Sudo: the mode of/etc/sudoers is 0551, which should be 0440

Environment: Ubuntu 12.04.4 lts 32bit

You want to modify the/etc/sudoers file and cancel the password for the sudo permission. However, because the sudoers file does not have the 'w' (write) Permission, an error is added when the command is used to add the write permission, and The 'X' (executable) Permission is added. Sudo cannot be used, but it cannot be changed. Every time sudo prompts that The sudo:/etc/sudoers mode is 0551 and should be 0440.

Later in the csdn (http://blog.csdn.net/tsuliuchao/article/details/14221933) to find a way to test feasible.

Pkexec chmod 0440/etc/sudoers

OK.