appsettings.json

{
  "ConnectionStrings": {
    "DB": "Data Source=YourServerName or IP;Initial Catalog=DatabaseName;User ID=sa {SA is server admin the default} ;password= The Password;TrustServerCertificate=True",
  },
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft.AspNetCore": "Warning"
    }
  },
  "AllowedHosts": "*"
}