No port number shown for my machine

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  • May 20, 2021 at 14:29 #33543
    jxu
    Participant

    Thanks for this amazing piece of software.

    I have two computers in my LAN behind the router. One is Mac and the other one is Ubuntu 18.04. I have installed NoMachine on both of them. I went through this post: https://knowledgebase.nomachine.com/AR10R01099. My Mac is able to successfully do automatic port forwarding in NoMachine and the server status shows a port number for me to connect to outside the local network. But I just cannot get the Ubuntu computer to do automatic port forwarding.

    I checked my router configuration, everything looks correct and UPnP is enabled – I guess otherwise my Mac computer connection won’t work.

    Here is the output for sudo /etc/NX/nxserver --restart

    NX> 162 Disabled service: nxserver.
    NX> 162 Disabled service: nxnode.
    NX> 162 Disabled service: nxd.
    NX> 111 New connections to NoMachine server are enabled.
    NX> 161 Enabled service: nxserver.
    NX> 161 Enabled service: nxnode.
    NX> 161 Enabled service: nxd.

    Here is the output for sudo /etc/NX/nxserver --upnpmap

    Local IP                   192.168.0.7
    Gateway IP                 192.168.0.1
    External IP

    Can you help with the automatic port forwarding? I really don’t want to manually set up port forwarding and I mean that is the reason I chose NoMachine.

     

    May 21, 2021 at 08:53 #33560
    Irek
    Participant

    Hello jxu,

    we would need some more information:

    Can you describe the network infrastructure

    – router model / version
    – is there more than one router / network interfaces on which Linux machine is connected?
    – are both machines connected to the same router, both over wifi/lan or mixed?

    To list all interfaces on Mac and Linux, you can execute in terminal following command and show here the ouput:

    ”
    ifconfig -a
    “

    May 21, 2021 at 09:52 #33561
    jxu
    Participant

    – router model / version

    CenturyLink, model number: C844G

    – is there more than one router / network interfaces on which Linux machine is connected?

    No, only this router – through wifi.

    – are both machines connected to the same router, both over wifi/lan or mixed?

    Both machines are connected to the same router. Both are connected through wifi.

    Output on Linux of ifconfig -a

    enp5s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:01:2e:95:49:90 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

enp6s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:01:2e:95:49:8f txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 188608 bytes 214587657 (214.5 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 188608 bytes 214587657 (214.5 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.7 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::7b02:8653:aede:4e26 prefixlen 64 scopeid 0x20 ether 50:e0:85:39:57:ec txqueuelen 1000 (Ethernet)
RX packets 588940 bytes 476082030 (476.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 484831 bytes 115044403 (115.0 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

ztbpamnldl: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 2800
inet 10.147.19.222 netmask 255.255.255.0 broadcast 10.147.19.255
inet6 fe80::f833:3aff:fecc:4308 prefixlen 64 scopeid 0x20 ether fa:33:3a:cc:43:08 txqueuelen 1000 (Ethernet)
RX packets 65 bytes 9438 (9.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3336 bytes 669926 (669.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

    Output on Mac of ifconfig -a

    lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
options=1203<RXCSUM,TXCSUM,TXSTATUS,SW_TIMESTAMP>
inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
nd6 options=201<PERFORMNUD,DAD> gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=400
ether 3c:15:c2:de:bc:42
inet6 fe80::1c96:f0b1:7b8c:150%en0 prefixlen 64 secured scopeid 0x4
inet 192.168.0.6 netmask 0xffffff00 broadcast 192.168.0.255
nd6 options=201<PERFORMNUD,DAD> media: autoselect
status: active
p2p0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 2304
options=400
ether 0e:15:c2:de:bc:42
media: autoselect
status: inactive
awdl0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1484
options=400
ether 2a:65:be:88:c1:c7
inet6 fe80::2865:beff:fe88:c1c7%awdl0 prefixlen 64 scopeid 0x6
nd6 options=201<PERFORMNUD,DAD> media: autoselect
status: active
llw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=400
ether 2a:65:be:88:c1:c7
inet6 fe80::2865:beff:fe88:c1c7%llw0 prefixlen 64 scopeid 0x7
nd6 options=201<PERFORMNUD,DAD> media: autoselect
status: active
en1: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
options=460<TSO4,TSO6,CHANNEL_IO>
ether 82:0f:11:6a:b8:c0
media: autoselect
status: inactive
en2: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
options=460<TSO4,TSO6,CHANNEL_IO>
ether 82:0f:11:6a:b8:c1
media: autoselect
status: inactive
bridge0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=63<RXCSUM,TXCSUM,TSO4,TSO6>
ether 82:0f:11:6a:b8:c0
Configuration:
id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
ipfilter disabled flags 0x0
member: en1 flags=3<LEARNING,DISCOVER>
ifmaxaddr 0 port 8 priority 0 path cost 0
member: en2 flags=3<LEARNING,DISCOVER>
ifmaxaddr 0 port 9 priority 0 path cost 0
nd6 options=201<PERFORMNUD,DAD> media:
status: inactive
utun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1380
inet6 fe80::e53a:c2e:72c:4037%utun0 prefixlen 64 scopeid 0xb
nd6 options=201<PERFORMNUD,DAD> utun1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 2000
inet6 fe80::f014:8ae2:7d86:f30f%utun1 prefixlen 64 scopeid 0xc
nd6 options=201<PERFORMNUD,DAD> utun2: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1380
inet6 fe80::f0b5:6f19:6716:ca63%utun2 prefixlen 64 scopeid 0xd
nd6 options=201<PERFORMNUD,DAD> utun3: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1380
inet6 fe80::8435:244:42ac:cfb3%utun3 prefixlen 64 scopeid 0xe
nd6 options=201<PERFORMNUD,DAD>
    May 21, 2021 at 10:23 #33568
    Irek
    Participant

