Why do you need to protect your computer with a firewall? Does a firewall really help? A firewall is a program or hardware that provides your computer protection from anonymous hackers, worms, and viruses that try to invade your computer through the Internet. It is a barrier that protects your computer. The firewall scans the things that go through your Internet access point to filter your computer from anomalies based on how you customized the settings.

A firewall’s task is tantamount to an actual, physical firewall which keeps fire from spreading to other areas or even your home.

When using your computer at home, or you have a network of computers, or you are using your computer for business, it is essentially important to turn on your firewall. The firewall has two variations. One is hardware and the other is a software program. The hardware firewall is a piece of electronic device which is usually used by businesses handling large networks. Computers used at home usually use the software firewall.

The firewall is needed especially if you have a DSL service or a cable modem for Internet connection. But, having your firewall turned on does not mean you are completely and fully protected from hackers, worms, and viruses. The firewall will not always block virus in emails or malwares from attacking and infiltrating your computer. You also need to have updated antivirus software installed in your computer to double the security and increase the protection.

Firewalls use different combinations of the three ways to control the inflow and outflow of traffic in the network:

Packet filtering refers to the analysis of small chunks of data. The firewall scrutinizes the header information which holds the source, destination IP addresses, and the ports. Packets or small bits of data that pass through the filters are sent to the requesting system while all the other data are rejected.

Proxy service. In the proxy service, the information or data from the Internet is reclaimed by the firewall and launched to the requesting system and from the requesting system to the firewall.

Make sure that your computer runs with a firewall. If you can, you should also try using an all-in-one security suite such as an antivirus firewall software program that works both as virus protection and firewall.

Safety and security are the two things which everyone will be looking for. Whether it may be belongings are personal data in the PC, we are in need of a safety system. Biometrics provides extreme security. It is a branch of information technology which is used to measure and analyze the identification of a person. Authentication is important to safeguard our belongings. Face recognition uses series of image or an image obtained from the camera to recognize the person. It works from a long distance and monitor the persons without their knowledge while most of the biometric systems needs the persons to come directly and close to them to recognize their identification.

There are number of players available in the market which creates the logon security for the networks and Pc. The best of the player is found to be the Identix technologies which is integrated into window 2000 active directories and provides quick verification process. And next best player is found to be the digital persona UareU, provides adequate support and solution, but less when compared to the Identix player. The biometrics locks could be effective to protect our secret information and belongings. Also you can identify the person who had tried to unlock the lock in our absence. The latest advancement in the technology is the evolution of fingerprint locks. With the help of the irises, vein patterns, hand prints and finger prints are used to lock your belongings. The biometrics can be very effective in protecting not only the data but also the precious things present in our home. A biometric lock can be used to lock the doors of the house and only the person who has stored his finger print can unlock it again.