A question on the firewall.

Users questions: Rising anti-virus software, my firewall always said that blocking access to the system from the network port packet. If the packet is not blocked by the firewall, into the system, what effect will the system?
Experts answer: What effect did not think you have not installed a firewall used to be like? I never Install a firewall so no know what data packet; all firewalls are functions is to protect the network, hackers attacks; firewall for LAN servers such as the general fees system, transaction systems, etc.; install a firewall can help you he resolve all the so-called "attack" the problem ; Use a firewall greatest trick: just do not see, no matter; or you have endless worries and fear
  • This information provided by the users.Thanks!