NS record
NS record is used to point a subdomain to a set of name servers. These records will indicate which name servers are authoritative for the domain.
*NOTE: You are recommended to choose NS record if you are using a different name server for the subdomain.
Step 1 : You may refer to https://ca.myduniahosting.com/knowledgebase/10239/How-to-manage-DNS-records.html to been able to add your NS record.
Step 2 : Choose NS from the drop-down box.
Step 3 : Fill in the record settings.
Name : You can leave it blank. It will set as your domain name by default.
TTL : You can leave it as default (14400), or change it. But, you are recommended to leave it unchanged.
RDATA : Fill in with the <domain_name> specifies a host which should be authoritative for the specified class and domain.
After clicking on Add Record, you will see the NS record has been saved.
