I have developed a website with php and apache server on linux centos I am not professional on security issues and I think some folks try to hack my website first please advice me which security things I should follow
but my problem:
tonight as I tried to login firebug showed it tries to load login.php for serveral times but a file error occurs (I think a permanent move or something....)
anyway when I checked the login.php file in linux I have noticed the file permission has been changed and all x
(execution) flags has been removed.
could it be the work of a hacker? what should I do to prevent such happening.
I changed chown to root, and also set chmod of all files from 775 to 755 please give more