1

I was going to modify my.conf file so I wanted to change its permissions, but I ran the code in the current dir instead of only the file

Now all files in the /etc (and the folders) have 777 permissions. Now when I run a terminal, it shows "/etc/bash.bashrc: Permission denied" error.

Also I was using proxy and now proxy is also does not work and I cannot reach to the internet from that machine.

I am using OpenSuse...

How can I fix all permissions?

  • Sorry pal, but setting up permissions in /etc is kinda messy. If you have a spare machine I would suggest to try to change de permissions, but maybe a reinstall would be easier... – Ivan Mar 8 '13 at 15:38
  • @Ivan: A reinstall is overkill, most files are 644, most directories 755. Only some files must be 600 (like /etc/shadow and /etc/ssh/ssh_host*) or 755 (like scripts in /etc/init.d and /etc/sysconfig/network/scripts/). – jaume Mar 8 '13 at 16:07
  • @jaume: thanks. I will try the answer first then yours – wakeup Mar 8 '13 at 16:45
  • Thanks, but my comment only says "don't panic!" and explains a quick repair, don't promote it to an answer :-) I'd recommend that you thoroughly repair permissions, either using Zhen's script below or by other means. – jaume Mar 8 '13 at 17:01
4

You need another similar machine with also OpenSuse (or install a Virtual Machine image). You should be able to do ssh against this image:

Put a simple script in this server, like (e.g: call it show_permission and put on the $HOME):

#!/bin/bash
if [ -e $1 ]
then
   find $1 -printf "%m %p\n" 
else
   echo ERROR $1
fi

Then, in your ill-server, you can execute this:

find /etc/ -exec ssh <IMAGE_SERVER> ./show_permission {} ";"

to get the permissions to restore. The lines that start with ERROR, will need manual fix.

With this command you will get a permission list of /etc files. Append chmod to all lines and execute. Double check it first, this time :D

  • This would work if he can access the machine. – Ivan Mar 8 '13 at 16:59
  • @Ivan, well. I didn't test it with a VM image, but its a good option to get a similar machine. – Zhen Mar 8 '13 at 17:03
  • Agreed, @Zhen, just not sure what is his condition: if he can ssh into the machine, if he has physical access, and if he has a spare machine. It seems to me that your script would work - and I gave it an upvote. – Ivan Mar 8 '13 at 17:05

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