I have the following ifconfig:-

enp0s31f6: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet  netmask  broadcast
        inet6 rr50::9r16:r57r:rrr6:rr86  prefixlen 64  scopeid 0x20<link>
        ether 88:88:rr:8r:b8:88  txqueuelen 1000  (Ethernet)
        RX packets 1283617  bytes 447482292 (447.4 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 777459  bytes 128121082 (128.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xf7100000-f7120000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet  netmask
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 62037  bytes 26306447 (26.3 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 62037  bytes 26306447 (26.3 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Also my /etc/network/interfaces looks like this:-

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

To assign a static IP i tried to add something like this from here:-

auto enp0s31f6
iface enp0s31f6 inet static

I save it with sudo and then on terminal type and enter: sudo ifdown enp0s31f6 && sudo ifup enp0s31f6. This does not work. The goal was to enable nomachine access to this server machine from an outside client network. Doing this step led to loss of connection with the server immediately. The above ifconfig results is greek to me and i copied pasted from above SO answer. How to make this work? What are the correct values i should have given for the fields address, netmask, network, gateway.

  • Your values are ok but still don't match your ifconfig.. did you try sudo service networking reload ? Of you are connected over ssh or something it's clear that you lose the connection if the IP changes or the network is not coming up correctly..
    – derHugo
    Jun 27, 2017 at 5:40
  • And of course you add YOUR values for the IP and so on assuming your gateway is than address netmask gateway dns-nameservers (don't have to set network if you have set the others)
    – derHugo
    Jun 27, 2017 at 5:48
  • @derHugo If the broadcast address via DHCP is, then I suspect that the gateway may be, but user_1_1_1 needs to verify: route -n. Furthermore, I suggest a static address outside the DHCP pool which is not.
    – chili555
    Jun 27, 2017 at 12:30
  • No @chili555 I don't think so since his/her ip is and netmask is => IPs available are - ;) Anyway it's just an example
    – derHugo
    Jun 27, 2017 at 15:11
  • Furthermore we don't know the DHCP pool actually since it may always be smaller than the network eg.; than the rest could be used by static IPs.
    – derHugo
    Jun 27, 2017 at 16:56


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