Certainly, this server doesn't have cPanel so your suggestion does not work. What is installed is called cPanel DNS Only. It is the lighter version of cPanel with sole purpose of supporting a DNS server. Everything else is stripped out of it except for DNS and some reseller account creation. That is why it's free and we use it for the DNS server, but we're also hosting our company site on it, using nginx, php-fpm, mysql everything else is left be, it's only pure-ftpd that keeps disappearing on me.
PS: I should have been more clear in my title with "DNS" and do "DNS Only", sorry for that.