Originally posted here by zencoder
I believe some app's will create a new socket elsewhere (53000 for example) once a valid connection has been initiated. Like apache...httpd will spawn multiple threads, and each thread will answer requests. 80 is simply the service port that is being listened to...actual traffic back and forth takes place on other ports, I believe.
No, it doesn't.. Apache (and any other webserver) will listen AND respond from port 80.. No other ports will be used.. FTP and RPC on the other hand will define a random port to transfer the data..