Set up the OpenVPN server on Debian 9.

update and upgrade version SSH on a non-standard port Fail2Ban - configure automatic logging and banning of IP addresses that exceed limits; SSL; Nginx - configure blocking of empty UAs and known scanners (AI bots, Web.Archive, Yandex, Ahrefs, Dataforseo etc.), close scanning from IN, PK, SG, CN, limit the maximum number of requests per second; phpMyAdmin - install and configure on a non-standard port; close unused ports, on connection drop;