php - File system permissions

Question

It was a cms and I would like to set all my files on server to -rw-------

This will make my website working as usual? or they will not read each other, for example i have this:

require_once 'include/checksession.php';

Answer 1

First, you need to understand what each "segment" means.

• first triad what the owner can do
• second triad what the group members can do
• third triad what other users can do

Your permission set (-rw-------) only has permissions on the first triad - the owner of the file - which only has read and write permissions.

• read The Read permission refers to a user's capability to read the contents of the file.
• write The Write permissions refer to a user's capability to write or modify a file or directory.
• execute The Execute permission affects a user's capability to execute a file or view the contents of a directory.

Therefore, the owner of the group can read the contents of the file/directory, write to the file/directory, and modify the file/directory.

Under careful file/directory ownership policies, I guess this will be okay - but I wouldn't count on it. If Apache/Nginx/... doesn't have ownership of the file, your application won't work.

This being said, I'd like to raise a few questions;

• Why change the permissions of all files/directories on your server?
• Why set a global permission rule, and not individual to each file/directory?
• What's the end-goal of this?

I'd take some consideration to Jon T's answer