Enable Guest Logins in Ubuntu 18.04 Bionic

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By default Ubuntu 18.04 ( non-Groovix ) no longer offers guest logins. But you can enable guest logins by switching the display manager from gdm3 to lightdm and enabling guest logins with the following steps.

  • sudo apt install lightdm ; # be sure to choose lightdm as the default greeter
  • sudo gedit /usr/share/lightdm/lightdm.conf.d/50-disable-guest.conf ; #change it to: allow-guest=true NOTE: There is a note about bug CVE-2017-8900 , https://bugs.launchpad.net/bugs/1663157 , but I tested it with: cat /proc/self/attr/current and it seems to be fixed even though the bug report is not updated.
  • Reboot the computer ( through the gui or shutdown -r now )
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