VestaCP is a free open source host management panel under Linux. The core environment includes Apache, Nginx, Bind, Exim, Dovecot, vsftpd, MySQL, etc. It is more suitable for friends who are not used to command line operations. I have installed a good VPS last year, and the overall feeling is average (personally, the reviews on the Internet are pretty good), for example, there is no online file management function, etc.