Comments on: Check Connection established on a TCP port from a program?

By: tomliotta

tomliotta — Sat, 14 Nov 2009 13:00:38 +0000

What do you mean by “monitoring”? If there’s a program communicating through the port, it knows if it’s communicating or not. What are you expecting something outside the program to do that the program can’t do easier?

And what do you mean by “communications link”? The internet? Or do you have a modem/point-to-point connection or similar?

Please provide some info on what the process is. It’s far too vague so far.

The QTocRtvNetCnnDta API might be appropriate, but there’s no way to know from the info so far. And it’s not a trivial API, especially if you don’t already know sockets programming to help interpret the results. Connections come and go all the time. You don’t want to be alerting an admin every 20 minutes for no good reason.

Tom

By: donjohn

donjohn — Thu, 20 Dec 2007 10:38:15 +0000

ttrish is right.

Just about the only way you can recreate the functionality of netstat option 3 is by calling the API of QTocRtvNetCnnDta….however, Im not that strong with API programming….

ttrish, can u send us a sample source code that will call this API?

By: mschoenb2005

mschoenb2005 — Fri, 30 Sep 2005 09:25:08 +0000

WhatsUp Gold is a good inexpensive application that you can purchase that will handle this. Its good in a Windows environment although you can measure any platform with it via SNMP.

Nagios is a good Unix Base application. I believe it is freeware.

By: ttrish

ttrish — Fri, 30 Sep 2005 04:26:58 +0000

You might try looking at API QTocRtvNetCnnDta (Retrieve Network Connection Data)in IBM’s Information Centre