Hi everyone,

I want to get two programs which are located in Linux and QNX machines respectively talk to each other via middleware. I
 checked everything needed to be set up by the middleware but they still couldn't communicate. The Linux and QNX 
machines can ping mutually. I wonder if there are some issues in the QNX network configuration that I need to pay 
attention to. I didn't make any changes in the firewall. Is it enabled by default? Or how should I set it?

Thanks.