Wrong Permission to /etc folder

Question

I given wrong permission to the /etc folder wrongly

chmod -R 777 /etc

While i want to login as root it gives me error and gives the following output.

How can i give the correct permission and fix this ?

system13@motpl:~$ sudo su
sudo: /etc/sudoers is mode 0777, should be 0440
sudo: no valid sudoers sources found, quitting
sudo: unable to initialize policy plugin
system13@motpl:~$ su root
Password: 
su: Authentication failure
system13@motpl:~$

/etc is only writeable by root as default. Did you chmod initially as root? Can you just revert? — Sparhawk, May 15 '14 at 06:32
I gave full permission (777) to /etc folder as a root. Now i can't login as a root as said in the question. — Sulthan Allaudeen, May 15 '14 at 06:35
http://askubuntu.com/questions/115358/changed-etc-permission-in-oneiric-ubuntu11-10-by-using-sudo-chmod-665-etc — Rinzwind, May 15 '14 at 06:48
Actually, hopefully it's clear, but use the answers for the /etc directory instead of just /etc/sudoers. Also, @SulthanAllaudeen, for future reference, sudo chmod is preferred, but if you really want to log in as root, use sudo -i. — Sparhawk, May 15 '14 at 07:05
@Sparhawk Yes thanks you. And then i fixed the error and its working good — Sulthan Allaudeen, May 15 '14 at 09:29

score 0 · Accepted Answer · answered May 15 '14 at 07:21

0

The Problem was fixed :

I typed pkexec chmod 0440 /etc/sudoers

And then the permission was changed and then i gave the default permission /etc as chmod 744 /etc

answered May 15 '14 at 07:21

Sulthan Allaudeen

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Wrong Permission to /etc folder

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