How to properly protect website data?

Question

Data protection

Hello!
Please tell me what means or methods are there for the most correct protection of site and database data.
For example, I do not want the data to be hosted by someone else for confidential reasons, but I want to deploy everything on my server. Are there serious security measures for your server? Maybe some kind of encryption, keys, passwords?
Thanks a lot!

Answer 1

1. Encrypt the file system
2. Do not store keys and passwords from it there. This means that when you restart the server, you will have to enter the password manually before you get data to the encrypted data.