This fall we will be converting our primary database application to a new version that uses a web server as the front end. I have setup the server using Windows Server 2003 Web Edition.
The server exists on my network and has an internal Class C address.
My Cisco 2600 router has a route in it that points any requests to this web server's domain name to the internal Ip address.
I can ping the domain name and run a tracert to it. The web server has Ports 80 & 443 open. The new application requires Port 80
to be open.
Until this time we have not had a firewall in place. We have relied on NAT to protect us. If I put a firewall in place, what method will it use to determine a valid
attempt to access this web server vs an invalid attempt?