Why does Ubuntu create a guest group when guest account has been disabled?

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I'm using Ubuntu-Mate 16.04.
I've disabled the guest account by creating a 50-no-guest.conf file in
the /etc/lightdm/lightdm.conf.d folder, with the following command in the file:



[Seat:*]
allow-guest=false


That eliminated the guest login.



Before removing "Guest" I looked in "Manage Groups" and noticed that the guest creates a group entry. It looks something like:



guest-xxxxxx


After disallowing the guest account, I still show a guest entry in Group Manager. It is:



guest-7fan88


I can delete it, but it comes back next reboot. It is there even if I enable the guest account again.



Is this normal?



Do I have some other problem?



Can this be a security risk?



I'm very curious about this.



Thanks!










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    I'm using Ubuntu-Mate 16.04.
    I've disabled the guest account by creating a 50-no-guest.conf file in
    the /etc/lightdm/lightdm.conf.d folder, with the following command in the file:



    [Seat:*]
    allow-guest=false


    That eliminated the guest login.



    Before removing "Guest" I looked in "Manage Groups" and noticed that the guest creates a group entry. It looks something like:



    guest-xxxxxx


    After disallowing the guest account, I still show a guest entry in Group Manager. It is:



    guest-7fan88


    I can delete it, but it comes back next reboot. It is there even if I enable the guest account again.



    Is this normal?



    Do I have some other problem?



    Can this be a security risk?



    I'm very curious about this.



    Thanks!










    share|improve this question























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm using Ubuntu-Mate 16.04.
      I've disabled the guest account by creating a 50-no-guest.conf file in
      the /etc/lightdm/lightdm.conf.d folder, with the following command in the file:



      [Seat:*]
      allow-guest=false


      That eliminated the guest login.



      Before removing "Guest" I looked in "Manage Groups" and noticed that the guest creates a group entry. It looks something like:



      guest-xxxxxx


      After disallowing the guest account, I still show a guest entry in Group Manager. It is:



      guest-7fan88


      I can delete it, but it comes back next reboot. It is there even if I enable the guest account again.



      Is this normal?



      Do I have some other problem?



      Can this be a security risk?



      I'm very curious about this.



      Thanks!










      share|improve this question













      I'm using Ubuntu-Mate 16.04.
      I've disabled the guest account by creating a 50-no-guest.conf file in
      the /etc/lightdm/lightdm.conf.d folder, with the following command in the file:



      [Seat:*]
      allow-guest=false


      That eliminated the guest login.



      Before removing "Guest" I looked in "Manage Groups" and noticed that the guest creates a group entry. It looks something like:



      guest-xxxxxx


      After disallowing the guest account, I still show a guest entry in Group Manager. It is:



      guest-7fan88


      I can delete it, but it comes back next reboot. It is there even if I enable the guest account again.



      Is this normal?



      Do I have some other problem?



      Can this be a security risk?



      I'm very curious about this.



      Thanks!







      permissions login security lightdm






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      asked Feb 7 at 23:38









      exe2bin

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          I had the same problem and used the command
          sudo deluser --remove-all-files guest-xxxxxx followed by sudo deluser -group guest-xxxxxx. It worked.



          The man-page for the above is :
          http://manpages.ubuntu.com/manpages/xenial/man8/deluser.8.html






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            up vote
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            down vote













            I had the same problem and used the command
            sudo deluser --remove-all-files guest-xxxxxx followed by sudo deluser -group guest-xxxxxx. It worked.



            The man-page for the above is :
            http://manpages.ubuntu.com/manpages/xenial/man8/deluser.8.html






            share|improve this answer


























              up vote
              0
              down vote













              I had the same problem and used the command
              sudo deluser --remove-all-files guest-xxxxxx followed by sudo deluser -group guest-xxxxxx. It worked.



              The man-page for the above is :
              http://manpages.ubuntu.com/manpages/xenial/man8/deluser.8.html






              share|improve this answer
























                up vote
                0
                down vote










                up vote
                0
                down vote









                I had the same problem and used the command
                sudo deluser --remove-all-files guest-xxxxxx followed by sudo deluser -group guest-xxxxxx. It worked.



                The man-page for the above is :
                http://manpages.ubuntu.com/manpages/xenial/man8/deluser.8.html






                share|improve this answer














                I had the same problem and used the command
                sudo deluser --remove-all-files guest-xxxxxx followed by sudo deluser -group guest-xxxxxx. It worked.



                The man-page for the above is :
                http://manpages.ubuntu.com/manpages/xenial/man8/deluser.8.html







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited May 3 at 15:51









                Jeremy

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                1,44731832










                answered May 3 at 6:20









                user825226

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