Port Snoop / Spy Tool
May 2, 2009 1:04 PM Subscribe
How can I Spy the messages being exchanged by 2 programs on 2 known port nos. in my computer ?
posted by inquisitive to computers & internet (19 answers total) 1 user marked this as a favorite
I am running 2 instances of a particular program: 1 in server mode and 1 in client mode. I have configured the server instance to run on a particular port and the client instance to run on a different port. In the client instance, I also tell the client where (which port) to look for the server instance.
Upon certain user action, the client instance initiates some communication with the server instance. Then the server instance also sends back a message and both the instances keep communicating until all messages are exchanged.
All the messages are exchanged in text format (I know this from a particular source).
I want to spy the messages being sent from the client to the server and the server to the client.
For this, I am looking for an easy-to-use tool which I can first install on the server port, so that I can see the message being first sent by the client. Then I will put this tool on the client port to see what reply the server gives. In this way, I will keep on alternating the spy tool between the server port and the client port.
Which tool can serve my need and which is also easy-to-use and powerful ?
The reason is I want to develop some plug-ins for this software, so I should know the message protocol. The developers of the product are not willing to share this information.