HTML and CSS Reference
through the App Store) will refuse to save any changes to this file (see figures C.16 and
Figure C.16. When you try to edit httpd.conf in most text editors, you'll first get a warning saying the file is locked.
Figure C.17. If you try to unlock httpd.conf, in most text editors you'll get another warning saying that it can't be
Some graphical text editors will allow you to unlock and edit files like httpd.conf, but such
capabilities aren't allowed in applications found in the App Store. For example, BBEdit,
which is available in the App Store, will allow you to edit httpd.conf, but if you purchase
the App Store version you'll need to download an additional file from the BareBones web-
site to enable this feature.