HI there, When an internal machine attempts to connect to a webserver thru a firewall (linux iptables) what is the exact mechanisim? Is there a good explaination on the net?
Please correct me if I'm wrong, my understanding is the internal machine's browser tries to connect to www.redhat.com port 80, the firewall takes the packet and rewrites the IP to be its own and selects an outgoing port on the internet side of the firewall, keeps the external port, the internal IP and port in a table, the webserver responds back to the firewall, the firewall sees the response back to the external port, looks up the entry in the table, rewrites the destination IP and port to be the internal machine's IP and port. Is this a reasonable assumption? Or am I out in left field..... far out? TIA _______________________________________________ Firewalls mailing list [EMAIL PROTECTED] http://lists.gnac.net/mailman/listinfo/firewalls
