I have read this topic What's involved getting domain name pointed at my dedicated server (Win2008)?
but it's not precise enough for me.
At my registrar I have
A Records
Name (ex. www)
TTL (ex. 3600)
IPv4 Address (ex. 192.168.1.1)
When I tried to add www and the IP address of my own server it says error processing the request, why ?