What are the correct permissions?

[yellowsc2]

Hello,

When I installed SugarCRM I changed all permissions to 777 to install correctly. Now I have changed all directories to 755 and all files to 644 however I am getting errors logging in. When all permissions are set to 755 for directories and files, it works great. What should I be setting permissions to so it will be secure and work?

Thanks for your time and keep up the great work!

Regards,
Marshall

[skewty]

The correct permissions depend the the owner and group of the files and directories.
When apache runs on a linux machine it runs using a certain user account.
That user account can belong to one or more groups.
That user account might be: apache, web, nobody. It depends on your setup.

If apache is running as (user = apache and groups = nogroup only) and
the files are set to (user = nobody and group = web) and the permissions are
755 (that is rwx for user; rx for group, rx for everyone)
apache basically gets rx for everyone because it is owned by a different user and apache doesn't belong to the group web.

In Binary
-------------
7 = 111 rwx
6 = 110 rw
5 = 101 r x
4 = 100 r
3 = 011 wx
2 = 010 w
1 = 001 x
0 = 000

the first 1 is for read access
the middle 1 is for write access
the last 1 is for execute access