The firewall controls what programs can access the internet and what programs from the internet can access the computer
what is a firewall ?How does it work?
http://computer.howstuffworks.com/computer-internet-security-channel.htm
Is a security program which protects your computer from unauthorized access through the Internet. It resides on your PC and filters traffic coming and going from your computer
http://www.Microsoft.com/protect/computer/firewall/faq.mspx
A Firewall is a program or device that acts as a barrier to keep destructive elements out of a network or specific computer. Firewalls are configured (in hardware, software, or both) with specific criteria to block or prevent unauthorized access to a network. There are many firewall in the network and here below are the following
1. Comodo Firewall - personalfirewall.comodo.com/
2. Zone alarm
A firewall software is used to protect a computer or network by analyzing data coming in and going out for threats. It can protect against threats like worms or trojans.
Business firewall software may different from home firewall software in offering more advanced protection. But basically it serves the same purpose which is to protect your computer from hackers and viruses.
A firewall can be either hardware or software
backup
Microsoft has software for individuals and small businesses. Microsoft does have a firewall software product for small businesses. Bigger businesses may also use their software.
Usually software but some hardware firewall devices are produced.
Hotspot,Shield
A business firewall software allows your company to be protected from hackers, viruses and trojans. This is essential for businesses because it gives security.
Great firewall software would include zonealarm or webroot. Even the windows firewall included with Windows XP SP2 and beyond should do the trick. And remember that if you have a router it also has a hardware firewall in it.
firewall is a hardware or software solution to enforce security policies. In the physical security analogy,
Firewall appliances are stand-alone, self contained combinations of computing hardware and software. A commercial grade firewall system consists of application software that is configured for the firewall application and run on a general-purpose computer.
There is no reason to not just install a software or firewall solution to solve the securitRE. As a matter of fact there are some antivirus programs that even offer a firewall option.
Here are the top security measures. 1. Firewall 2. Antivirus 3.Network security Firewall: Firewall acts as a barrier and protects your system from external threats. Best firewall software would be Comodo personal firewall(personalfirewall.comodo.com). Antivirus : Antivirus software searches for, detects, prevents and remove software viruses, and other malicious software Network security: Network security is a combination of antivirus and firewall created with an aim to give complete protection from every side.