That question isn't a coding question. It is a server configuration question. It would be off-topic for StackOverflow. If it were to be moved to another site, it would be most appropriate for ServerFault.
The reasons to move a question are:
- It is off-topic here.
- The community is more likely to be able to answer the question on another site.
The second reason is why programming questions are more appropriate for StackOverflow. Some of the people who answer questions here are coders, but everybody at StackOverflow is a coder.
The question now has several answers and it seems appropriate for this site to me, so it can stay.