Talking about this feature http://httpd.apache.org/docs/current/howto/public_html.html
Is there a way (HOW?) to have Apache take on (setuid) the ID of each "~user", instead of doing everything under the www-data userid?
There is a related question here: Apache per user permissions
In that question, one answer actually advises against doing what I'm asking:
If you were to run one apache instance for each user, and have that apache owned by the user, you'd thereby grant apache permissions to write to all of the user's directories. That's generally not considered a good idea at all.
The fact that the answerer stated that you SHOULD NOT do this, seems to imply that you CAN do it. So now I'm just asking HOW TO do it, because I have a very specific use-case that requires it, but running a separate instance for each userid is too resource-intensive. So, is there an easier way?