    Hello jxu,

    on Linux machine I see those 2 interfaces

    ”
    wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
    inet 192.168.0.7 netmask 255.255.255.0 broadcast 192.168.0.255

    ztbpamnldl: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 2800
    inet 10.147.19.222 netmask 255.255.255.0 broadcast 10.147.19.255
    ”

    could you please, for test purpose, disable/remove ‘ztbpamnldl’ interface,
    so there will be only one ‘wlp2s0’ like on Mac os.

    May I ask what is this ‘ztbpamnldl’ interface?

    Then restart nxserver, reproduce and please let us know if this helps:

    ”
    sudo /etc/NX/nxserver –restart
    sudo /etc/NX/nxserver –upnpmap
    sudo /etc/NX/nxserver –upnpstatus
    “

    May 21, 2021 at 12:44 #33571
    jxu
    Participant

    How do I remove that interface?

    May I ask what is this ‘ztbpamnldl’ interface?

    I am guessing it is because I am using zerotier for ssh. However, I do not believe this is the issue because in another apartment of mine I have a Linux machine working with NoMachine automatic port forwarding which also uses zerotier and has this interface for ifconfig -a.

    But I can try to remove it if you let me know what is the command to do that.

    May 21, 2021 at 13:45 #33572
    jxu
    Participant

    In case you dont know about ZeroTier, it will give you a WAN accessible psuedo IP address for my machines in the local network, so I don’t need to set up port forwarding for ssh.

    May 21, 2021 at 14:19 #33581
    Irek
    Participant

    Hello jxu,

    – as first stop/disable zerotier service.

    – then to disconnect its interface please try this command:

    ”
    nmcli device disconnect ztbpamnldl
    ”

    – check if this interface id disconnected, by:

    ”
    nmcli device status
    ”

    when all goes ok, and there will be only one interface enabled/connected,
    restart nxserver, reproduce and please let us know if this helps:

    ”
    sudo /etc/NX/nxserver –restart
    sudo /etc/NX/nxserver –upnpmap
    sudo /etc/NX/nxserver –upnpstatus
    “

    May 21, 2021 at 22:28 #33600
    jxu
    Participant

    It does not help.

    I have disabled the service and this is the output from ifconfig -a

    enp5s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
    ether 00:01:2e:95:49:90  txqueuelen 1000  (Ethernet)
    RX packets 0  bytes 0 (0.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 0  bytes 0 (0.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

     

    enp6s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
    ether 00:01:2e:95:49:8f  txqueuelen 1000  (Ethernet)
    RX packets 0  bytes 0 (0.0 B)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 0  bytes 0 (0.0 B)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

     

    lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
    inet 127.0.0.1  netmask 255.0.0.0
    inet6 ::1  prefixlen 128  scopeid 0x10<host>
    loop  txqueuelen 1000  (Local Loopback)
    RX packets 343739  bytes 384913387 (384.9 MB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 343739  bytes 384913387 (384.9 MB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

     

    wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.0.7  netmask 255.255.255.0  broadcast 192.168.0.255
    inet6 fe80::7b02:8653:aede:4e26  prefixlen 64  scopeid 0x20<link>
    ether 50:e0:85:39:57:ec  txqueuelen 1000  (Ethernet)
    RX packets 1208767  bytes 1101893313 (1.1 GB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 835761  bytes 175730682 (175.7 MB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

    The output from nmcli device status is

    wlp2s0  wifi      connected    623
    enp5s0  ethernet  unavailable  —
    enp6s0  ethernet  unavailable  —
    lo      loopback  unmanaged    —

    The output from sudo /etc/NX/nxserver –upnpmap is

    Local IP                   192.168.0.7
    Gateway IP                 192.168.0.1
    External IP

    May 21, 2021 at 22:30 #33601
    jxu
    Participant

    As I said, I have another Linux machine using zerotier and it has the interface in ifconfig but works well with automatic port forwarding so I don’t think zerotier might be the issue.

    May 26, 2021 at 08:30 #33639
    Irek
    Participant

    Hello jxu,

    we would need to collect debug logs.
    Restart router, wait till it finish and repeat all the steps on both machines, Linux and Mac:

    1 Enable debug and restart nxserver:
    ”
    sudo /etc/NX/nxserver –debug –enable all
    sudo /etc/NX/nxserver –restart
    ”

    2 Reproduce the problem
    ”
    sudo /etc/NX/nxserver –upnpmap
    sudo /etc/NX/nxserver –upnpstatus
    ”

    3 Collect logs and disable debug:
    ”
    sudo /etc/NX/nxserver –debug –collect
    sudo /etc/NX/nxserver –debug –disable all
    sudo /etc/NX/nxserver –restart
    ”

    4 Please send to us also server.cfg files from both machines, Linux and Mac.

    This article explains how to collect the logs: https://knowledgebase.nomachine.com/DT11R00181
    Please attach logs to your reply here or you can send them to forum[at]nomachine[dot]com making sure to use the topic’s title in the subject.

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