Computer Chat Ports

[Coded]

What is the reason for opening ports?
Why do we want to open them?
Can you tell me why ports 21, 25, 80, 443, 3074 and 32285 would want to be opened?

[Zachery]

ftp, smtp, web services, ssl, not sure about the other two

[Coded]

Is there a reason for them to be opened? I mean for your average home computer uses, there isn't any purpose to open them right? Or if you have a server, why do we open those ports? I'm asking these questions because my professor is asking about it and I can't find answers on google x.x

[Zachery]

Are you asking about opening ports on your home computer or your server?

[Shamil.]

3074 Xbox Live.
32285 Ares/Galaxy/BitTorrent client.

[Coded]

I asking for both Zach, it's just a question asking Why would those ports be opened.

[Zachery]

For a server, those ports need to be open to get and or send data.

Port 21 is ftp
Port 25 is SMTP (Email)
Port 80 is web sites without SSL
Port 443 is SSL encrypted sites