Comments on: Ubuntu Error “sudo: /etc/sudoers is mode 0640, should be 0440″

By: Derrick

Derrick — Fri, 16 Sep 2011 17:44:26 +0000

For those of you that “ESC” key doesn’t work, try holding down the left shift key.

By: SmeeZee

SmeeZee — Mon, 12 Sep 2011 20:13:47 +0000

Perfect, thank you!

By: kumar

kumar — Sun, 24 Jul 2011 15:42:40 +0000

After I issued command chmod -R 777 /etc
all the services are down like networking services, mysql services. when i type sudo command it shows
sudo: /etc/sudoers is mode 0640, should be 0440
sudo: no valid sudoers sources found, quitting
when i type su root
password:
authentication failure.

can anyone plz tell me the solution for the above prob

By: A Leach

A Leach — Wed, 22 Dec 2010 16:24:59 +0000

I had this problem after messing around with samba. I wasn’t in a position where I could restart my (Ubuntu 10.10) server, so I ignored it.. Now I just found a solution though: drop to the su shell.

Problem:-
$ sudo vim /etc/bash.bashrc
sudo: /etc/sudoers is mode 0640, should be 0440
sudo: no valid sudoers sources found, quitting

Solution:-

$ su -
Password:
root@metabuntu:~# chmod 0440 /etc/sudoers
root@metabuntu:~# logout
$ sudo vim /etc/bash.bashrc ## Now works!!!

By: Ubuntu /etc/sudoers problem

Ubuntu /etc/sudoers problem — Sun, 21 Nov 2010 19:26:33 +0000

[...] any users to the sudo users as my sudoers file has the wrong permission. My only access is SSH thus this(via recovery mode) solution doesn’t seem to work for [...]

By: eby louis

eby louis — Tue, 24 Aug 2010 13:06:31 +0000

thanks a lot
can u describe about the sudoers entries
how can i reduce the 15 minute allowed time for a user in sudoers entry

have a nice day

By: koguma

koguma — Tue, 06 Apr 2010 09:19:47 +0000

Thanks a LOT !!!
I was near to reinstall my ubuntu server and with your help I could avoid it….

By: Shirdrn

Shirdrn — Tue, 17 Nov 2009 09:07:22 +0000

Thanks!!!