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Can anyone suggest how I can avoid this situation? It never asks for password but still complains the password is wrong.

sudo su -
Sorry, try again.
Sorry, try again.
sudo: 3 incorrect password attempts

sudoers file entry :

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL
%domain\\my_engineering ALL=(ALL:ALL) ALL

Thank you.

6
  • we added the eng group to the domain and users are able to login to the VM but failing to get sudo access. Yes both are tried but same issue.
    – ravi
    Apr 16, 2018 at 7:06
  • sudo su switches to the user root which is not enabled by default, no password is set for the user root...
    – mook765
    Apr 16, 2018 at 7:08
  • 3
    @mook765 With sudo, you don't need a password for su. sudo su - works just fine to give a root shell without the root account being enabled. Apr 16, 2018 at 7:37
  • %domain\\my_engineering ALL=(ALL:ALL) NOPASSWD:ALL also tried but no luck. i am new to ubuntu. where as in redhat i went well but in ubuntu somewhere i should look into but not getting some one who solved this please suggest me. Thank you :)\
    – ravi
    Apr 16, 2018 at 9:37
  • Perhaps you will find something helpful here: Allow AD Groups to SUDO Apr 16, 2018 at 12:13

1 Answer 1

0

In order to have sudo not asking a password you'd use ALL=(ALL) NOPASSWD: ALL attached to the user or to the group of your choice in the configuration file.

I'd suggest you to see man sudoers or a tutorial like this.

I prefer the man page first, though.

By the way, in order to get a root shell you can also run sudo -s -H. Again, the man page can be of help.

2
  • Hi Uqbar, tried already which you suggested commands but here domain users able to login and sudo access cant. %domain\\my_engineering ALL=(ALL:ALL) NOPASSWD:ALL also tried but no luck. Please suggest me
    – ravi
    Apr 17, 2018 at 9:40
  • I see now that you are trying to use Windows authentication services. Can those users log in?What does your Linux system says when they run the "id" command? Do you want them to be asked for the password or not?
    – EnzoR
    Apr 17, 2018 at 17:56

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