This perfect servers download category page. The subpages below contain each server installation in the form of VirtualBox image files. Downloads are available for free after registration.
I try to make installs and install them here with several Linux distributions and versions.
Server updates are only made on the latest version of the server line, so earlier versions require custom updates. If I do an upgrade of an earlier server (eg Debian package upgrade, PHP, MySQL, previously installed CMS systems, etc.) and upload it again, I will write about it in a separate article and also report it on the download page for that server.
I do not take any responsibility for the servers, so use them at your own risk and experiment!