How do i find what ports are open on my computer ?

Question

i use torrent programs and they all say my ports are blocked how do i find what ports are open so i can download faster or dose it have something to do with my ip address

Answer 1

Go to start > run > type cmd

issue the following command

to find out listening TCP port  on windows

netstat -a -p TCP

To just show all protocol

netstat -a

for linux

netstat -a | grep LISTENING  

Answer 2

You have to open the ports for your bittorrent program by setting exceptions in your firewall and router.  This guide on getting the best speeds in bittorrent clients has some info and links to more specific guides for the better clients:

http://www.techsupportalert.com/content/...

Answer 3

You prolly have your firewall turned on. The firewall will block your ports. There is a security website that will scan your system for chinks in your armor and report to you which ports you have open.

http://www.auditmypc.com/firewall-test.a...

Answer 4

How to find open ports on a computer

To find open ports on a computer, you can use netstat command line.

   1. To display all open ports, open DOS command, type netstat and press Enter.

   2. To list all listening ports, use netstat -an |find /i "listening" command.

   3. To see what ports your computer actually communicates with, use netstat -an |find /i "established"

   4. To find specified open port, use find switch. For example, to find if the port 3389 is open or not, do netstat -an |find /i "3389".

   5. You can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display