title: Move Redmine Server whilst keeping external database
body: <p>I currently have redmine running on an nginx server. The actual MySQL database is on an external server and everything is working fine.</p>
  
  <p>Now I would like to move it to an Apache Server on a different machine, ideally without changing/moving the database. </p>
  
  <p>Is this possible, or do I always need to export/import the database regardless? Happy to stick with the same version of redmine (in my case 4.0.1., Ruby 2.5.1-p57, Rails 5.2.2, no plugins installed). If positive, what are the conditions on Ruby/Rails versions? Do they all have to be exactly what I had on the old one?</p>