A firewall is a hardware or SOFTWARE installed to provide security to the private networks CONNECTED to the internet. They can be implemented in both hardware and A firewall is a hardware or software installed to provide security to the private networks connected to the internet. They can be implemented in both hardware and software, or a COMBINATION of both. All data entering or leaving the Intranet passes through the firewall which ALLOWS only the data meeting the administrators’ RULES to pass through it.software, or a combination of both. All data entering or leaving the Intranet passes through the firewall which allows only the data meeting the administrators’ rules to pass through it.

A firewall is a hardware or software installed to provide security to the private networks connected to the internet. They can be implemented in both hardware and A firewall is a hardware or software installed to provide security to the private networks connected to the internet. They can be implemented in both hardware and software, or a combination of both. All data entering or leaving the Intranet passes through the firewall which allows only the data meeting the administrators’ rules to pass through it.software, or a combination of both. All data entering or leaving the Intranet passes through the firewall which allows only the data meeting the administrators’ rules to pass through it.