The list auto-updates as connections are created or destroyed, so you can see your network activity in real-time.
You get a list of the TCP/UDP connections on your system, and the ability to interact with specific connections or the process that created them. TCPView presents you with a very simple interface that is appropriate to its purpose and relatively easy to use. Using this utility, you can determine what ports any software needs by running the software and noting down the connections that it makes.If something on your system is running amok, or you think you might have a spy in your midst, or you're simply curious (or obsessive) about the inner workings of your network, give this simple program a look. The fourth column provides information about the remote connection Experiment by opening up new browser windows or chatting on an instant messaging program So 'mike1:2184' indicates that particular connection is using port #2184 the process running it is firefox. The third column 'local address' shows the name of your computer and the port number that is being used for that particular connection. The first column displays the name of the program that created that connection while the next column displays the type of connect. To cut the view down to something more manageable, open the 'options' menu and uncheck the 'show unconnected endpoints' option.Įach line displayed is an active connection between your computer and a remote host. This is overwhelming the default is to lists all listening ports as well as those that currently have connections. When TCPview is first run depending on your system set-up you will see a screen full of detailed information. You can use TCPView on Windows 95 if you get the Windows 95 Winsock 2 Update from Microsoft. If a program on your system connects to the Internet, TCPview will tell you and show the port or ports it is using.ĭownload TCPView from Sysinternals ( Note: Aquired by Microsoft however the tools remain free) It is a very small program and works on Windows NT/2000/XP and Windows 98/Me. It is an excellent utility providing you with a graphical, real-time view of all active connections on your system. My personal favourite a tiny freeware program called TCPview by Sysinternals. An alternative is to download one of the many free utilities that monitor a PC’s ports. This information can be obtained by visiting the website of your software's manufacturer. The most difficult steps in configuring your firewall for common application is discovering which ports need to be opened for that program. Home Web Server Uniform Server 3.5-Apollo.
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