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I've in the past successfully set sharing of wireless Internet connection through Ethernet on Ubuntu 16.04 as described here. Unfortunately due to disk failure I install Ubuntu 18.04 LTS and cannot find anything similar to what is described in mentioned post. All menus are now different and I don't know where to look.

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Follows these steps:

  1. Open nm-connection-editor from the terminal

    nm-connection-editor
    
  2. Click on the wired connection and select edit cog wheel below

    enter image description here

  3. Go to the ipv4 settings tab there in the Method select Shared to Other Computers

    enter image description here

Source:

https://www.crookm.com/journal/2018/sharing-wifi-connection-over-ethernet/

  • Do you also need to install dnsmasq as a dhcp server for the ethernet client? – heynnema Dec 26 '18 at 17:38
  • Not according to this article help.ubuntu.com/community/Internet/ConnectionSharing – George Udosen Dec 26 '18 at 19:27
  • Your link... under Advanced Gateway Configuration... re:dnsmasq... Advanced configurations include DHCP server and DNS server. A DHCP server allows the client to get an IP address automatically without having to manually configure a static IP. A DNS server allows the client to resolve Internet host names without manually configuring DNS addresses. – heynnema Dec 26 '18 at 19:33
  • Keep in mind, that with dnsmasq AND systemd-resolved installed at the SAME time, adjustments need to be made on systemd-resolved so it can co-exist nicely. – heynnema Dec 26 '18 at 19:35
  • I know what a DHCP server and what a DNS server do but I don't see the usefulness of setting up both just to share my internet with another computer! – George Udosen Dec 26 '18 at 19:41

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