Why should you assign a second DNS to your server?
The use of a secondary DNS in another network other than the primary DNS will enable your visitors to have access to your website just in case of a master DNS breakdown. This is a free service for all dedicated servers.
You can save your domains on the secondary DNS server of OVH for all zones that you manage on your server:
- For OVH servers: sdns2.ovh.net
- For Kimsufi servers: ns.kimsufi.com