Why are there predefined application specific ports? for example, why is HTTP associated with port 80?
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Why are there predefined application specific ports? for example, why is HTTP associated with port 80?
It's easier since you don't have to remember what port to use as well as the url. In some way it's just like that you don't have to use the long distance prefix when you dial a local phone number.
So you know which port to connect to on the remote computer. Without ports, the remote computer has no idea what to do when a connection is made. With a port, the computer sees a connection on port 80, says, "aha!", and activates the web server to handle it.Quote:
Originally Posted by maybnxtseasn
The reason it is 80 is because of an arbitrary list that was made back in the early 70s to handle standard requests. This list is still maintained and users can register specific ports. We are up around 13000 now for specifically registered ports, I believe.