthorized access while permitting authorized communications. It is a device or set of devices configured to permit, deny, encrypt, decrypt, or proxy all computer traffic between different security domains based upon a set of rules and other criteria.

Norton Internet Security provides comprehensive protection against the latest threats from the Internet. The program is immediately after installation in the background, optimizing the security settings and automatically protects against a variety of spy programs, viruses, worms and crime ware. It also protects the functions contained in the intelligent firewall against hackers and prevent unauthorized spying programs transmitted information.

Another round-safety tool, F-Secure Internet Security. The suite protects your PC from viruses and hacker attacks from the Internet. With the help of the integrated and excellent anti-virus software, the user is safe from viruses, e-mail. The firewall protects against attacks from the Internet. The tool also has an integrated lock time. There are some good firewall software program is available which protects your computer from external threats. Here is the list some firewall software programs:--
1. Mcafee Personal Firewall
2. Norton Personal Firewall
3. Panda Firewall
4. Comodo Firewall
5. Zone Alarm
6. PC Security Shield
7. Black Ice Defender
8. Agnitum Outpost Firewall Program

The Agnitum Outpost Firewall Program detects and blocks hacker attacks and intruders. It also offers full control of privacy, monitors network activity and those between the applications on a computer. It also prevents that Internet worms, especially in the inbox to become active. A self-protection feature ensures that the firewall direct target of an attack will. The extremely user-friendly Personal Firewall protects your PC effectively against hacker attacks, worms, trojans, spy software and other malicious code. Filtering rules to prevent or allow connections and applications that access the Internet want to be recorded and reported.