I recently made a samba server on an old laptop and that's all I wanted to do with it. About a day ago I was going to use vlc to look for the samba server (I was able to do so before) and couldn't find it. I tried restarting it and a sudo error popped up. Not only samba but other sudo commands as well do not work anymore. I uploaded a picture to see if it can help.
This is the exact problem:
sudo: /etc/sudoers is world writable
sudo: no valid sudoers sources found, quitting
sudo: unable to initialize policy plugin
sudo -iand then put in your root password. once you have done that then runsudo service smbd restartand see what they does. – Alex Lowe Mar 12 '17 at 02:45