I have a centos 7 machine which controls some equipment via GPIB. The programme doing this is a perl based cgi programme. There is another machine which runs windows 8 and controls a test station. I wish to send commands from the windows machine to the centos machine to trigger a measurement via the gpib.

On the windows machine there is a vb script based script that is attempting to contact the centos machine, but it keeps saying the centos machine is rejecting the command.

On the centos machine, the cgi programme is listening on port 4040, dumping the port info shows that 127.0.0.1 4040 is LISTENING.
I have tried the following;
1) SE linux is set to permissive, I tried disabling it all together.
2) I completely disabled the firewall.
3) Network access is set to allow anyone to access the network.

None of these methods have made any difference. I have tried to google for an answer but just get hits on setting up VNC.

I shall keep attempting to find an answer on the net, but I am hoping that someone here could at least point me in the direction of relevant information.

Thanks in advance,

greadey

To access a application from the network it has to be listening to your ethernet address and not just localhost (127.0.0.1). Can you post any information or links to the CGI program?