pchelp.ricmedia.com
Computer network firewall » Ricmedia PC Help
A computer Network Firewall is either: (1) a software program installed on your PC (2) a built-in firewall inside your modem or (3) a dedicated hardware firewall. Firewalls generally block all traffic (data transfer) unless a specific rule exception is added to allow traffic to pass. Larger corporate networks generally use a dedicated hardware firewall. …