today i noticed something of a security issue with my apacher server. i have a linux (unix) machine running fedora core 7 from RedHat and i noticed that when i go to a url that doesn't have an index file like index.html, or index.htm or index.php and so on, it show/displays all the files in that directory. well, i want to be able to hide all these files and instead show something else, like an error or something. i think this is error 404

anyway, this is how my page looks like, as you can see, it shows and displays my files, which i dont want them to be shown to my visitors. as you can see from this picture, is says:

index of /forums/images/ and parent directory and it lists all my files, i want to avoid having to list my files.

how do i do this?