You can manage DNS records of your domains using the following instructions:
There are two options:
You can use managed DNS services from any provider or from domain registrar and point A, MX, CNAME etc. records to your VPS IP address.
You can set up primary and secondary nameservers for main domain (for example, ns1.domain.com and ns2.domain.com) from Microsoft DNS services in your VPS and then assign these nameservers to your main domain from domain registrar control panel. For more information, please refer to the following URL:https://support.softsyshosting.com/index.php?/Knowledgebase/Article/View/53/10/configuring-custom-nameservers