Creation of a user which will be used to transfer files by FTP and to create the website. For that purpose, point to System and select the icon ‘Users and groups’.
Then select ‘Create a new user’.
It’s quite practical to create a user with a name similar to the domain name, to avoid any confusion (the choice of the command “/bin/false” allows you to forbid the use of telnet/ssh).
The fields you have to fill in are underlined in red in the next picture: