Set up a server on Debian and move the sites

You need to set up a new server on Debian and move the sites to it from another server. The old server has 63 domains and some have subdomains. We need to move everything completely. All site settings must be saved, all caching settings made on Nginx must be saved, etc. In general, I will give you access to the old and new servers in the new one should be a copy of the old one. The reason for replacing the old one is a lack of physical capacity, and the settings are all right for me! Even the passwords should be exactly the same! I will give them to you, too. You need a master of your craft! Please don't disturb the beginners!