NoMachine does not show external IP address and its port number

[abejon]

I installed NoMachine for Linux DEB -x86_64, amd64 ver 5.3.10 free on all my computers. I am trying to connect remotely and the problem is:

1. NoMachine is not showing me the external IP Address and its Port

2. I used nirsoft.net/show_my_ip_address.php to get the external address and port number for the server. Using this address and port# on the client site will give me time out error or connection refused error

Please help

[kroy]

If your router support UPnP please enable it in the NoMachine server configuration file. To do it set key “EnableUPnP NX” in the /usr/NX/etc/server.cfg and execute command sudo /usr/NX/bin/nxserver --upnpmap (more info you can find there: https://www.nomachine.com/AR11L00827).

[abejon]

Thanks for the answer but still have same problem, BTW it works great in LAN

So, I modified server.cfg to

#
EnableUPnP NX
#
In my modem UPnP is enabled:

UPnP: Enable

But still same problem, NoMachine will not display external IP and I’m still getting “Connection refused” Error 111

[kroy]

Did you try execute <code>sudo /usr/NX/bin/nxserver --upnpmap command? It should list your external IP and Port in the line: “NX port 4000 mapped to”. If there is no IP please write here your router model so we can investigate the problem. In that case you’d need to configure port forwarding manually to connect there from external network.

[abejon]

Yes, I did it does show one external IP(see below), When using it one laptop will say connection time out the other connection refused

> sudo /usr/NX/bin/nxserver –upnpmap
Local IP                   192.168.0.2
Gateway IP                 192.168.0.1
External IP                174.28.213.158

My modem is century link PK5001A

Thanks

[kroy]

Thanks for the report. If UPnP doesn’t work it remains to configure port forwarding manually. Instructions you can find on article https://www.nomachine.com/AR11L00827. Check section “IMPORTANT”.

[Author]

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