I would like to set up a webserver to improve my skills and further my education. My problem right now is that I can only access HTML pages. When I create an intex.jsp and put it on the webserver, the jsp page does not appear, but a forbidden page. If I link the jsp page via the HTML page, only the text of the document appears. What is the reason for this and how can I work around it so that I can also work with dynamic web pages?
I've never worked in practice before, only in theory so far, so I don't have much idea.