Hi
" 1- OVH server come including 1 IPV4 and some failover IP's, so can I use 5 of this OVH failover IP's to create the VPS's and login using SSH normally etc ? "
yes. 1 ipv4 is included, you will need to buy the other 4 ipv4 (one time payment).
"2- I read many guides until now which made me...