Firewall Intrusion Detection

What is a firewall? It is a device or a software program that helps protect our computer system against unauthorized intruders. Such unauthorized intruders are always interested in stealing important data from the computers such as passwords; banks account information and personal data which may result in data theft.

What can a firewall do? Firewall does the work of securing the data stored on the computers. These firewalls play a very important role in case of intruders where they are interested in spreading programs like virus, worms and Trojan horses to harm the computers. Organizations which depend mostly upon the computer systems such as banks take care of their data by making it secured using the hardware as well the software firewalls on their systems.

What is a Firewall Intrusion Detection system (IDS)? This system inspects all the incoming and outgoing data of the network and identifies suspicious intruders who attempt to attack the network system by breaking into it.

What are the categories of Firewall Intrusion Detection system? IDS can be categorized as misuse detection or anomaly detection system, network-based or host-based systems and passive or reactive system. These categories are defined according to the working of the Firewall Intrusion Detection system.

There are many cheap or free firewall intrusion software available for downloading. Such software systems are commonly used for detection of various types of virus, spyware, malware and unwanted popups resulting in damage to the computer system. Such firewall intrusion detection system if failed can result in great harm to the computer.

Norton personal firewall intrusion protection is commonly used on the computer systems since it has all the features of a good intrusion detection software. This program detects the harmful software trying to attack your computer and deletes them automatically after scanning the system. Also, the Norton antivirus programs make sure that the corrupted sectors of the computer are repaired.

Network intrusion detection firewall is manufactured by companies like Norton, Mcafee, AVG and Quick Heal. All these are known to provide real-time protection to the computer system from the intruders who work to attack your system all the time.