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What are ports and where are they? a few days ago someone asked what port numbers aim used to chat cause they needed to set up stuff in their firewall and router. i think i need to do that to but first i need t know what ports are. thanks.
Port – a 16-bit number (the allowed range being 1 through 65535) used by the TCP and UDP protocols. Ports are used to address applications (services) that run on a computer.
Basically, a port is where information goes into and out of a computer. It is defined by a number 1 – 65535, and is not a physical port, so you can’t say exactly “where” they are. For example, port 5190 is the port AIM uses to send messages. The information (the messages) you type into AIM leaves your computer through port 5190. Then the messages enter your friend’s computer on port 5190.
The reason the firewall needs to be set up is that the firewall closes all ports, so it is neccesary to open the port so AIM can send the messages.
Quote:quote:Originally posted by slackertildeathThe information (the messages) you type into AIM leaves your computer through port 5190. Then the messages enter your friend’s computer on port 5190.
That is not entirely true.
A port basically tells your computer what program the data is for when it recieves information from a network. When you are connecting to AIM, you connect to their servers (service) on port 5190. So, now their computer knows what program the data they recieve is for.
Then they want to send some data back to your AIM client – but how can your computer know that the data is for your AIM client? Exactly! It has opened another port.
For every connection you make, two ports are opened. One local port (to recieve data on) and one remote port (to send data to). This way two-way communication is enabled.
By the way, the basics of networking can easily be learned by… watching a movie! Have a look at WarriorsOfThe.Net (a recommender for anyone who likes geeky movies).
ok so i understand now about the ports but when the guy was asking about what port aim uses because he needs to set them to his router and firewall (or something) how would he do that? because my router is giving me a lot of problems with aim and i thought maybe if i did what that guy wanted to do my aim would be better. (unless im totally wrong, then you can tell me it wont work) thanks.
Have a look at this topic.
Quote:quote:because my router is giving me a lot of problems with aim and i thought maybe if i did what that guy wanted to do my aim would be better.Inorder to open ports on a router, you need to use port forwarding on the router.. Read the owners manual for your router in how to do this
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