sudoers.so must be only be writable by owner
11036
Changed permissions of / to user
86511
How do Ubuntu and Debian manage $HOME for users with sudo privileges?
45048
Getting sudo to work for an alias
46726
Does user have to logoff then back on if I change /etc/sudoers?
3716
How do I add myself back as a sudo user?
73466
How to solve "sudo: /etc/sudoers.d is world writable"
54429
Why can't I sudo some commands? (e.g., vim)
16283
How to make `sudo` preserve $PATH?
135331
I changed /etc/sudoers, and now I can't run as sudo
26787
Precedence of user and group owner in file permissions
126864
How to export variable for use with sudo?
35910
Why does sudo ignore aliases?
55282
Block a command from sudo user
22460
root owned program with setuid bit on
16116
How to modify an invalid '/etc/sudoers' file?
60165
Why is it called sudo?
15255
How can I add a new user as sudoer using the command line?