INFORMATION SECURITY IN A NETWORK USING- FIREWALLS
Most corporate environments have deployed firewall to block access to internal data and computing resources from untrusted hosts and limit access to untrusted hosts from inside. According to one description firewall is “A combination of hardware and software that intercepts data between the internet and your computer .It is the TCP/IP equivalent of a security gate at the entrance of your company.All data traffic must pass through it and the firewall there only authorizes data or people to pass into the network facility.” Typical corporate fire wall is a strong security perimeter around the employees who coloborate within the corporation .It is usually located at a higher-level gateway such as a site’s connection to the internet.
