Now that we know why we need to back up our site regularly, it is time to look into actually creating a backup of our TYPO3 website.
We need to back up:
The TYPO3 files
A copy of the database
These two things make up our TYPO3 installation. We need the database as it contains the website's content and records of the website's users. We need the TYPO3 files as they contain the website's settings in the configuration files, copies of the website's design, and copies of data that has been cached by TYPO3.
Depending on the operating system we are using, there are a number of different ways in which we can back up the files from TYPO3. Under this section, we will look into backing up the files on Windows and on Linux. This is because we looked at the Windows Installer for setting up a local copy of TYPO3, and Linux is the most popular hosting environment for websites.