A firewall is a system which limits network access between two or more networks. Normally a firewall is deployed between a trusted, protected private network and an entrusted public network. For example, the trusted network might be a corporate network and public network might be the internet. A firewall might grant or revoke access based on user authentication, source and destination network address, network protocol, time of day, network service or any combination of these. Actually a firewall protects networked computers from intentional hostile intrusion that could compromise confidentiality or result in data corruption or identical of service.
Firewall for small business are available either software or hardware with software components. Software firewalls protect each individual pc they are installed on. But to protect all of the computers of company, each must have a software firewall installed. That can get expensive and be difficult to maintain. On the other side, the hardware solutions for small business integrates a hardware firewall with software controls into a comprehensive security solution that includes virtual private network support, antivirus, anti spam, antispyware and content filtering capabilities.
Firewall for small business, when integrated with a comprehensive security device offer many benefits like- support for changing business needs. The best solutions for small business let safely deploy new applications. This services provide advanced applications like �”layer security for a wide range of applications including email voice over IP, video and multimedia programs. As well as the solution control access to resources of the company. The most effective firewall for small business block unauthorized access to applications or information assets. In the other side, for increasing the employee productivity, the solutions keep a vital role. By blocking unauthorized access from hackers, firewall helps to prevent the loss of employee productivity or valuable company data.
For improving the business resiliency, the firewall must be needed. The best firewalls prevent disruption of business critical applications and services due to security breaches. The solutions are also needed to limit network access to business related content. Firewall also provide the DSL and cable modem services. If the user connect to the internet using DSL or cable modem services, there might be a router built into the equipment that the telephony company or cable company provided user. Newer version of windows come with a built in firewall feature that helps to protect the computer from undesired connections from internet.