some configuration on linux centos whm/cpanel

hi
i have setup my new linux centos server with whm/cpanel and need some basic configuration like

1: change SSH port from 22 to 1110
2: configure multiphp, so cpanel user can select any php version.
3: secure server to avoid any attacks.
4: configure DNS and hostname and SSL
5: configure email settings for delivery like SPF, DKIM etc
6: set my email so i get any logs emails
7: anything else you recommend

thanks