DNS configuration on dedicated serverYou have a domain in OVh and you'd like it to point to your dedicated server - your server will be DNS for your domain.
Log into Manager and choose Domain name.
Choose your domain and click "Your DNS servers". The next page allows assigning new DNS:
Insert : nsXXXX.ovh.net in 1 and ns.ovh.net in 2 (the order doesn't matter).
Log into the registrar's control panel and change DNS configuration:
Insert : nsXXXX.ovh.net in 1 and ns.ovh.net in 2.
After confirmation, you need to install your domain on the server and on ns.ovh.net.
Those manuals may help you with these operations: