I have several instances of
httpd running on my Mac. Don't need to run a web server, would like to end them all, as they add up to about 100mb of unnessecary RAM. What is the configuration that sets them to run? How can I disable it?
Mountain Lion removed the Web Sharing option, maybe you upgraded and had it running some time in the past? Anyway, you'll need to open Terminal for this:
The first will fail if you've already killed all the processes, the second disables startup.
and remove httpd from these locations. This will stop it from ever running again. You can keep a backup though just in case you want the Apache web server in the future.