Ignore all but one network interface

[steveatsws]

I have an ARM linux computer that I want to run NoMachine on, but when there’s multiple network interfaces, NoMachine doesn’t respond to port forwarding from the router. I can connect from my local network, but through the forwarded port I can’t.

If I disable the other network interfaces, I can connect remotely.

Is there any way to force NoMachine to only run on “wlan0” or only respond to requests on its local IP of “192.168.1.39”?

[steveatsws]

I’ve tried changing settings in node.cfg and server.cfg but I don’t think they’re working. Any old instructions I’m finding for setting things like “ListenAddress” and “SkipInterface” just aren’t working. All I want is for NoMachine on my Jetson Nano to only care about the connection on wlan0 and not even acknowledge other interfaces exist.

[Tom]

Hi Steveatsws,
I tested the “ListenAddress” key on Ubuntu 18.04 and NoMachine 8.4.2. It works as it should.
My Ubuntu has two interfaces which have IP 10.0.136.88 and 10.0.112.202. I can connect to both via NoMachine.

When I set the key in the server.cfg file:

NXdListenAddress "10.0.136.88"

I saved it and restarted the Nomachine server:

sudo /usr/NX/bin/nxserver --restart

I cannot connect to the address 10.0.112.202

Maybe you didn’t restart Nomachine after changing server.cfg?

Regards,
Tom

[steveatsws]

That fixed the issue.

The problem I was having is when I had two network interfaces available, and I forwarded port 4000 to one of them to access the machine from outside the network, it would work locally from inside my network, but when I try to connect from outside my network, it would give me “Connection was reset by peer” error constantly and my external IP wouldn’t be shown under the Server Status section.

[Author]

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