Hi ,
For DNS in workgroup environment, if we want DNS service to properly work, you need configure with a Primary DNS Suffix matching one of the zones that DNS will be authoritative for (meaning that DNS is hosting the zone).
Otherwise, you will occur the following problem:
Please configure the Primary DNS Suffix as picture below:
After the restart, nslookup will work fine on DNS server:
For more details ,you can refer to the following article. This will help you understand better:
https://blogs.msmvps.com/acefekay/tag/dns-in-a-workgroup/
Best Regards,
Candy
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